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1700 MHz to 2400 MHz GaAs Matched RF PA Predriver ADL5323
FEATURES
Internally matched to 50 input and output Internally biased Operating frequency: 1700 MHz to 2400 MHz Gain: 20 dB OIP3: 43 dBm P1 dB: 28 dBm Noise figure: 5 dB 3 mm x 3 mm LFCSP Power supply: 5 V
FUNCTIONAL BLOCK DIAGRAM
VCC 5 GND 6 GND 7 RFIN 8
BIAS CONTROL OUTPUT MATCH
4 RFOUT 3 GND 2 VCC 1 VCC
INPUT MATCH
ADL5323
APPLICATIONS
CDMA2000, WCDMA, and GSM base station transceivers and high power amplifiers
Figure 1.
GENERAL DESCRIPTION
The ADL5323 is a high linearity GaAs driver amplifier that is internally matched to 50 for operation in the 1700 MHz to 2400 MHz frequency range. The amplifier, which has a gain of 20 dB, has been specially designed for use in the output stage of a cellular base station radio or as an input preamplifier in a multicarrier base station power amplifier. Matching and biasing are all on-chip. The ADL5323 is available in a Pb-free, 3 mm x 3 mm, 8-lead LFCSP with an operating temperature of -40C to +85C.
-15 -20 -30 -40 -50
(dBm)
-60 -70 -80 -90 -100
RBW = 30kHz VBW = 300kHz SWT = 2s RF ATT = 10dB CH PWR = 0dBm ACP UP = -74.2dBc ACP LOW = -73.9dBc CENTER 2.14GHz 1.46848MHz/ SPAN 14.6848MHz
Figure 2. Single-Carrier WCDMA Spectral Plot @ 2140 MHz (No Noise Floor Correction, Test Model 1-64)
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 (c)2006 Analog Devices, Inc. All rights reserved.
06058-014
-110 -115
06058-001
ADL5323 TABLE OF CONTENTS
Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 Pin Configuration and Function Descriptions..............................5 Typical Performance Characteristics ..............................................6 Basic Connections .............................................................................8 WCDMA Driving Application ....................................................8 Evaluation Board ...............................................................................9 Outline Dimensions ....................................................................... 10 Ordering Guide .......................................................................... 10
REVISION HISTORY
7/06--Revision 0: Initial Version
Rev. 0 | Page 2 of 12
ADL5323 SPECIFICATIONS
VCC = 5 V, TA = 25C. Table 1.
Parameter FREQUENCY RANGE GAIN vs. Frequency vs. Temperature vs. Voltage vs. Frequency vs. Temperature vs. Voltage P1 dB vs. Frequency vs. Temperature vs. Voltage vs. Frequency vs. Temperature vs. Voltage NOISE FIGURE INPUT RETURN LOSS S11 OUTPUT RETURN LOSS S22 OIP3 vs. Frequency vs. Temperature vs. Voltage vs. Frequency vs. Temperature vs. Voltage POWER SUPPLY Supply Voltage Supply Current Operating Temperature Conditions Frequency = 1960 MHz 1930 MHz to 1990 MHz -40C to +85C 4.75 V to 5.25 V Frequency = 2140 MHz 2110 MHz to 2170 MHz -40C to +85C 4.75 V to 5.25 V Frequency = 1960 MHz 1930 MHz to 1990 MHz -40C to +85C 5 V, @ 