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CV210-2A
Product Features
* High dynamic range downconverter with integrated LO and IF amplifiers
The Communications Edge TM Product Information
Cellular-band Dual-Branch Downconverter
Product Description
The CV210-2A is a dual-channel high-linearity downconverter designed to meet the demanding performance, functionality, and cost goals of current and next generation mobile infrastructure basestations. It provides high dynamic range performance in a low profile leadfree/RoHS-compliant surface-mount leadless package that measures 6x6 mm square. It is ideally suited for high dynamic range receiver front ends using diversity receive channels. Functionality includes frequency conversion and IF amplification, while an integrated LO driver amplifier powers the passive mixer. The MCM is implemented with reliable and mature GaAs MESFET and InGaP HBT technology. Typical applications include frequency downconversion used in CDMA/GSM/TDMA, CDMA2000, W-CDMA, and EDGE 2.5G and 3G mobile base transceiver stations.
Functional Diagram
AMP1 INPUT IF1 OUTPUT 23 GND MIXER IF/RF1 GND 28 N/C 1 GND 2 BIAS 3 GND 4 N/C 5 GND 6 N/C 7 8 GND 9 MIXER IF/RF2 27 GND 26 25 24
* * * * * * * * *
Dual channels for diversity +29.5 dBm Input IP3 +12 dBm Input P1dB RF: 800 - 960 MHz IF: 200 - 250 MHz +5V Single supply operation Pb-free 6mm 28-pin QFN package Low-side LO configuration Common footprint with other PCS/UMTS/cellular versions
RF/IF IF Amp 1
GND 22 21 BIAS 20 GND 19 N/C 18 GND 17 LO 16 GND 15 N/C 14 GND
LPF
LO Driver Amp IF Amp 2
RF/IF
10 GND 11 AMP2 INPUT 12 GND 13 IF2 OUTPUT
Top View
Specifications (1)
Parameters
RF Frequency Range LO Frequency Range IF Center Frequency Range % Bandwidth around IF center frequency IF Test Frequency SSB Conversion Gain Gain Drift over Temp (-40 to 85 C) Input IP3 Input IP2 Input 1 dB Compression Point Noise Figure LO Input Drive Level LO-RF Isolation LO-IF Isolation Branch-Branch Isolation Return Loss: RF Port Return Loss: LO Port Return Loss: IF Port Operating Supply Voltage Supply Current Thermal Resistance Junction Temperature
Units
MHz MHz MHz % MHz dB dB dBm dBm dBm dB dBm dB dB dB dB dB dB V mA C / W C
Min
Typ
800 - 960 550 - 760 200 - 250 7.5 240 10 0.3 +29.5 +39 +12 10.2 0 18 32 45 20 20 12 +5 360
Max
Comments
See note 2 See note 3 12 1.5 Temp = 25 C Referenced to 25 C See note 4 See note 4 See note 4 See note 5 PLO = 0 dBm PLO = 0 dBm
8 -1.5 +25 +33
-2.5
+2.5
320
475 27 160
See note 6
1. Specifications when using the application specific circuit (shown on page 3) with a low side LO = 0 dBm and IF = 240 MHz in a downconverting application at 25 C. 2. IF matching components affect the center IF frequency. Proper component values for other IF center frequencies than shown can be provided by emailing to applications.engineering@wj.com. 3. The IF bandwidth of the converter is defined as 15% around any center frequency in its operating IF frequency range. The bandwidth is determined with external components. Specifications are valid around the total 7.5% bandwidth. ie. with a center frequency of 240 MHz, the specifications are valid from 240 18 MHz. 4. Assumes the supply voltage = +5 V. IIP3 is measured with f = 1 MHz with RFin = -5 dBm / tone. 5. Assumes LO injection noise is filtered at the thermal noise floor, -174 dBm/Hz, at the RF, IF, and Image frequencies. 6. The maximum junction temperature ensures a minimum MTTF rating of 1 million hours of usage.
Absolute Maximum Rating
Parameter
Operating Case Temperature Storage Temperature DC Voltage Junction Temperature -40 to +85 C -55 to +150 C +5.5 V +220 C
Rating
Ordering Information
Part No.
