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19-1535; Rev 1; 6/00
L MANUA ION KIT ALUAT DATA SHEET EV WS FOLLO
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
Features
o Ultra-High Linearity at Ultra-Low Current and Noise o +2.7V to +3.6V Operation o Pin-Selectable Low-Gain Mode Reduces Gain by 17dB and Current by 3mA o Pin-Selectable Paging Mode Reduces Current Draw by 6mA when Transmitter Is Not in Use o LO Output Buffers o LO Frequency Doubler (MAX2321) o LO Frequency Divider (MAX2326) o 0.1A Shutdown Current o 20-Pin TSSOP-EP Package
General Description
The MAX2320/MAX2321/MAX2322/MAX2324/MAX2326/ MAX2327 high-performance silicon germanium (SiGe) receiver front-end ICs set a new industry standard for low noise and high linearity at a low supply current. This family integrates a variety of unique features such as an LO frequency doubler and divider, dual low-noise amplifier (LNA) gain settings, and a low-current paging mode that extends the handset standby time. The MAX2320 family includes six ICs: four operate at both cellular and PCS frequencies, one operates at cellular frequencies, and one at PCS frequencies (see Selector Guide). Each part includes an LNA with a high input third-order intercept point (IIP3) to minimize intermodulation and cross-modulation in the presence of large interfering signals. In low-gain mode, the LNA is bypassed to provide higher cascaded IIP3 at a lower current. For paging, a low-current, high-gain mode is provided. The CDMA mixers in cellular and PCS bands have high linearity, low noise, and differential IF outputs. The FM mixer is designed for lower current and a single-ended output. All devices come in a 20-pin TSSOP-EP package with exposed paddle (EP) and are specified for the extended temperature range (-40C to +85C).
MAX2320/21/22/24/26/27
Ordering Information
PART MAX2320EUP MAX2321EUP MAX2322EUP MAX2324EUP MAX2326EUP MAX2327EUP TEMP. RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C PIN-PACKAGE 20 TSSOP-EP 20 TSSOP-EP 20 TSSOP-EP 20 TSSOP-EP 20 TSSOP-EP 20 TSSOP-EP
Applications
CDMA/TDMA/PDC/WCDMA/GSM Cellular Phones Single/Dual/Triple-Mode Phones Wireless Local Loop (WLL)
TOP VIEW
LNAOUTH 1 LNAOUTL 2 20 MIXINH 19 MIXINL 18 RBIAS 17 CDMA+
Pin Configurations
Selector Guide
PART MAX2320 MAX2321 MAX2322 MAX2324 MAX2326 MAX2327 DESCRIPTION Dual-band, dual VCO inputs, and dual IF outputs MAX2320 with LO doubler PCS band, single mode with optional frequency doubler Cellular band, dual IF outputs MAX2320 with LO divider Dual-band, dual VCO inputs, and separately controlled VCO buffers
20 TSSOP-EP 6mm x 6.3mm
RLNA 3 LNAINH 4 LNAINL 5 BAND 6 LIN 7 GAIN 8 LOLIN 9 LOHIN 10
MAX2320 MAX2321 MAX2326
16 CDMA15 BUFFEN 14 VCC 13 FMOUT 12 LOLOUT 11 LOHOUT
TSSOP Pin Configurations continued at end of data sheet. 1
Typical Application Circuits appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
ABSOLUTE MAXIMUM RATINGS
VCC to GND ...........................................................-0.3V to +4.3V Digital Input Voltage to GND ......................-0.3V to (VCC + 0.3V) RF Input Signals ...........................................................1.0V peak Continuous Power Dissipation (TA = +70C) 20-Pin TSSOP-EP (derate 80mW/C above +70C)........6.4W Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS--MAX2320/MAX2321/MAX2326
(VCC = +2.7V to +3.6V, RRBIAS = RRLNA = 20k, no RF signals applied, BUFFEN = low, LO buffer outputs connected to VCC through 50 resistors, all other RF and IF outputs connected to VCC, TA = -40C to +85C, unless otherwise noted. Typical values are at VCC = +2.75V and TA = +25C, unless otherwise noted.) PARAMETER Supply Voltage SYMBOL VCC High-gain, high-linearity modes PCS band Cellular band PCS band Cellular band PCS band Cellular band MAX2320/6 MAX2321 MAX2320/1 MAX2326 MAX2320/6 MAX2321 MAX2320/1 MAX2326 MAX2320/6 MAX2321 MAX2320/1 MAX2326 CONDITIONS MIN +2.7 20 24 20 21 15 19 15 15.5 17 21 17 17.5 14 Cellular band MAX2320/1 LO Buffer Supply Current ILOBUF Additional current for BUFFEN = high Cellular band MAX2326 PCS band MAX2320/1/6 Shutdown Supply Current Digital Input Logic High Digital Input Logic Low Digital Input Current High Digital Input Current Low ISHDN VIH VIL IIH IIL -35 (Note 1) 2.0 0.6 5 5 5.5 5 0.1 TYP MAX +3.6 25.3 30.8 25.3 25.5 19.5 25 19.5 20 21.5 26 21.5 21.5 18.5 7.5 8.5 7.5 20 A V V A A mA mA UNITS V
Operating Supply Current (Note 1)
ICC
High-gain, low-linearity paging modes
Low-gain, high-linearity modes FM mode
2
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Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
DC ELECTRICAL CHARACTERISTICS--MAX2322/MAX2324
(VCC = +2.7V to +3.6V, RRBIAS = RRLNA = 20k, no RF signals applied, BUFFEN = low, LO buffer outputs connected to VCC through 50 resistors, all other RF and IF outputs connected to VCC, TA = -40C to +85C, unless otherwise noted. Typical values are at VCC = +2.75V and TA = +25C, unless otherwise noted.) PARAMETER Supply Voltage SYMBOL VCC High-gain, high-linearity modes High-gain, low-linearity paging modes Low-gain, high-linearity modes PCS band (MAX2322) LOX2 = low LOX2 = high LOX2 = low LOX2 = high LOX2 = low LOX2 = high CONDITIONS MIN +2.7 20 24 20 15 19 15 17 21 17 14.5 5 0.1 2.0 0.6 5 -35 MAX2324 only MAX2324 only MAX2324 only MAX2324 only, VMODEOUT = 2.4V 30 -100 1.7 0.4 TYP MAX +3.6 25.3 30.8 25.3 19.5 25 19.5 21.5 26 21.5 18.5 7.5 20 mA A V V A A V V A A mA UNITS V
MAX2320/21/22/24/26/27
Cellular band (MAX2324) PCS band (MAX2322)
Operating Supply Current (Note 1)
ICC
Cellular band (MAX2324) PCS band (MAX2322)
Cellular band (MAX2324)
FM mode (MAX2324 only) LO Buffer Supply Current Shutdown Supply Current Digital Input Logic High Digital Input Logic Low Digital Input Current High Digital Input Current Low Digital Output Logic High Digital Output Logic Low Digital Output Current High Digital Output Current Low ILOBUF ISHDN VIH VIL IIH IIL VOH VOL IOH IOL Additional current for BUFFEN = high (Note 1)
DC ELECTRICAL CHARACTERISTICS--MAX2327
