The Communications Edge TM
CV211-2A
UMTS/WiMax-band Dual-Branch Downconverter
Product Information
Product Features
• High dynamic range downconverter
Product Description
Functional Diagram
The CV211-2A is a dual-channel high-linearity down-
with integrated LO and IF amplifiers converter designed to meet the demanding performance,
28
27
24
23
22
26
25
functionality, and cost goals of current and next generation
mobile infrastructure basestations. It provides high
dynamic range performance in a low profile surface-mount
leadless package that measures 6 x 6 mm square.
RF 1
INPUT
IF
• Dual channels for diversity
1
2
3
4
5
6
7
BIAS
GND
GND
21
20
19
18
17
16
15
RF
GND
BIAS
GND
GND
• +30 dBm Input IP3
IF Amp 1
• +12.5 dBm Input P1dB
• RF: 1900 – 2700 MHz
• IF: 65 – 300 MHz
GND
LO
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.
LO Driver Amp
IF Amp 2
GND
GND
GND
• +5V Single supply operation
• Pb-free 6mm 28-pin QFN package
• Low-side LO configuration
RF 2
INPUT
IF
RF
8
9
12
13
14
10
11
Typical applications include frequency downconversion
used in W-CDMA 3G and WiMax mobile base
transceiver stations.
• Common footprint with other
PCS/cellular versions
Top View
Specifications (1)
Parameters
Units
MHz
MHz
MHz
%
Min
Typ
1900 – 2200
1600 – 2135
65 – 300
7.5
Max
Min
Typ
Max Comments
RF Frequency Range
LO Frequency Range
IF Frequency Range
% Bandwidth around IF center frequency
IF Test Frequency
2500 – 2700
2200 – 2565
See note 2
See note 3
135 – 300
12
MHz
dB
240
10
155
10
SSB Conversion Gain
Gain Drift over Temp (-40 to 85 °C)
Input IP3
8
12
8
12
Temp = 25 °C
Referenced to +25 °C
See note 4
dB
-1.5
+25
+33
+1.5
-1.5
+17
+33
+1.5
0.6
+30
+37
+12.5
11
0.6
+22
+37
+7.0
12
dBm
dBm
dBm
dB
Input IP2
See note 4
Input 1 dB Compression Point
Noise Figure
See note 4
See note 5
LO Input Drive Level
LO-RF Isolation
dBm
dB
-2.5
+2.5
-2.5
+2.5
0
0
PLO = 0 dBm
PLO = 0 dBm
12
9
LO-IF Isolation
dB
26
17
Branch-Branch Isolation
Return Loss: RF Port
Return Loss: LO Port
Return Loss: IF Port
Operating Supply Voltage
Supply Current
dB
44
40
dB
15
14
dB
18
12
dB
14
10
V
+5
+5
mA
°C / W
°C
320
475
27
320
475
27
380
380
Thermal Resistance
Junction Temperature
160
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
Ordering Information
Parameter
Rating
Part No.
Description
UMTS/WiMax-band Dual-Branch Dwncvtr.
(lead-free/RoHS-compliant 6x6mm QFN package)
Operating Case Temperature
Storage Temperature
DC Voltage
-40 to +85 °C
-55 to +150 °C
+5.5 V
CV211-2AF
CV211-2APCB75 Fully Assembled Eval. Board, IF = 75MHz
CV211-2APCB240 Fully Assembled Eval. Board, IF = 240MHz
Junction Temperature +220 °C
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 9 June 2007
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