CV210-2AF CV210-2APCB240
Description
Cellular-band Dual-Branch Downconverter
(lead-free/RoHS-compliant 6x6mm QFN package)
Fully-Assembled Eval. Board, IF = 240MHz
Operation of this device above any of these parameters may cause permanent damage. Specifications and information are subject to change without notice. WJ Communications, Inc * Phone 1-800-WJ1-4401 * FAX: 408-577-6621 * e-mail: sales@wj.com * Web site: www.wj..com Page 1 of 6 March 2006
CV210-2A
AMP1 INPUT IF1 OUTPUT GND MIXER IF/RF1 GND 28 N/C 1 GND 2 BIAS 3 GND 4 N/C 5 GND 6 N/C 7 8 GND 9 MIXER IF/RF2 27 GND 26 25 24 23 GND 22 21 BIAS
The Communications Edge TM Product Information
Cellular-band Dual-Branch Downconverter
Device Architecture / Application Circuit Information
RF/IF IF Amp 1
Typical Downconverter Performance Chain Analysis (Each Branch)
20 GND 19 N/C 18 GND
Stage LO Amp / MMIC Mixer IF Amplifier CV210-2A
Gain (dB) -9 19
Input P1dB (dBm)
Input IP3 (dBm)
NF (dB)
Current (mA) 85 150 385*
Gain (dB)
LPF
LO Driver Amp IF Amp 2
17 LO 16 GND 15 N/C
11 30 9.3 2 22 1.8 Cumulative Performance
Cumulative Performance Input Input NF P1dB IP3 (dB) (dBm) (dBm) -9 11 30 9.3 10 8 27.5 11 10 +8 +27.5 11
RF/IF
10 GND 11 AMP2 INPUT 12 GND 13 IF2 OUTPUT 14 GND
* The 2nd branch includes another mixer and IF amplifier, which increases the total current consumption of the MCM to be 385 mA.
Printed Circuit Board Material: .014" FR-4, 4 layers, .062" total thickness
CV210-2A: The application circuit can be broken up into three main functions as denoted in the colored dotted areas above: RF/IF diplexing (blue), IF amplifier matching (green), and dc biasing (purple). There are various placeholders for chip components in the circuit schematic so that a common PCB can be used for all WJ dual-branch converters. Further details are given in the Application Note located on the website titled "CV2xx Series - PWB Design Guidelines". External Diplexer: In a downconversion application, the incoming RF signal impinges on the switching elements of the mixer; the interaction with these switches produces a signal at the IF frequency. The two signals (RF and IF) are directed to the appropriate ports by the external diplexer. A six-element diplexer is used in the circuit implementation.
IF Amplifier Matching: The IF amplifier requires matching elements to optimize the performance of the amplifier to the desired IF center frequency. Since IF bandwidths are typically on the order of 5 to 10%, a simple two element matching network, in the form of either a high-pass or low-pass filter structure, is sufficient to match the MMIC IF amplifier over these narrow bandwidths. Proper component values for other IF center frequencies can be provided by emailing to applications.engineering@wj.com. DC biasing: DC bias must be provided for the LO and IF amplifiers in the converter. R1 sets the operating current for the last stage of the LO amplifier and is chosen to optimize the mixer LO drive level. Proper RF chokes and bypass capacitors are chosen for proper amplifier biasing at the intended frequency of operation. The "+5 V" dc bias should be supplied directly from a voltage regulator.
Specifications and information are subject to change without notice.