(VCC = +2.7V to +3.6V, RRBIAS = RRLNA = 20k, no RF signals applied, BUFFEN = low, LO buffer outputs connected to VCC through 50 resistors, all other RF and IF outputs connected to VCC, TA = -40C to +85C, unless otherwise noted. Typical values are at VCC = +2.75V and TA = +25C, unless otherwise noted.) PARAMETER Supply Voltage Operating Supply Current (Note 1) LO Buffer Supply Current Shutdown Supply Current Digital Input Logic High Digital Input Logic Low Digital Input Current High Digital Input Current Low SYMBOL VCC ICC ILOBUF ISHDN VIH VIL IIH IIL -35 High-gain mode FM mode Additional current for BUFFEN = high (Note 1) 2.0 0.6 5 PCS band Cellular band CONDITIONS MIN +2.7 15 15 14.5 5 0.1 TYP MAX +3.6 19.5 19.5 18.5 7.5 20 mA A V V A A UNITS V mA
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3
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
AC ELECTRICAL CHARACTERISTICS--MAX2320/MAX2321/MAX2326
(MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOLIN = 1091MHz (digital mode), fLOLIN = 991MHz (FM mode), fLOHIN = 1750MHz (MAX2320, MAX2322 with LOX2 = low, MAX2326 with BAND = low, MAX2327), fLLOHIN = 1085MHz (MAX2321 with BAND = low, MAX2322 with LOX2 = high), fLOHIN = 1091MHz (MAX2321 with BAND = high), fLOHIN = 2182MHz (MAX2326 with BAND = high), LO input power = -7dBm (MAX2320/MAX2326), 50 system, TA = +25C, unless otherwise noted.) (Note 2)
PARAMETER Low-Band RF Frequency Range (Note 3) High-Band RF Frequency Range (Note 3) Low-Band LO Frequency Range (Note 3) High-Band LO Frequency Range (Note 3) IF Frequency Range (Note 3) LNA PERFORMANCE HIGH-GAIN, HIGH-LINEARITY MODES (Note 1) TA = +25C Gain (Note 4) G TA = -40C to +85C Gain Variation Over Temperature Relative to +25C Noise Figure (Note 5) Input Third-Order Intercept (Notes 5, 6) Input 1dB Compression NF IIP3 POUT 1dB TA = -40C to +85C PCS Cellular TA = TMIN to TMAX TA = TMIN to TMAX PCS Cellular PCS Cellular -11 -11 7 6 -10 -10 13.5 14.5 PCS Cellular 0.5 dB 0.5 1.9 1.4 2.1 1.5 2.2 1.6 dB PCS Cellular PCS Cellular PCS Cellular 11.5 13 13 14 14.5 15 14.5 15 0.5 dB 0.5 1.8 1.3 +8 +8 2 1.4 2.1 1.5 dB dBm dBm 16 16 17 16.5 dB SYMBOL CONDITIONS MIN 800 -3 TYP +3 MAX 1000 UNITS MHz
1800
2500
MHz
700
1150
MHz
1600
2300
MHz
50
400
MHz
HIGH-GAIN, LOW-LINEARITY PAGING MODES AND FM MODE (Note 1) Gain (Note 4) Gain Variation Over Temperature Relative to +25C Noise Figure (Note 5) G PCS Cellular TA = -40C to +85C PCS Cellular dB
4
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Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOLIN = 1091MHz (digital mode), fLOLIN = 991MHz (FM mode), fLOHIN = 1750MHz (MAX2320, MAX2322 with LOX2 = low, MAX2326 with BAND = low, MAX2327), fLLOHIN = 1085MHz (MAX2321 with BAND = low, MAX2322 with LOX2 = high), fLOHIN = 1091MHz (MAX2321 with BAND = high), fLOHIN = 2182MHz (MAX2326 with BAND = high), LO input power = -7dBm (MAX2320/MAX2326), 50 system, TA = +25C, unless otherwise noted.) (Note 2)
PARAMETER Input Third-Order Intercept (Notes 5, 6) SYMBOL PCS Cellular PCS Cellular TA = -40C to +85C NF IIP3 PCS Cellular PCS Cellular MIXER PERFORMANCE HIGH-GAIN, HIGH-LINEARITY, AND LOW-GAIN MODES (Note 1) TA = +25C, PCS Gain (Note 4) G TA = -40C to +85C, PCS TA = +25C, cellular TA = -40C to +85C, cellular Gain Variation Over Temperature Relative to +25C (Note 5) TA = -40C to +85C PCS Noise Figure NF Cellular PCS, TA = TMIN to TMAX Cellular, TA = TMIN to TMAX PCS Cellular TA = TMIN to TMAX PCS Cellular Without doubler With doubler Without divider With divider Without doubler With doubler 1.8 1.4 1 -11 -12 2.4 2.8 1.8 -10 -10.7 Without doubler With doubler Without doubler With doubler 11 10.5 10 9.6 12 11.3 11.8 11.1 10.8 10.4 127 11.9 12.5 12 12.5 12 13.4 13.4 1 1 7.5 11 7.5 7.8 +4 +4.7 3.2 dBm dBm 7.8 12.3 8.1 8.4 8 13.5 8.5 8.8 dB dB 13.2 12.9 14.3 13.1 14.0 15.5 14 13.5 15.3 14.3 14.7 16.5 dB +10.5 +11.5 PCS Cellular CONDITIONS MIN -3 TYP +6.5 +6 -2 -1.5 0.5 dB 0.5 5 4 +11.5 +12.5 5.5 4.25 +12.5 +13.5 6 4.5 dB dBm +3 MAX UNITS dBm
MAX2320/21/22/24/26/27
LOW-GAIN, HIGH-LINEARITY MODES (Note 1) Gain (Note 4) Gain Variation Over Temperature Relative to +25C Noise Figure (Note 5) Input Third-Order Intercept (Notes 5, 6) G dB
Input Third-Order Intercept (Notes 5, 6)
IIP3
Input dB Compression
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5
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOLIN = 1091MHz (digital mode), fLOLIN = 991MHz (FM mode), fLOHIN = 1750MHz (MAX2320, MAX2322 with LOX2 = low, MAX2326 with BAND = low, MAX2327), fLLOHIN = 1085MHz (MAX2321 with BAND = low, MAX2322 with LOX2 = high), fLOHIN = 1091MHz (MAX2321 with BAND = high), fLOHIN = 2182MHz (MAX2326 with BAND = high), LO input power = -7dBm (MAX2320/MAX2326), 50 system, TA = +25C, unless otherwise noted.) (Note 2)
PARAMETER SYMBOL CONDITIONS Without doubler With doubler MIN 10.6 10.2 11.2 PCS Cellular Without doubler PCS Noise Figure NF Cellular PCS IIP3 Cellular FM MODE (Note 1) Gain (Note 4) Noise Figure Input Third-Order Intercept (Notes 5, 6) G NF IIP3 TA = -40C to +85C 2.3 3.2 TA = +25C TA = -40C to +85C 9.7 7.8 10.4 9.0 11.2 11.2 10.6 4.9 11.9 14.0 11.1 12.7 15.4 11.5 dB dB dBm With doubler (Note 7) Without divider With divider Without doubler With doubler -3 11.3 10.8 12.1 TYP 12 11.5 13 1 1 7.2 10.5 7 7.5 +1 +2.2 +1.0 dBm 7.5 12 7.2 7.7 +3 12.1 12.4 13.8 MAX 12.8 13.1 14.7 1 dB 1 7.6 13.4 7.6 8.1 dB dB UNITS
HIGH-GAIN, LOW-LINEARITY, AND LOW-GAIN MODES (Note 1) PCS Gain (Note 4) G Cellular Band Gain Variation Over Temperature Relative to +25C TA = -40C to +85C
Input Third-Order Intercept
LO BUFFER PERFORMANCE (BUFFEN = HIGH) LO Output Level LO_OUT Even Harmonic Distortion LO Emissions at LNA Input Port Interstage filter rejection = 20dB Load = 100 pullup resistor BUFFEN = GND -12 -44 -31 -50 dBm dBc dBm
Note 1: See Tables 1-5 for operational mode selection. Note 2: A total of 36 devices from 3 different wafer lots are used to determine the standard deviation. The lots were selected to represent worst-case process conditions. Note 3: Operation is characterized for the frequencies specified in the conditions; for other frequencies in the band, see Tables 8-12 for LNA and mixer S parameters. Note 4: Guaranteed by design, characterization, and production functional test. Note 5: Guaranteed by design and characterization. Note 6: For cellular band, RF inputs are -25dBm each tone at 881MHz and 882MHz, fLO = 1091MHz. For PCS band, RF inputs are -25dBm each tone at 1960MHz and 1961MHz, fLO = 2170MHz. For IIP3 vs. ICC trade-off, see Typical Operating Characteristics.