5% (4.75 V to 5.25 V) Frequency = 2140 MHz 2110 MHz to 2170 MHz -40C to +85C 5 V, @ 5% (4.75 V to 5.25 V) Frequency = 1700 MHz to 2300 MHz Frequency = 1930 MHz to 2170 MHz Frequency = 1930 MHz to 2170 MHz Carrier spacing = 1 MHz, POUT = 5 dBm per carrier Frequency = 1960 MHz 1930 MHz to 1990 MHz -40C to +85C 4.75 V to 5.25 V Frequency = 2140 MHz 2110 MHz to 2170 MHz -40C to +85C 4.75 V to 5.25 V Min 1700 18 Typ 20.5 0.2 1.25 0.1 19.5 0.25 1.5 0.1 28 0.1 0.8 0.5 28 0.15 1.1 0.5 5 -15 -15 42.5 0.5 1 2 43.5 0.15 0.75 1.8 4.75 POUT = 5 dBm -40 5 320 5.25 +85 Max 2400 24 Unit MHz dB dB dB dB dB dB dB dB dBm dBm dBm dBm dBm dBm dBm dBm dB dB dB dBm dBm dBm dBm dBm dBm dBm dBm V mA C
17.5
21.8
27.3
27.3
Rev. 0 | Page 3 of 12
ADL5323 ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter Supply Voltage, VPOS Input Power (re: 50 ) Equivalent Voltage JC (Paddle Soldered) Maximum Junction Temperature Operating Temperature Range Storage Temperature Range Soldering Temperature Rating 6V 18 dBm 1.8 V rms 28.5C/W 150C -40C to +85C -65C to +150C 260C
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
Rev. 0 | Page 4 of 12
ADL5323 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
VCC 1 VCC 2 GND 3 RFOUT 4
PIN 1 INDICATOR
8 RFIN 7 GND 6 GND
06058-002
ADL5323
TOP VIEW (Not to Scale)
5 VCC
Figure 3. Pin Configuration
Table 3. Pin Function Descriptions
Pin No. 1, 2, 5 3, 6, 7 4 8 N/A Mnemonic VCC GND RFOUT RFIN EP Description Positive 5 V Supply Voltage. Bypass these three pins with independent power supply decoupling networks (100 pF, 10 nF, and 10 F). Device Ground. RF Output. Internally matched to 50 . RF Input. Internally matched to 50 . Exposed Paddle. Connect to ground plane via a low impedance path.
Table 4. S-Parameters
Frequency (GHz) 1.700 1.750 1.800 1.850 1.900 1.950 2.000 2.050 2.100 2.150 2.200 2.250 2.300 2.350 2.400 ADL5323 (1, 1) +0.223/-117.296 +0.221/-121.479 +0.213/-125.661 +0.199/-125.955 +0.178/-134.553 +0.148/-139.939 +0.109/-143.147 +0.062/-144.310 +0.013/-85.228 +0.065/-1.170 +0.137/-3.193 +0.213/-9.279 +0.288/-16.416 +0.359/-23.757 +0.423/-31.004 ADL5323 (1, 2) 0.001/46.748 0.001/42.216 8.631E-4/20.038 7.410E-4/8.703 +6.610E-4/-15.411 +6.107E-4/-49.029 +7.862E-4/-93.510 +9.845E-4/-106.413 +0.001/-137.342 +0.002/-152.839 +0.002/-165.020 0.002/178.599 0.003/168.309 0.003/156.456 0.003/145.888 ADL5323 (2, 1) 11.970/81.811 11.841/70.891 11.719/59.628 11.579/48.044 11.430/36.098 11.233/23.696 10.994/10.837 +10.677/-2.467 +10.282/-16.244 +9.786/-30.382 +9.178/-44.797 +8.460/-59.375 +7.657/-73.707 +6.820/-87.516 +6.002/-100.610 ADL5323 (2, 2) 0.329/131.623 0.284/126.121 0.237/119.974 0.187/112.389 0.138/101.953 0.092/85.095 0.058/47.650 +0.064/-8.136 +0.103/-38.076 +0.151/-52.943 +0.201/-62.896 +0.250/-70.697 +0.298/-77.549 +0.343/-83.655 +0.386/-89.478
Rev. 0 | Page 5 of 12
ADL5323 TYPICAL PERFORMANCE CHARACTERISTICS
23 22 21 20 TEMP = -40C TEMP = +25C TEMP = +85C
6.0 5.8 5.6 5.4
NF (dBm)