WJ Communications, Inc * Phone 1-800-WJ1-4401 * FAX: 408-577-6621 * e-mail: sales@wj.com * Web site: www.wj..com
Page 2 of 6 March 2006
CV210-2A
The Communications Edge TM Product Information
Cellular-band Dual-Branch Downconverter
Application Circuit: IF = 240 MHz (CV210-2APCB240)
Bill of Materials
Ref. Desig. R1 R2, R3, R4 R6, R7 C1, C5, C10, C15 C2, C8 C3, C9 C4, C11 C6, C12, C14 C7, C13 C16, C17 L1 L2, L6 L3, L7 L4, L8 L5, L9 L10, L11 C19, C20, C21, C22 U1 Component 11.3 chip resistor 0 chip resistor 2.2 chip resistor 1000 pF chip capacitor 5.6 pF chip capacitor 12 pF chip capacitor 3.9 pF chip capacitor .01 F chip capacitor 100 pF chip capacitor 8.2 pF chip capacitor 120 nH chip inductor 12 nH chip inductor 33 nH chip inductor 56 nH chip inductor 220 nH chip inductor 15 nH chip inductor Do Not Place CV210-2A WJ Converter Size 0805 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 0805 0603 QFN
PCB Layout
Circuit Board Material: .014" FR-4, 4 layers, .062" total thickness
Specifications and information are subject to change without notice. WJ Communications, Inc * Phone 1-800-WJ1-4401 * FAX: 408-577-6621 * e-mail: sales@wj.com * Web site: www.wj..com Page 3 of 6 March 2006
CV210-2A
Conversion Gain vs IF Frequency
LO = 0 dBm, LO = 595 MHz, low-side LO
The Communications Edge TM Product Information
Cellular-band Dual-Branch Downconverter
CV210-2APCB240 Application Circuit Performance Plots
Input IP3 vs IF Frequency
LO = 0 dBm, LO = 595 MHz, low-side LO
Input IP2 vs IF Frequency
LO = 0 dBm, LO = 595 MHz, low-side LO
Conversion Gain (dB)
12 Input IP3 (dBm) 11 10 9 8 7 215
-40 C +25 C +85 C
34 32 30 28 26 24 265 215
-40 C +25 C +85 C
42 Input IP2 (dBm) 40 38 36 34 32 265 215
-40 C +25 C +85 C
225
235
245
255
225
235
245
255
225
235
245
255
265
IF Frequency (MHz)
Conversion Gain vs RF Frequency
25 C, IF = 240 MHz, low-side LO
IF Frequency (MHz)
Input IP3 vs RF Frequency
25 C, IF = 240 MHz, low-side LO
IF Frequency (MHz)
Input IP2 vs RF Frequency
25 C, IF = 240 MHz, low-side LO
Conversion Gain (dB)
12 Input IP3 (dBm) 11 10 9 8 7 800 825 850 875
LO = -2.5 dBm LO = 0 dBm LO = 2.5 dBm
34 32 30 28 26 24 800 825 850 875
LO = -2.5 dBm LO = 0 dBm LO = 2.5 dBm
44 Input IP2 (dBm) 42 40 38 36 34 800 825 850 875
LO = -2.5 dBm LO = 0 dBm LO = 2.5 dBm
900
925
900
925
900
925
RF Frequency (MHz)
Conversion Gain vs RF Frequency
LO = 0 dBm, IF = 240 MHz, low-side LO
RF Frequency (MHz)
Input IP3 vs RF Frequency
LO = 0 dBm, IF = 240 MHz, low-side LO
RF Frequency (MHz)
Input IP2 vs RF Frequency
LO = 0 dBm, IF = 240 MHz, low-side LO
Conversion Gain (dB)
12 Input IP3 (dBm) 11 10 9 8 7 800
-40 C +25 C +85 C
34 32 30 28 26 24 925 800
-40 C +25 C +85 C
42 Input IP2 (dBm) 40 38 36 34 32 925 800
-40 C +25 C +85 C
825
850
875
900
825
850
875
900
825
850
875
900
925
RF Frequency (MHz)
Conversion Gain vs RF Frequency
25 C, LO = 0 dBm, IF = 240 MHz, low-side LO
RF Frequency (MHz)
Input IP3 vs RF Frequency
25 C, LO = 0 dBm, IF = 240 MHz, low-side LO
RF Frequency (MHz)
Input IP2 vs RF Frequency
25 C, LO = 0 dBm, IF = 240 MHz, low-side LO
12 Conversion Gain (dB) Input IP3 (dBm) 11 10 9 8 7 800 825 850 875
34 32 30 28 26 24 800 825 850 875 Input IP2 (dBm)
42 40 38 36 34 32 800 825 850 875
Vdd = 4.9 V Vdd = 5.0 V Vdd = 5.1 V
900 925
Vdd = 4.9 V Vdd = 5.0 V Vdd = 5.1 V
900 925
Vdd = 4.9 V Vdd = 5.0 V Vdd = 5.1 V
900 925
RF Frequency (MHz)
RF Frequency (MHz)
RF Frequency (MHz)