6
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Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
Typical Operating Characteristics
(MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOHIN = 1750MHz, fLOLIN = 1091MHz (digital modes), fLOLIN = 991MHz (FM mode), LO input power = -7dBm, 50 system, all measurements include matching component losses but not connector and trace losses, TA = +25C, unless otherwise noted.)
PCS-BAND SUPPLY CURRENT vs. TEMPERATURE
MAX2320 toc01
MAX2320/21/22/24/26/27
CELLULAR-BAND SUPPLY CURRENT vs. TEMPERATURE
MAX2320 toc02
CELLULAR-BAND LNA S11
MAX2320 toc03
25 HGHL LGHL 15 HGLL 10
25 HGHL LGHL 15 HGLL
20 SUPPLY CURRENT (mA)
20 SUPPLY CURRENT (mA)
10 HGLL, FM
HGHL
5
5
LGHL 0 -50 0 50 100 TEMPERATURE (C) 0 -50 0 50 100 TEMPERATURE (C)
CELLULAR-BAND LNA S22
MAX2320 toc04
PCS-BAND LNA S11
MAX2320 toc05
PCS-BAND LNA S22
MAX2320 toc06
LGHL HGLL, FM
HGHL
HGLL HGHL HGHL HGLL LGHL LGHL
DIGITAL MIXER DIFFERENTIAL IF PORT IMPEDANCE PCS-BAND MIXER S11
MAX2320 toc07
CELLULAR-BAND MIXER S11
MAX2320 toc08
160 140 120 100 80 60 40 20 0 0
MAX2320 toc09
0.80 PARALLEL CAPACITANCE (pF) 0.70
PARALLEL RESISTANCE (k)
CAPACITANCE
0.60
RESISTANCE
0.50
ALL MODES ALL MODES
0.40
0.30 50 100 150 200 250 300 350 400 450 FREQUENCY (MHz)
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7
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
Typical Operating Characteristics (continued)
(MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOHIN = 1750MHz, fLOLIN = 1091MHz (digital modes), fLOLIN = 991MHz (FM mode), LO input power = -7dBm, 50 system, all measurements include matching component losses but not connector and trace losses, TA = +25C, unless otherwise noted.)
FM MIXER IF PORT IMPEDANCE
100 90 PARALLEL RESISTANCE (k) 80 70 60 50 40 30 20 10 0 0 0.5 50 100 150 200 250 300 350 400 450 FREQUENCY (MHz) RESISTANCE 0.6 0.7 0.8
MAX2320 toc10
CELLULAR-BAND HGHL LNA GAIN vs. CURRENT
MAX2320toc11
PCS-BAND HGHL LNA GAIN vs. CURRENT
TA = -40C 16 15 GAIN (dB)
MAX2320toc12
1.0
17 16 15 GAIN (dB) 14 13 12 11 10 4 6 8 10 12 14 TA = +85C TA = +25C TA = -40C
17
CAPACITANCE PARALLEL CAPACITANCE (pF) 0.9
14 13 12 11 10
TA = +25C TA = +85C
16
4
9 LNA CURRENT (mA)
14
LNA CURRENT (mA)
PCS-BAND HGHL LNA GAIN vs. CURRENT
MAX2320 toc13
CELLULAR-BAND LNA GAIN vs. FREQUENCY
MAX2320toc14
PCS-BAND LNA GAIN vs. FREQUENCY
15 13 11 HGHL HGLL, FM
MAX2320toc15
16 15 14 GAIN (dB) 13 12 11 VCC = +2.7V TO +3.6V
16 14 12 10 GAIN (dB) 8 6 4 2 0 LGHL 850 870 890 HGHL HGHL, FM
GAIN (dB)
9 7 5 3 1 -1 -3 LGHL 1900 1950 FREQUENCY (MHz) 2000
10 5 10 15 20 LNA CURRENT (mA)
-2 910 FREQUENCY (MHz)
CELLULAR-BAND HGHL LNA MAXIMUM AVAILABLE GAIN
MAX2320 TOC16
PCS-BAND HGHL LNA MAXIMUM AVAILABLE GAIN
MAX2320 TOC17
CELLULAR-BAND HGHL LNA IIP3 vs. CURRENT
9 8 7 IIP3 (dBm) 6 5 4 3 2 1 TA = -40C TA = +25C TA = +85C
MAX2320toc18
18 MAXIMUM AVAILABLE GAIN (dB) 17 16 15 14 13 12 11 10 700 750 800 850 900 950
18 MAXIMUM AVAILABLE GAIN (dB) 17 16 15 14 13 12
10
1000
1700 1800 1900 2000 2100 2200 2300 2400 2500 FREQUENCY (MHz)
0 0 5 10 LNA CURRENT (mA) 15 20
FREQUENCY (MHz)
8
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Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
Typical Operating Characteristics (continued)
(MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOHIN = 1750MHz, fLOLIN = 1091MHz (digital modes), fLOLIN = 991MHz (FM mode), LO input power = -7dBm, 50 system, all measurements include matching component losses but not connector and trace losses, TA = +25C, unless otherwise noted.)
CELLULAR-BAND HGHL LNA IIP3 vs. CURRENT
MAX2320toc19
MAX2320/21/22/24/26/27
PCS-BAND HGHL LNA IIP3 vs. CURRENT
MAX2320toc20
PCS-BAND HGHL LNA IIP3 vs. CURRENT
10 8 VCC = 3.6V
MAX2320toc21
14 12 10 8 IIP3 (dBm) 6 4 2 0 -2 -4 4 6 8 10 12 14 16 VCC = 2.7V VCC = 3V VCC = 3.6V
10 8 6 IIP3 (dBm) TA = +25C TA = +85C
12
2 0 -2 -4 -6
IIP3 (dBm)
4
TA = -40C
6 4 2 VCC = 2.7V 0 -2 -4 VCC = 3V
18
4
6
8
10
12
14
16
18
4
6
8
10
12
14
16
18
LNA CURRENT (mA)
LNA CURRENT (mA)
LNA CURRENT (mA)
PCS-BAND HGHL LNA IIP3 vs. CURRENT
MAX2320 toc22
CELLULAR-BAND HGHL LNA NOISE FIGURE vs. FREQUENCY
MAX2320toc23
CELLULAR-BAND HGLL LNA NOISE FIGURE vs. FREQUENCY
MAX2320toc24
14 LGHL 12 10 IIP3 (dBm) 8 6 4 2 0 -40 -30 -20 HGHL HGLL
1.8 1.7 1.6 NOISE FIGURE (dB) 1.5 1.4 1.3 1.2 1.1 1.0 7mA 5.6mA 11.2mA 9mA
1.45 1.40 NOISE FIGURE (dB) 1.35 1.30 1.25 1.20 1.15 1.10
-10
850
860
870
880
890
900
910
850
860
870
880
890
900
910
LNA CURRENT (mA)
FREQUENCY (MHz)
FREQUENCY (MHz)
PCS-BAND HGHL NOISE FIGURE vs. FREQUENCY
MAX2320 toc25
PCS-BAND HGLL LNA NOISE FIGURE vs. FREQUENCY
MAX2320toc26
CELLULAR-BAND HGHL MIXER CONVERSION GAIN vs. CURRENT
14.5 14.0 CONVERSION GAIN (dB) 13.5 13.0 12.5 12.0 11.5 11.0 10.5 10.0 TA = -40C, LOW SIDE LO TA = +25C, HIGH SIDE LO TA = +25C, LOW SIDE LO TA = +85C, HIGH SIDE LO TA = +85C, LOW SIDE LO 6 11 MIXER CURRENT (mA) 16 TA = -40C, HIGH SIDE LO
MAX2320toc27
2.0 11.2mA 1.9 NOISE FIGURE (dB) 1.8 1.7 1.6 1.5 1.4 1920 1940 1960 1980 2000 7mA
1.95 1.90 1.85 NOISE FIGURE (dB) 1.80 1.75 1.70 1.65 1.60 1.55 1.50
15.0
5.6mA
2020
1.45 1920 1940 1960 1980 2000 2020 FREQUENCY (MHz)
FREQUENCY (MHz)
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9
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
Typical Operating Characteristics (continued)
(MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOHIN = 1750MHz, fLOLIN = 1091MHz (digital modes), fLOLIN = 991MHz (FM mode), LO input power = -7dBm, 50 system, all measurements include matching component losses but not connector and trace losses, TA = +25C, unless otherwise noted.)