06058-003
GAIN (dB)
19 18 17 16 15 14 13 1700
5.2 5.0 4.8 4.6 4.4 4.2
1800
1900
2000
2100
2200
2300
2400
1800
1900
2000
2100
2200
2300
2400
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 4. Gain vs. Frequency, VCC = 5 V, TA = -40C, +25C, and +85C
29 TEMP = -40C 28 TEMP = +25C TEMP = +85C
Figure 7. Noise Figure vs. Frequency, VCC = 5 V, TA = 25C
29.0 28.5 28.0 27.5
P1dB (dBm)
VCC = 5.25V
VCC = 5V VCC = 4.75V
27
P1dB (dBm)
27.0 26.5 26.0 25.5
26
25
24
25.0
06058-004
1800
1900
2000
2100
2200
2300
2400
1800
1900
2000
2100
2200
2300
2400
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 5. P1 dB vs. Frequency, VCC = 5 V, TA = -40C, +25C, and +85C
44 TEMP = +25C 43
Figure 8. P1 dB vs. Frequency, VCC = 4.75 V, 5 V, and 5.25 V, TA = 25C
44 VCC = 5.25V
TEMP = +85C TEMP = -40C
OIP3 (dBm)
43 VCC = 5V
42
OIP3 (dBm)
42 VCC = 4.75V
41
41
40
40
39
39
06058-005
1800
1900
2000
2100
2200
2300
2400
1800
1900
2000
2100
2200
2300
2400
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 6. OIP3 vs. Frequency, VCC = 5 V, TA = -40C, +25C, and +85C
Figure 9. OIP3 vs. Frequency, VCC = 4. 75 V, 5 V, and 5.25 V, TA = 25C
Rev. 0 | Page 6 of 12
06058-008
38 1700
38 1700
06058-007
23 1700
24.5 1700
06058-006
4.0 1700
ADL5323
10 9 8 7 6 5 4 3 2 1
06058-009
06058-011
12
10
8
FREQUENCY
40 41 42 44 45 46
FREQUENCY
6
4
2
0 43 OIP3 (dBm)
0 40 41 42 43 OIP3 (dBm) 44 45 46
Figure 10. Distribution of OIP3 at 1990 MHz
-5 -10
Figure 12. Distribution of OIP3 at 2170 MHz
-15
ADL5323 [1, 1] (dB) ADL5323 [2, 2] (dB)
-20 S22 -25 S11 -30
-35 -40 1700
1800
1900
2000
2100
2200
2300
2400
FREQUENCY (MHz)
Figure 11. Input S11 and Output S22 Return Loss vs. Frequency
Rev. 0 | Page 7 of 12
06058-010
ADL5323 BASIC CONNECTIONS
Figure 16 shows the basic connections for operating the ADL5323. Each of the three power supply lines should be decoupled with 10 F, 10 nF, and 100 pF capacitors. Pin 3, Pin 6, Pin 7, and the exposed paddle under the device should all be connected to a low impedance ground plane. If multiple ground planes are being used, these should be stitched together with vias under the device to optimize thermal conduction. See the recommended land pattern in Figure 13 for more information.
-15 -20 -30 -40 -50
(dBm)
-60 -70 -80 -90 -100
RBW = 30kHz VBW = 300kHz SWT = 2s RF ATT = 10dB CH PWR = 0dBm ACP UP = -74.2dBc ACP LOW = -73.9dBc CENTER 2.14GHz 1.46848MHz/ SPAN 14.6848MHz
Figure 14. Spectrum of Single WCDMA Carrier Centered at 2140 MHz; Carrier Power = 0 dBm, ACPR = -74 dBc
06058-013
Figure 15 shows how ACP varies with output power level. Note that in this plot, the noise floor of the spectrum analyzer was factored out.
-55
ACP @ 5 MHz CARRIER OFFSET (dBc)
Figure 13. Recommended Land Pattern
WCDMA DRIVING APPLICATION
Figure 14 shows a plot of the spectrum of an ADL5323 driving a single carrier WCDMA signal (Test Model 1-64) at 0 dBm, centered at 2140 MHz. At 5 MHz offset, an adjacent channel power ratio of -74 was measured.
