cv221-2a WJ Communications, Inc., cv221-2a Datasheet

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cv221-2a

Manufacturer Part Number
cv221-2a
Description
1.9-2.4 Ghz Dual-branch Downconverter
Manufacturer
WJ Communications, Inc.
Datasheet

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Product Features
Specifications
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
4. Assumes the supply voltage = +5 V. IIP3 is measured with Δf = 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 R1 resistor can be modified for the CV221-2A to draw less current. Changing it from 13 to 18Ω is expected to have the converter draw 17mA less current so that the converter will draw about 300mA
Absolute Maximum Rating
Operation of this device above any of these parameters may cause permanent damage.
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com, www.TriQuint.com
Parameters
RF Frequency Range
LO Frequency Range
IF Frequency Range
% Bandwidth around IF center
frequency
IF Test Frequency
SSB Conversion Gain
Gain Drift over Temp (-40 to 85
°C)
Input IP3
Input 1 dB Compression Point
Noise Figure
LO Input Drive Level
LO-RF Isolation
LO-IF Isolation
RF-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
Parameter
Operating Case Temperature
Storage Temperature
DC Voltage
Junction Temperature
High dynamic range downconverter
with integrated LO and IF amplifiers
Dual channels for diversity
+28 dBm Input IP3
+11.5 dBm Input P1dB
RF: 1900 – 2700 MHz
IF: 65 – 300 MHz
+5V Single supply operation
RoHS-compliant / Pb-free
6x6mm 28-pin QFN package
Low-side LO configuration
the total ±7.5% bandwidth. ie. with a center frequency of 240 MHz, the specifications are valid from 240 ± 18 MHz.
typically under LO drive, while degrading the IIP3 performance by 0.5 dB.
CV221-2A
1.9 – 2.7 GHz Dual-Branch Downconverter
(1)
Units
°C / W
MHz
MHz
MHz
MHz
dBm
dBm
dBm
Rating
-40 to +85 °C
-55 to +150 °C
+5.5 V
+220 °C
mA
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
°C
%
V
The CV221-2A is a dual-channel high-linearity down-
converter designed to meet the demanding performance,
functionality, and cost goals of current and next generation
mobile infrastructure basestations and repeaters.
provides high dynamic range performance in a low profile
RoHS-compliant/lead-free surface-mount leadless package
that measures 6 x 6 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 3G W-CDMA and WiMax basestation
transceiver or repeater applications.
Min
+24
-2.5
6.5
Product Description
1900 – 2400
1600 – 2335
65 – 300
+11.5
Typ
±7.5
±0.6
240
+28
315
9.2
11
12
26
25
45
14
14
13
+5
0
Ordering Information
Max
Part No.
CV221-2AF
CV221-2APCB240 Fully Assembled Eval. Board, IF = 240MHz
10.5
+2.5
330
160
34
Min
+17
-2.5
5.4
Specifications and information are subject to change without notice
2500 – 2700
2200 – 2565
135 – 300
Description
1.9-2.7GHz Dual-Branch Downconverter
(lead-free/RoHS-compliant 6x6mm QFN package)
Typ
±0.6
+8.0
±12
+22
155
315
8.4
13
26
25
40
12
14
10
+5
0
9
It
INPUT
Functional Diagram
INPUT
GND
BIAS
GND
GND
GND
RF 1
RF 2
Max Comments
+2.5
330
160
9.9
1
2
3
4
5
6
7
34
RF
RF
28
8
27
9
See note 2
See note 3
Temp = 25 °C
Referenced to +25 °C
See note 4
See note 4
See note 5
P
P
See note 6
See note 6
IF
IF
LO
LO
26
10
= 0 dBm
= 0 dBm
25
11
Page 1 of 5 August 2007
IF Amp 1
IF Amp 2
LO Driver Amp
24
12
23
13
22
14
21
20
19
18
17
16
15
BIAS
GND
GND
GND
LO
GND
GND

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cv221-2a Summary of contents

Page 1

... Assumes LO injection noise is filtered at the thermal noise floor, -174 dBm/Hz, at the RF, IF, and Image frequencies. 6. The R1 resistor can be modified for the CV221-2A to draw less current. Changing it from 13 to 18Ω is expected to have the converter draw 17mA less current so that the converter will draw about 300mA typically under LO drive, while degrading the IIP3 performance by 0 ...

Page 2

... CV221-2A: 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. ...

Page 3

... Application Circuit 240 MHz (CV221-2APCB240) Notes: 1. The R1 resistor can be modified for the CV221-2A to draw less current. Changing it from 13 to 18Ω is expected to have the converter draw 17mA less current so that the converter will draw about 300mA typically under LO drive, while degrading the IIP3 performance by 0.5 dB. 2. ...

Page 4

... CV221-2A 1.9 – 2.7 GHz Dual-Branch Downconverter Typical Downconversion Performance Plots Performance using the circuitry on the CV221-2APCB240 Evaluation Board Conversion Loss vs RF Frequency vs Temperature dBm 240 MHz, low-side 1800 1900 R-I Isolation vs RF Frequency -40 °C +25 °C +85 °C ...

Page 5

... CV221-2A 1.9 – 2.7 GHz Dual-Branch Downconverter CV221-2AF Mechanical Information This package is lead-free/RoHS-compliant. The plating material on the pins is annealed matte tin over copper compatible with both lead-free (maximum 260 °C reflow temperature) and leaded (maximum 245 °C reflow temperature) soldering processes. Outline Drawing Mounting Configuration / Land Pattern WJ Communications, Inc • ...

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