CELLULAR-BAND HGHL MIXER CONVERSION GAIN vs. CURRENT
MAX2320 toc28
PCS-BAND HGHL MIXER CONVERSION GAIN vs. CURRENT
MAX2320toc29
PCS-BAND HGHL MIXER CONVERSION GAIN vs. CURRENT
VCC = +3.6V TO +2.7V HIGH AND LOW SIDE LO
MAX2320 toc30
14.0 13.5 CONVERSION GAIN (dB) 13.0 12.5 12.0 11.5 11.0 6
VCC = +3.6V, HIGH SIDE LO VCC = +3.0V, HIGH SIDE LO
15 14 13 CONVERSION GAIN (dB) 12 11 10 9 8 7 6 6
TA = -45C, HIGH SIDE LO
14.0 13.5 CONVERSION GAIN (dB) 13.0 12.5 12.0 11.5 11.0
VCC = +3.0V, VCC = +2.7V, LOW SIDE LO HIGH SIDE LO VCC = +2.7V, LOW SIDE LO VCC = +3.6V, LOW SIDE LO
TA = -45C, LOW SIDE LO
TA = +25C, HIGH SIDE LO TA = +25C, LOW SIDE LO TA = +85C, HIGH SIDE LO TA = +85C, LOW SIDE LO 11 MIXER CURRENT (mA) 16
11 MIXER CURRENT (mA)
16
6
11 MIXER CURRENT (mA)
16
CELLULAR-BAND MIXER CONVERSION GAIN vs. LO INPUT LEVEL
HGHL, LOW SIDE LO
MAX2320toc31
PCS-BAND HGHL MIXER CONVERSION GAIN vs. LO INPUT LEVEL
HGHL, LOW SIDE LO 12.5 CONVERSION GAIN (dB) 12.0 11.5 11.0 HGLL, HIGH SIDE LO 10.5 10.0 9.5 9.0 HGHL, HIGH SIDE LO HGLL, LOW SIDE LO
MAX2320toc32
CELLULAR-BAND HGHL MIXER CONVERSION GAIN vs. INPUT FREQUENCY
MAX2320 toc33
14 13 CONVERSION GAIN (dB) 12 11 10 9 8 7 6 -20
13.0
14 12 CONVERSION GAIN (dB) 10 8 6 4 2 0
HGHL, HIGH SIDE LO HGLL, LOW SIDE LO HGLL, HIGH SIDE LO FM, LOW SIDE LO FM, HIGH SIDE LO
-15
-10
-5
0
5
-19
-14
-9
-4
1
6
700
800
900
1000
LO INPUT LEVEL (dBm)
LO INPUT LEVEL (dBm)
RF INPUT FREQUENCY (MHz)
PCS-BAND HGHL MIXER CONVERSION GAIN vs. RF INPUT FREQUENCY
MAX2320 toc34
CELLULAR-BAND HGHL MIXER IIP3 vs. CURRENT
MAX2320 toc35
CELLULAR-BAND HGHL MIXER IIP3 vs. CURRENT
5 4
MAX2320 toc36
14 12 CONVERSION GAIN (dB) 10
8 6 4 IIP3 (dBm) TA = +85C, TA = +85C, LOW SIDE LO HIGH SIDE LO
6
IIP (dBm)
3 2 1 0 -1 -2
8 6 4 2 0 1700 1900 2100 2300 2500 RF INPUT FREQUENCY (MHz)
2 0 -2 -4 6
TA = +25C, TA = +25C, LOW SIDE LO HIGH SIDE LO TA = -40C, LOW SIDE LO TA = -40C, HIGH SIDE LO
HIGH SIDE/LOW SIDE LO VCC = 2.7V TO 3.6V
11 MIXER CURRENT (mA)
16
6
11 MIXER CURRENT (mA)
16
10
______________________________________________________________________________________
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
Typical Operating Characteristics (continued)
(MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOHIN = 1750MHz, fLOLIN = 1091MHz (digital modes), fLOLIN = 991MHz (FM mode), LO input power = -7dBm, 50 system, all measurements include matching component losses but not connector and trace losses, TA = +25C, unless otherwise noted.)
CELLULAR-BAND MIXER IIP3 vs. RF INPUT LEVEL
MAX2320toc37
MAX2320/21/22/24/26/27
CELLULAR-BAND MIXER IIP3 vs. LO INPUT LEVEL
MAX2320 toc38
PCS-BAND HGHL MIXER IIP3 vs. CURRENT
TA = +85C, HIGH SIDE LO 8 6 IIP3 (dBm) TA = +25C, HIGH SIDE LO
MAX2320 toc39
5 4 3 2 IIP3 (dBm) 1 0 -1 -2 -3 -4 -5 -35 -30 -25 -20 -15 LOW SIDE LO, HGLL HIGH SIDE LO, HGLL HIGH SIDE LO, HGHL LOW SIDE LO, HGHL LOW SIDE LO, LGHL HIGH SIDE LO, LGHL
6 5 4 IIP3 (dBm) 3 2 1
HIGH SIDE LO, FM
10
HIGH SIDE LO, HGHL AND LGHL
4 2 0 -2 -4 TA = +85C, LOW SIDE LO TA = +25C, LOW SIDE LO TA = -40C, LOW SIDE LO TA = -40C, HIGH SIDE LO
LOW SIDE LO, LOW SIDE LO, FM HGHL AND LGHL LOW SIDE LO, HGLL -2 2 6 10
HIGH SIDE LO, HGLL 0 -10 -18 -14 -10 -6 RF INPUT LEVEL PER TONE (dBm)
6
11 MIXER CURRENT (mA)
16
LO INPUT LEVEL (dBm)
PCS-BAND HGHL MIXER IIP3 vs. CURRENT
MAX2320 toc40
PCS-BAND MIXER IIP3 vs. RF INPUT LEVEL
8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -35
MAX2320 toc41
PCS-BAND MIXER IIP3 vs. LO INPUT LEVEL
HIGH SIDE LO, LGHL 7 6 IIP3 (dBm) 5 4 3 LOW SIDE LO, LGHL LOW SIDE LO, HGLL LOW SIDE LO, HGHL HIGH SIDE LO, HGHL
MAX2320toc42
8 6 4 IIP3 (dBm)
HIGH SIDE LO, 3V
HIGH SIDE LO, 2.7V LOW SIDE LO, 3V HIGH SIDE LO, 3.6V
8
HIGH SIDE LO, HGHL, HIGH SIDE LO, LGHL LOW SIDE LO, LGHL
IIP3 (dB)
2 0 -2 -4 6
LOW SIDE LO, 3.6V LOW SIDE LO, 2.7V
LOW SIDE LO, HGHL
LOW SIDE LO, HGLL HIGH SIDE LO, HGLL -30 -25 -20 -15 -10
2 1 0 -18
HIGH SIDE LO, HGLL -14 -10 -6 -2 2 6 10
11 MIXER CURRENT (mA)
16
RF INPUT LEVEL PER TONE (dBm)
LO INPUT LEVEL (dBm)
CELLULAR-BAND HGHL MIXER NOISE FIGURE vs. LO INPUT LEVEL
MAX2320 toc43
CELLULAR-BAND HGLL MIXER NOISE FIGURE vs. LO INPUT LEVEL
MAX2320 toc44
CELLULAR-BAND FM MIXER NOISE FIGURE vs. LO INPUT LEVEL
14 12 NOISE FIGURE (dB) LO SIDE LO 10 8 6 4 2 0 HIGH SIDE LO
MAX2320toc45
14 12 LOW SIDE LO NOISE FIGURE (dB) 10 8 6 4 2 0 -17 -12 -7 -2 3 LO INPUT LEVEL (dBm) HIGH SIDE LO
14 12 NOISE FIGURE (dB) 10 8 6 4 2 0 -17 -12 -7 -2 3 LO INPUT LEVEL (dBm) HIGH SIDE LO LOW SIDE LO
16
-17
-12
-7
-2
3
LO INPUT LEVEL (dBm)
______________________________________________________________________________________
11
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
Typical Operating Characteristics (continued)
(MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOHIN = 1750MHz, fLOLIN = 1091MHz (digital modes), fLOLIN = 991MHz (FM mode), LO input power = -7dBm, 50 system, all measurements include matching component losses but not connector and trace losses, TA = +25C, unless otherwise noted.)