-60
-65
-70
-75
-10
-5
0
5
10
15
20
OUTPUT POWER (dBm)
Figure 15. WCDMA ACP vs. Output Power, Single Carrier, Test Model 1-64
C5 100pF RFOUT VCC C1 10F AGND C3 10nF AGND C2 100pF AGND
ADL5323
5 VCC 6 GND 7 GND 8 RFIN EP RFOUT GND VCC VCC 4 3 2 1
AGND
VCC C6 100pF AGND C9 100pF AGND C7 10nF AGND C10 10nF AGND C8 10F AGND VCC
06058-012
AGND C4 100pF RFIN
C11 10F AGND
Figure 16. Basic Connections
Rev. 0 | Page 8 of 12
06058-015
-80 -15
06058-014
-110 -115
ADL5323 EVALUATION BOARD
Figure 18 shows the schematic of the ADL5323 evaluation board. The board is powered by a single supply in the 4.75 V to 5.25 V range. The power supply is decoupled on each of the three power supply pins by 10 F, 10 nF, and 100 pF capacitors. See Table 5 for the exact evaluation board component values. Note that all three VCC pins (Pin 1, Pin 2, and Pin 5) should be independently bypassed as shown in Figure 18 for proper operation.
06058-016
Figure 17. Evaluation Board Component Side View
Table 5. Evaluation Board Components
Component DUT1 C1, C12, C16 C3, C11, C17 C2, C10, C18 C8, C9, C13, C14, R3 R2, R4 Function Driver amplifier Low frequency bypass capacitors Low frequency bypass capacitors High frequency bypass capacitors Open AC coupling capacitors Default Value ADL5323 10 F, 0603 10 nF, 0402 100 pF, 0402 Open , 0402 100 pF, 0402
R4 100pF RFOUT VCC C1 10F AGND C3 10nF AGND C2 100pF AGND C13 OPEN AGND C14 OPEN AGND
AGND R2 100pF RFIN C8 OPEN AGND C9 OPEN AGND
5 VCC 6 GND 7 GND 8 RFIN
ADL5322/ ADL5323
RFOUT GND VCC VCC DUT1 4 3 2 1
AGND
TP2 VCC
C10 100pF AGND R3 OPEN
C11 10nF AGND
C12 10F AGND TP1 SNS1 VCC
C18 100pF GND VCC VCC AGND
C17 10nF AGND
C16 10F AGND
AGND VCC
W1 AGND
06058-017
Figure 18. Evaluation Board Schematic
Rev. 0 | Page 9 of 12
ADL5323 OUTLINE DIMENSIONS
3.00 BSC SQ 0.60 MAX 0.50 0.40 0.30
PIN 1 INDICATOR
8
1
PIN 1 INDICATOR
TOP VIEW
2.75 BSC SQ 0.50 BSC
5 4
1.50 REF
1.89 1.74 1.59
0.90 MAX 0.85 NOM
12 MAX
0.70 MAX 0.65 TYP 0.05 MAX 0.01 NOM
1.60 1.45 1.30
SEATING PLANE
0.30 0.23 0.18
0.20 REF
Figure 19. 8-Lead Lead Frame Chip Scale Package [LFCSP_VD] 3 mm x 3 mm Body, Very Thin, Dual Lead (CP-8-2) Dimensions shown in millimeters
ORDERING GUIDE
Model ADL5323ACPZ-R7 1 ADL5323ACPZ-WP1 ADL5323-EVAL
1
Temperature Range -40C to +85C -40C to +85C
Package Description 8-Lead LFCSP_VD, 7" Tape and Reel 8-Lead LFCSP_VD, Waffle Pack Evaluation Board
Package Option CP-8-2 CP-8-2
Branding OR OR
Ordering Quantity 1500 50 1
Z = Pb-free part.
Rev. 0 | Page 10 of 12
ADL5323 NOTES
Rev. 0 | Page 11 of 12
ADL5323 NOTES
(c)2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06058-0-7/06(0)
Rev. 0 | Page 12 of 12

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