Specifications and information are subject to change without notice. WJ Communications, Inc * Phone 1-800-WJ1-4401 * FAX: 408-577-6621 * e-mail: sales@wj.com * Web site: www.wj..com Page 4 of 6 March 2006
CV210-2A
L-R Isolation vs LO Frequency
Referenced with LO = 0 dBm
The Communications Edge TM Product Information
Cellular-band Dual-Branch Downconverter
CV210-2APCB240 Application Circuit Performance Plots (cont'd)
L-I Isolation vs LO Frequency
Referenced with LO = 0 dBm
Branch-Branch Isolation vs RF Frequency
25 C
30 L-R Isolation (dB) 25 20 15 10 5 500
-40 C +25 C +85 C
45 L-I Isolation (dB) Isolation (dB)
-40 C +25 C +85 C
50 40 30 20 10 0 750 800 825 850 875 900 925
40 35 30 25 20
550
600
650
700
750
500
550
600
650
700
LO Frequency (MHz)
RF Return Loss vs RF Frequency
25 C
LO Frequency (MHz)
IF Return Loss vs IF Frequency
25 C
RF Frequency (MHz)
LO Return Loss vs LO Frequency
25 C
0 Return Loss (dB) Return Loss (dB) 5 10 15 20 25 30 800 825 850 875 900 925
0 5 10 15 20 25 30 215 225 235 245 255 265 Return Loss (dB)
0 5 10 15 20 25 30 500 550 600 650 700 750
RF Frequency (MHz)
Noise Figure vs Temperature
RF = 835 MHz, IF = 240 MHz, LO = 0 dBm @595 MHz
IF Frequency (MHz)
Input P1dB vs Temperature
RF = 835 MHz, IF = 240 MHz, LO = 0 dBm @595 MHz
LO Frequency (MHz)
14 12 10 8 6 4 -40 -20 0 20 40 60 80
14 Input P1dB (dBm) 12 10 8 6 4 -40 -20 0 20 40 60 80
Noise Figure (dB)
Temperature (C)
Temperature (C)
Specifications and information are subject to change without notice. WJ Communications, Inc * Phone 1-800-WJ1-4401 * FAX: 408-577-6621 * e-mail: sales@wj.com * Web site: www.wj..com Page 5 of 6 March 2006
CV210-2A
The Communications Edge TM Product Information
Cellular-band Dual-Branch Downconverter
CV210-2AF Mechanical Information
This package is lead-free/RoHS-compliant. It is compatible with both lead-free (maximum 260C reflow temperature) and leaded (maximum 245C reflow temperature) soldering processes. The plating material on the pins is annealed matte tin over copper.
Outline Drawing
Product Marking
The component will be lasermarked with a "CV210-2AF" product label with an alphanumeric lot code on the top surface of the package. Tape and reel specifications for this part will be located on the website in the "Application Notes" section.
ESD / MSL Information
ESD Rating: Value: Test: Standard: ESD Rating: Value: Test: Standard: Class 1B Passes 500V to <1000V Human Body Model (HBM) JEDEC Standard JESD22-A114 Class III Passes 500V to <1000V Charged Device Model (CDM) JEDEC Standard JESD22-C101
MSL Rating: Level 2 at +260C convection reflow Standard: JEDEC Standard J-STD-020
Functional Pin Layout Mounting Configuration / Land Pattern
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 FUNCTION No Connect GND LO Amp Bias GND No Connect GND No Connect GND Channel 2 Mixer IF/RF Port (goes to diplexer) GND Channel 2 IF Amp Input GND Channel 2 IF Amp Output / Bias GND Pin 15 16 17 18 19 20 21 22 23 24 25 26 27 28 FUNCTION No Connect GND LO input GND No Connect GND +5 V GND Channel 1 IF Amp Output / Bias GND Channel 1 IF Amp Input GND Channel 2 Mixer IF/RF Port (goes to diplexer) GND
Specifications and information are subject to change without notice. WJ Communications, Inc * Phone 1-800-WJ1-4401 * FAX: 408-577-6621 * e-mail: sales@wj.com * Web site: www.wj..com Page 6 of 6 March 2006

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