PCS-BAND HGHL MIXER NOISE FIGURE vs. LO INPUT LEVEL
MAX2320 toc46
PCS-BAND HGLL MIXER NOISE FIGURE vs. LO INPUT LEVEL
MAX2320 toc47
CELLULAR-BAND LO BUFFER OUTPUT LEVEL vs. INPUT LEVEL
MAX2320 toc48
14 12 NOISE FIGURE (dB) 10 8 6 4 2 0 -17 -12 -7 -2 3 LO INPUT LEVEL (dBm) LOW SIDE LO HIGH SIDE LO
14 12 NOISE FIGURE (dB) 10 8 6 4 2 0 -17 -12 -7 -2 3 LO INPUT LEVEL (dBm) LOW SIDE LO HIGH SIDE LO
0
-5 OUTPUT LEVEL (dBm)
-10
-15 TA = -45C TO +85C HIGH SIDE AND LOW SIDE LO
-20
-25 -20 -10 0 10 LO INPUT LEVEL (dBm)
CELLULAR-BAND 2ND AND 3RD HARMONICS vs. LO INPUT POWER
MAX2320 toc49
PCS-BAND LO BUFFER OUTPUT LEVEL vs. INPUT LEVEL
MAX2320 toc50
0 -10 HARMONIC POWER (dBm)
fLO = 1091MHz 3RD HARMONIC
0
-5 OUTPUT LEVEL (dBm)
-20 -30 -40 -50 -60 -70 -20 -10 0 10 LO INPUT LEVEL (dB)
-10
2ND HARMONIC
-15
-20
TA = -45C TO +85C HIGH SIDE AND LOW SIDE LO
-25 -20 -10 0 10 LO INPUT LEVEL (dBm)
PCS-BAND 2ND AND 3RD HARMONICS LO BUFFER OUTPUT vs. INPUT LEVEL
MAX2320 toc51
PCS-BAND MIXER 2 x 2 SPURIOUS REJECTION
-57 2 x 2 SPURIOUS OUTPUT (dBc) -59 -61 -63 -65 -67 -69 -71 -73 -75 HGHL, WITHOUT LO DOUBLER HGLL, WITHOUT LO DOUBLER
MAX2320toc52
0 -10 HARMONIC POWER (dBm) -20 -30 -40 -50 -60 -70
fLO = 1750MHz
-55
2ND HARMONIC
3RD HARMONIC
-20
-10
0
10
80
90
100
110
120
LO INPUT LEVEL (dB)
IF OUTPUT FREQUENCY (MHz)
12
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Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
Pin Description
PIN MAX2320 MAX2321 MAX2326 1 MAX2322 MAX2324 MAX2327 NAME FUNCTION
MAX2320/21/22/24/26/27
1
--
1
LNAOUTH
High-Band LNA Output. Connect a pull-up inductor to VCC and an external series capacitor as part of the matching network. Low-Band LNA Output. Connect a pull-up inductor to VCC and an external series capacitor as part of the matching network. LNA Bias-Setting Resistor Connection. For nominal bias, connect a 20k resistor to ground. The resistor value controls the LNA's linearity in high-gain, high-linearity modes. High-Band RF Input. Requires a blocking capacitor and a matching network. The capacitor may be used as part of the matching network. Logic Output. Indicates mode of operation. VMODEOUT = high in FM mode. Low-Band RF Input. Requires a blocking capacitor and a matching network. The capacitor may be used as part of the matching network. Shutdown Logic Input. See Detailed Description for control modes. Band-Select Logic Input. See Detailed Description for control modes. Linearity-Select Logic Input. See Detailed Description for control modes. Gain-Select Logic Input. See Detailed Description for control modes. Cellular-Band Mode Select Logic Input. See Detailed Description for control modes. Low-Frequency LO Input. Used in FM mode on all parts and in cellular digital mode for MAX2320/MAX2324. High-Frequency LO Input. For MAX2321, used in cellular digital mode and in PCS mode with the doubler active. For MAX2320/MAX2327, used in PCS mode without the doubler. For MAX2322, used with or without the doubler. For MAX2326, used in PCS mode and cellular digital mode with the divide-by-two.
2
--
2
2
LNAOUTL
3
3
3
--
RLNA
4
4
--
4
LNAINH
--
--
4
--
MODEOUT
5
--
5
5
LNAINL
-- 6 7 8 -- 9
6 -- 7 8 -- --
6 -- 7 8 -- 9
7 6 -- -- 8 9
SHDN BAND LIN GAIN MODE LOLIN
10
10
--
10
LOHIN
______________________________________________________________________________________
13
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
Pin Description (continued)
PIN MAX2320 MAX2321 MAX2326 MAX2322 PIN MAX2324 MAX2327 NAME FUNCTION
11
11
--
11
LOHOUT
High-Frequency LO Buffer Output. Open-collector output requires pull-up inductor or pull-up resistor of 100 or less. Reactive match to the load delivers maximum power. Low-Frequency LO Buffer Output. Open-collector output requires pull-up inductor or pull-up resistor of 100 or less. Reactive match to the load delivers maximum power. FM Mixer Output. Requires a pull-up inductor to VCC and a series capacitor as part of the matching network. LO Doubler Logic Input. Drive LOX2 high to enable the LO doubler. Power Supply. Bypass with a 1000pF capacitor as close to the pin as possible. LO Output Buffer Enable. The LO buffers are controlled separately from the rest of the IC. Drive BUFFEN high to power up the LO output buffer associated with the selected LO input port. CDMA Mixer Differential Outputs. Require pullup inductors and series capacitors as part of the matching network. Mixer Differential Outputs. Require pull-up inductors and series capacitors as part of the matching network. Bias-Setting Resistor Connection. For nominal bias, connect 20k resistor to ground. The resistor value controls the digital LNA's linearity in low-gain, digital, or FM mode, and controls the mixers in all modes. Low-Band Mixer Input. Requires a blocking capacitor and a matching network. The capacitor may be used as part of the matching network. High-Band Mixer Input. Requires a blocking capacitor and a matching network. The capacitor may be used as part of the matching network. No Connection. Do not make any connection to these pins. Ground Reference for RF, DC, and Logic Inputs. Solder the slug evenly to the board ground plane.
12
--
12
12
LOLOUT
13
--
13
13
FMOUT
-- 14
13 14
-- 14
-- 14
LOX2 VCC
15
15
15
15
BUFFEN
16, 17
16, 17
16, 17
--
CDMA-, CDMA+ IFOUT+, IFOUT-
--
--
--
16, 17
18
18
18
18
RBIAS
19
--
19
19
MIXINL
20
20
--
20
MIXINH
--
2, 5, 9, 12, 19 Slug
1, 10, 11, 20
3
N.C.
Slug
Slug
Slug
GND
14
______________________________________________________________________________________
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
Detailed Description
Low-Noise Amplifier
Within its operating bands, each device in the MAX2320 family (except the MAX2327) has three modes of LNA operation: high gain, high linearity (HGHL); high gain, low linearity (HGLL); and low gain, high linearity (LGHL). The logic inputs control the LNA mode as described in the AC Electrical Characteristics. Use HGHL mode when extra-high LNA linearity is required for cross-modulation suppression. Use HGLL mode when the transmitter is off and cross-modulation is not a concern. When the LNA changes modes, the input VSWR change is minimal. Use LGHL mode for receiving large signals and when high sensitivity is not required. The MAX2327 LNA has only an HGLL mode. Adjust the HGHL mode LNA linearity by changing R RLNA , and adjust linearity of the other modes by changing RRBIAS. control inputs increase the current in the downconverter. When the linearity requirement is not high, the current is lower.
MAX2320/21/22/24/26/27
LO Output Buffers
The BUFFEN logic input turns the open-collector LO output buffers on and off. This feature saves current if the buffers are not required.
Operational Modes
Each device has logic input pins that control the different operational modes listed in Tables 1-5. MAX2320/MAX2321/MAX2326 Operation The MAX2320/MAX2321/MAX2326 are dual-band, triplemode receivers that amplify and downconvert cellularand PCS-band signals. They consist of cellular and PCS LNAs; cellular digital, cellular FM, and PCS digital mixers; and cellular and PCS LO buffers. The MAX2321 has an LO frequency doubler on-chip, so a single cellularband VCO can be used for both the cellular- and PCSband mixers. Selecting the PCS path activates the LO frequency doubler. The MAX2326 has an LO divide-bytwo circuit, so a single PCS-band VCO can be used for both the cellular and PCS mixers. Selecting the cellular path activates the LO divide-by-two circuit. Three logic input pins--BAND, GAIN, and LIN--control eight operational modes of the LNAs and mixers. The modes are summarized in Table 1.
Downconverter
The downconverters in these devices are double-balanced mixers. The PCS-band mixer and digital cellularband mixer share the same IF output ports. The cellular band FM mixer has its own IF output to feed a different filter. Adjust the downconverter linearity and current by changing RRBIAS (see Typical Operating Characteristics). When the linearity requirement is high, the mode
Table 1. MAX2320/MAX2321/MAX2326 Operational Modes
DESCRIPTION Shutdown. The entire part is shut down except for the LO buffer, which is controlled by BUFFEN. Low-Gain, High-Linearity (LGHL) PCS Mode. The PCS LNA and mixer are in LGHL mode. High-Gain, Low-Linearity (HGLL) PCS Mode. The LNA and mixer are in HGLL mode. High-Gain, High-Linearity (HGHL) PCS Mode. The LNA and mixer are in HGHL mode. High-Gain, Low-Linearity (HGLL) Cellular FM Mode. The cellular LNA is in HGLL mode. The FM mixer and associated LO buffer are selected. Low-Gain, High-Linearity (LGHL) Cellular Digital Mode. The cellular LNA and mixer are in LGHL mode. High-Gain, Low-Linearity (HGLL) Cellular Digital Mode. The cellular LNA and mixer are in HGLL mode. High-Gain, High-Linearity (HGHL ) Cellular Digital Mode. The cellular LNA and mixer are in HGHL mode. Note: L = Logic Low; H = Logic High ______________________________________________________________________________________ 15 BAND L L L L H H H H GAIN L L H H L L H H LIN L H L H L H L H
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
MAX2322 Operation The MAX2322 is a lower-cost PCS-only version that can be installed as a drop-in replacement for the dual-band versions. It consists of a PCS LNA, PCS mixer, pinselectable LO frequency doubler, and LO buffer. Logic input SHDN = V CC / GND turns on/off the entire IC except the LO buffer. The LOX2 logic input controls the LO frequency doubler. LOX2 = GND disables the doubler when using a PCS band VCO, and LOX2 = VCC activates the doubler when using a cellular-band VCO. GAIN and LIN logic inputs control the MAX2322's three operational modes, as summarized in Table 2. MAX2324 Operation The MAX2324 is a lower-cost cellular-only version that can be installed as a drop-in replacement for the dualband versions. It consists of a cellular LNA, cellular digital mixer, cellular FM mixer, and LO buffer. A SHDN logic input turns on/off the entire IC except the LO buffer. GAIN and LIN logic inputs control the MAX2324's three operational modes, as summarized in Table 3. MAX2327 Operation The MAX2327 is similar to the MAX2320 except it only features an HGLL mode, and either LO output buffer is selectable during shutdown. It consists of PCS and cellular LNAs; PCS, cellular digital, and cellular FM mixers; and PCS and cellular LO buffers. A SHDN logic input turns on/off the entire IC except the LO buffer. BAND and MODE logic inputs control the MAX2327's three operational modes, as summarized in Table 4.
Table 2. MAX2322 Operational Modes
OPERATIONAL MODE Not used. Low-Gain, High-Linearity (LGHL) PCS Mode. The LNA and mixer are in LGHL mode. High-Gain, Low-Linearity (HGLL) PCS Mode. The LNA and mixer are in HGLL mode. High-Gain, High-Linearity (HGHL) PCS Mode. The LNA and mixer are in HGHL mode. Note: L = Logic Low; H = Logic High GAIN L L LIN L H
H
L
H
H
Table 3. MAX2324 Operational Modes
OPERATIONAL MODE FM Mode. The LNA is in HGLL mode. The FM mixer and the associated LO buffer are selected. Low-Gain, High-Linearity (LGHL) Cellular Mode. The LNA and digital mixer are in LGHL mode. High-Gain, Low-Linearity (HGLL ) Cellular Mode. The LNA and digital mixer are in HGLL mode. High-Gain, High-Linearity (HGHL ) Cellular Mode. The LNA and digital mixer are in HGHL mode. Note: L = Logic Low; H = Logic High GAIN L LIN L
L
H
H
L
Applications Information
Cascaded LNA/Mixer Performance
The LNA and mixer design aims at optimizing cascaded performance in all gain and linearity modes. In highgain, high-linearity mode, both the LNA and mixer have a low noise figure, high gain, and high linearity. The LNA has high gain to minimize the noise contribution of the mixer, thus increasing the receiver's sensitivity and extra-high linearity for superior cross-modulation suppression. The HGLL mode is used when the transmitter is off and cross-modulation is not a concern. In lowgain, high-linearity mode, the received signal is strong enough that linearity is the primary concern. The LNA gain is reduced for higher system linearity. Tables 5 and 6 summarize the cascaded performance.
H
H
Table 4. MAX2327 Operational Modes
OPERATIONAL MODE Not used. Digital PCS Mode. The LNA and mixer are in HGLL mode. FM Mode. The cellular FM mixer is selected. Digital Cellular Mode. The cellular digital mixer is selected. Note: L = Logic Low; H = Logic High BAND L L H H MODE L H L H
S Parameters
The S parameters are listed in Tables 7-11. An electronic copy is also available at www.maxim-ic.com /MAX2320/S_table/.
16
______________________________________________________________________________________
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
Layout Considerations
Keep RF signal lines as short as possible to minimize losses and radiation. Use high-Q components for the LNA input matching circuit to achieve the lowest possible noise figure. At the digital mixer outputs, keep the differential signal lines together and of equal length to ensure signal balance. For best gain and noise performance, solder the slug evenly to the board ground plane.
MAX2320/21/22/24/26/27
Table 5. Typical Cascaded Performance of Cellular-Band Receiver with 3dB Interstage Filter Loss
PARAMETER Conversion Power Gain Noise Figure Third-Order Input Intercept HIGH GAIN, HIGH LINEARITY 25.4dB 2.1dB -8.9dBm HIGH GAIN, LOW LINEARITY 24.5dB 2.3dB -10.6dBm LOW GAIN, HIGH LINEARITY 8.9dB 11.8dB -6.8dBm FM 22.7dB 3.3dB -6.8dBm
Table 6. Typical Cascaded Performance of PCS-Band Receiver with 3dB Interstage Filter Loss
PARAMETER Conversion Power Gain Noise Figure Third-Order Input Intercept HIGH GAIN, HIGH LINEARITY 24dB 2.6dB -7.6dBm HIGH GAIN, LOW LINEARITY 22.5dB 3.0dB -9.3dBm LOW GAIN 7.5dB 12.4dB 7.1dBm
Table 7. Cellular LNA S Parameters in High-Gain, High-Linearity Mode
FREQUENCY (MHz) 700 750 800 850 900 950 1000 S11 (mag) 0.579 0.548 0.534 0.52 0.51 0.503 0.496 S11 (phase) -74.8 -78.4 -81.2 -83.7 -86.1 -88.5 -90.6 S21 (mag) 4.63 4.39 4.13 3.88 3.7 3.5 3.3 S21 (phase) 92.1 87.9 84.4 81.9 79.4 76.6 74.9 S12 (mag) 0.085 0.089 0.0908 0.096 0.099 0.104 0.109 S12 (phase) 60.9 60.6 60 60.1 58.8 58.3 59.1 S22 (mag) 0.714 0.696 0.689 0.683 0.677 0.674 0.669 S22 (phase) -34.7 -35.9 -36.6 -37.6 -38.3 -39.3 -40.8
______________________________________________________________________________________
17
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
Table 8. PCS LNA S Parameters in High-Gain, High-Linearity Mode
FREQUENCY (MHz) 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 2300 2350 2400 2450 2500 S11 (mag) 0.46 0.446 0.44 0.439 0.434 0.43 0.423 0.407 0.391 0.405 0.467 0.503 0.525 0.54 0.55 0.571 0.614 S11 (phase) -112 -113 -113 -113 -114 -115 -116 -115 -112 -106 -104 -107 -110 -112 -113 -113 -113 S21 (mag) 4.22 4.07 4.18 4.23 3.9 3.82 3.85 3.82 3.82 3.68 3.56 3.67 3.83 3.88 3.9 3.79 3.78 S21 (phase) 86 88 88 84 82 84 83 83 81 79 81 82 81 78 75 73 74 S12 (mag) 0.077 0.082 0.086 0.09 0.093 0.09 0.094 0.098 0.103 0.101 0.093 0.094 0.099 0.1 0.106 0.126 0.158 S12 (phase) 77 77 76 77 72 75 76 76 74 71 73 79 82 86 93 99 100 S22 (mag) 0.64 0.64 0.643 0.657 0.68 0.673 0.681 0.69 0.7 0.695 0.677 0.683 0.705 0.727 0.739 0.754 0.769 S22 (phase) -51 -52 -52 -53 -55 -57 -58 -59 -61 -63 -64 -63 -64 -66 -67 -69 -71
Table 9. Cellular Mixer S11 in High-Gain, High-Linearity Mode
FREQUENCY (MHz) 700 750 800 850 900 950 1000 S11 (mag) 0.853 0.849 0.846 0.844 0.843 0.842 0.842 S11 (phase) -35.8 -38 -40.2 -42.2 -44.1 -46.3 -48.5
18
______________________________________________________________________________________
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
Table 10. PCS Mixer S11 in High-Gain High-Linearity Mode
FREQUENCY (MHz) 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 2300 2350 2400 2450 2500 S11 (mag) 0.865 0.864 0.865 0.867 0.863 0.862 0.861 0.879 0.86 0.858 0.854 0.85 0.845 0.838 0.83 0.825 0.805 S11 (phase) -62 -63 -64 -64 -65 -65 -66 -67 -68 -68 -69 -71 -72 -74 -76 -78 -82
Table 11. Mixer IF Port S22
DIGITAL MIXER FREQUENCY (MHz) 50 100 110 130 150 200 210 250 300 350 400 S22 (mag) 0.999 0.999 0.999 0.998 0.998 0.998 0.998 0.997 0.997 0.996 0.996 S22 (phase) -1.10 -2.26 -2.46 -2.89 -3.35 -4.45 -4.67 -5.48 -6.48 -7.47 -8.36 FREQUENCY (MHz) 50 70 85 100 110 150 200 250 300 350 400 S22 (mag) 0.999 0.998 0.998 0.997 0.997 0.996 0.995 0.995 0.994 0.993 0.992 FM MIXER S22 (phase) -1.69 -2.38 -2.92 -3.38 -3.71 -4.97 -6.49 -7.82 -9.06 -10.28 -11.40
______________________________________________________________________________________
19
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
Typical Application Circuits
MAX2320 (DUAL BAND, DUAL VCO INPUTS, AND DUAL IF OUTPUTS)
C19 2.7pF 869MHz-894MHz C17 6800pF
4.7nH C18 1pF 1930MHz-1990MHz R11 30 C15 6800pF C14 1.5pF L6 5.6nH 1 2 C2 100pF PCS DUPLEXER 4 6800pF 1pF CELLULAR DUPLEXER 6800pF DIPLEXER FROM CELLULAR PA 1.65nH R4 2k 3.85nH 3.3pF LOGIC INPUTS CDMA- 16 5 6 7 8 9 LNAINL LNAINH CDMA+ 17 L2 6.8nH R1 20k 3 LNAOUTH LNAOUTL RLNA
VCC
NOTE: THE MAX2320 IS RECOMMENDED FOR HANDSETS THAT OPERATE IN THREE MODES: PCS-BAND CDMA, CELLULAR-BAND CDMA, AND CELLULAR-BAND FM. KEY FEATURES: TWO LO INPUT PORTS FOR SEPARATE VCOs, TWO LO BUFFER OUTPUT PORTS. VCC
L1 1.8nH
MAX2320
MIXINH 20 MIXINL 19 RBIAS 18 R5 20k L4 110nH L5 110nH C13 0.01F C12 3.3pF
C1 100pF
C11 3.3pF 210MHz VCC
TO VGA
BAND LIN GAIN LOLIN
BUFFEN 15 VCC 14 FMOUT 13
LOGIC INPUT
C10 1000pF
L3 560nH
C9 1000pF R6 7.5k C8 4.7pF FM
FROM PCS PA
CELLULAR LO
C3 100pF C4 22pF
TO VGA LOLOUT 12 R3 10 LOHIN LOHOUT 11 51 R2 51 VCC C5 100pF C6 22pF C7 100pF BUFFERED LO OUTPUTS 85MHz
PCS LO
20
______________________________________________________________________________________
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
Typical Application Circuits (continued)
MAX2321 (DUAL BAND, DUAL VCO INPUTS, LO DOUBLER, DUAL IF OUTPUTS, AND LO BUFFER)
C19 869MHz-894MHz 2.7pF C17 6800pF
MAX2320/21/22/24/26/27
4.7nH
4.7nH
NOTE: THE MAX2321 IS RECOMMENDED FOR TRIPLE-MODE PHONES. KEY FEATURE: LO DOUBLER FOR SINGLE VCO OPERATION.
VCC
C18 1pF C15 6800pF C14 1.5pF L6 5.6nH 1 2 C2 100pF L2 6.8nH R1 20k 3 4 6800pF 1pF CELLULAR DUPLEXER 6800pF 1.65nH R4 2k 3.85nH 3.3pF LOGIC INPUTS FROM CELLULAR PA CDMA- 16 5 6 7 8 9 LNAINL VCC BAND LIN x2 GAIN LOLIN FMOUT 13 LOLOUT 12 R2 51 BUFFEN 15 VCC 14 LOGIC INPUT LNAOUTH LNAOUTL RLNA LNAINH
1930MHz-1990MHz R11 30 L1 1.8nH
VCC
MAX2321
MIXINH 20 MIXINL 19 RBIAS 18 R5 20k L4 120nH L5 120nH C13 0.01F C12 3.9pF 184MHz C11 3.9pF TO VGA
C1 100pF
PCS DUPLEXER CDMA+ 17
DIPLEXER
C10 1000pF
L3 270nH
C9 1000pF R6 7.5k FM
FROM PCS PA
C3 100pF C4 100pF
CELLULAR LO
C7 100pF VCC
10 LOHIN
LOHOUT 11
C8 2.2pF BUFFERED LO OUTPUTS
TO VGA 184MHz
R2 51
C5 100pF
C6 22pF
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21
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
Typical Application Circuits (continued)
MAX2322 (PCS BAND, SINGLE MODE WITH OPTIONAL FREQUENCY DOUBLER)
C16 1pF VCC
C14 6800pF C13 1.5pF
L6 5.6nH
NOTE: THE MAX2322 IS RECOMMENDED FOR PCS SINGLE-BAND PHONES.
1930MHz-1990MHz R11 30 L1 1.8nH
VCC 1 2 R1 20k 3 4 LNAOUTH N.C. RLNA LNAINH
MAX2322
MIXINH 20 N.C. 19 RBIAS 18 R4 20k C12 0.01F C11 3.3pF
C1 100pF
PCS DUPLEXER CDMA+ 17 R3 2k 5 6 LOGIC INPUTS 7 8 9 C4 100pF 10 LOHIN LOHOUT 11 VCC R2 51 N.C. SHDN LIN GAIN x2 N.C. N.C. 12 CDMA- 16 BUFFEN 15 VCC 14 LOX2 13 LOGIC INPUT LOGIC INPUT 1.65nH
L4 110nH
L5 110nH
6800pF 1pF FROM PCS PA
C10 3.3pF 210MHz VCC
TO VGA
C8 1000pF
PCS OR CELLULAR LO
C6 22pF BUFFERED LO OUTPUT
C5 100pF
22
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Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
Typical Application Circuits (continued)
MAX2324 (CELLULAR BAND, DUAL IF OUTPUTS)
C15 869MHz-894MHz 2.7pF C14 6800pF
MAX2320/21/22/24/26/27
4.7nH VCC
NOTE: THE MAX2324 IS RECOMMENDED FOR DUAL-MODE (CDMA/FM) PHONES IN THE CELLULAR BAND.
R11 30
1 L1 6.8nH R1 20k 2 3 4
N.C. LNAOUTL RLNA MODEOUT
MAX2324
N.C. 20 MIXINL 19 RBIAS 18 R5 20k R4 2k
VCC
C1 100pF
C12 0.01F L4 270nH L5 270nH C11 8.2pF
LOGIC OUTPUT CELLULAR DUPLEXER 6800pF
CDMA+ 17
3.85nH 3.3pF LOGIC INPUTS
CDMA- 16 5 6 7 8 9 LNAINL VCC SHDN LIN GAIN LOLIN BUFFEN 15 VCC 14 FMOUT 13 LOGIC INPUT C8 1000pF
C10 8.2pF 85MHz C9 1000pF L3 560nH R6 7.5k C8 4.7pF FM
TO VGA
FROM CELLULAR PA
C3 100pF CELLULAR LO
TO VGA LOLOUT 12 C6 100pF 10 N.C. N.C. 11 R3 51 VCC C4 100pF BUFFERED LO OUTPUT 85MHz
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23
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
Typical Application Circuits (continued)
MAX2326 (DUAL BAND, DUAL VCO INPUTS, AND DUAL IF OUTPUTS WITH LO DIVIDER)
C19 2.7pF 869MHz-894MHz C17 6800pF
4.7nH C18 1pF VCC 1930MHz-1990MHz R11 30 C15 6800pF C14 1.5pF L6 5.6nH 1 2 R1 20k 3 4 LNAOUTH LNAOUTL RLNA LNAINH
NOTE: THE MAX2326 IS RECOMMENDED FOR DUAL-BAND, TRIPLE-MODE PHONES. KEY FEATURES: TWO LO INPUT/OUTPUT PORTS FOR SEPARATE VCOs, A FREQUENCY DIVIDER TO ALLOW THE USE OF A PCS VCO FOR BOTH BANDS.
L1 1.8nH L2 6.8nH C2 100pF PCS DUPLEXER
MAX2326
VCC MIXINH 20 MIXINL 19 RBIAS 18 R5 20k R4 2k CDMA- 16 L4 120nH L5 120nH C13 0.01F C12 3.9pF
C1 100pF
CDMA+ 17
1.65nH 1pF 6800pF CELLULAR DUPLEXER 3.85nH 6800pF 5 DIPLEXER FROM CELLULAR PA 3.3pF LOGIC INPUTS 6 7 8 9
C11 3.9pF 184MHz VCC
TO VGA
LNAINL BAND LIN GAIN LOLIN /2 BUFFEN 15 VCC 14 FMOUT 13 LOLOUT R3 51 LOGIC INPUT
C10 1000pF
C9 1000pF L3 270nH R6 7.5k C8 2.2pF FM
FROM PCS PA
AMPS LO PCS LO
C3 100pF C4 22pF
TO VGA 184MHz C7 100pF VCC R2 51 C5 100pF BUFFERED LO OUTPUTS
10 LOHIN
/2
LOHOUT 11
C6 22pF
24
______________________________________________________________________________________
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
Typical Application Circuits (continued)
MAX2327 (DUAL BAND, DUAL VCO INPUTS, AND SEPARATELY CONTROLLED VCO BUFFERS)
C17 869MHz-894MHz 2.7pF C15 6800pF
MAX2320/21/22/24/26/27
4.7nH 1930MHz-1990MHz C14 6800pF 1.5pF L6 5.6nH NOTE: THE MAX2327 IS RECOMMENDED FOR DUAL-BAND, TRIPLE-MODE PHONES WITH TDMA IN THE DIGITAL MODES, e.g., PCS1900 + AMPS. KEY FEATURES: TWO LO INPUT/OUTPUT PORTS FOR SEPARATE VCOs, SEPARATELY CONTROLLED VCO BUFFERS. R11 30 L1 1.8nH VCC 1 2 C2 100pF PCS SWITCH L2 6.8nH 6800pF 1pF CELLULAR DUPLEXER 6800pF DIPLEXER FROM CELLULAR PA 3.85nH 3.3pF LOGIC INPUTS 5 6 7 8 9 LNAINL BAND SHDN MODE LOLIN BUFFEN 15 VCC 14 FMOUT 13 TO VGA LOLOUT 12 R3 51 VCC R2 51 C5 100pF C7 100pF 83MHz BUFFERED LO OUTPUTS LOGIC INPUT IFOUT- 16 VCC C10 1000pF 1.65nH 3 4 LNAOUTH LNAOUTL N.C. LNAINH
VCC
C16 1pF
MAX2327
MIXINH 20 MIXINL 19 RBIAS 18 R5 20k R4 2k L4 56nH L5 56nH C13 0.01F C12 1.5pF PCS1900 C11 1.5pF 400MHz TO VGA
C1 100pF
IFOUT+ 17
L3 560nH
FROM PCS PA
R6 7.5k C8 4.7pF
C9 1000pF FM
C3 100pF C4 100pF
AMPS LO
PCS1900 LO
10 LOHIN
LOHOUT 11
C6 22pF
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25
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
Pin Configurations (continued)
TOP VIEW
LNAOUTH 1 N.C. 2 RLNA 3 LNAINH 4 N.C. 5 SHDN 6 LIN 7 GAIN 8 N.C. 9 LOHIN 10 20 MIXINH 19 N.C. 18 RBIAS 17 CDMA+ N.C. 1 LNAOUTL 2 RLNA 3 MODEOUT 4 LNAINL 5 SHDN 6 LIN 7 GAIN 8 LOLIN 9 N.C. 10 20 N.C. 19 MIXINL 18 RBIAS 17 CDMA+
MAX2322
16 CDMA15 BUFFEN 14 VCC 13 LOX2 12 N.C. 11 LOHOUT
MAX2324
16 CDMA15 BUFFEN 14 VCC 13 FMOUT 12 LOLOUT 11 N.C.
TSSOP
TSSOP
LNAOUTH 1 LNAOUTL 2 N.C. 3 LNAINH 4 LNAINL 5 BAND 6 SHDN 7 MODE 8 LOLIN 9 LOHIN 10
20 MIXINH 19 MIXINL 18 RBIAS 17 IFOUT+
MAX2327
16 IFOUT15 BUFFEN 14 VCC 13 FMOUT 12 LOLOUT 11 LOHOUT
TSSOP
Chip Information
TRANSISTOR COUNT: 1315
26
______________________________________________________________________________________
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs
Package Information
TSSOP.EPS
MAX2320/21/22/24/26/27
______________________________________________________________________________________
27
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27
NOTES
28
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