The Communications Edge TM
CV211-2
UMTS-band Dual-Branch Downconverter
Product Information
Product Features
Product Description
Functional Diagram
• High dynamic range downconverter
The CV211-2 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
surface-mount leadless package that measures 6 x 6 mm
square.
with integrated LO and IF amplifiers
28
27
26
24
23
22
25
RF 1
INPUT
IF
• Dual channels for diversity
• +30 dBm Input IP3
• +12.5 dBm Input P1dB
• RF: 1900 – 2200 MHz
1
2
3
4
5
6
7
BIAS
GND
N/C
21
20
19
18
17
16
15
RF
GND
BIAS
GND
N/C
IF Amp 1
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
• IF: 150 – 300 MHz
GND
GND
N/C
• Single supply operation (+5 V)
• Pb-free 6mm 28-pin QFN package
• Low-side LO configuration
RF 2
INPUT
IF
RF
8
9
10
12
13
14
11
Typical applications include frequency downconversion
used in W-CDMA 2.5G and 3G mobile base transceiver
stations.
• Common footprint with other
PCS/UMTS/cellular versions
Top View
Specifications (1)
Parameters
Units
MHz
MHz
MHz
%
Min
Typ
1900 – 2200
1600 – 2050
Max
Comments
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° C to 85° C)
Input IP3
150 – 300
±7.5
240
10
±0.6
+30
+37
+12.5
11
See note 2
See note 3
MHz
dB
dB
dBm
dBm
dBm
dB
8
12
+1.5
Temp = 25° C
Referenced to +25° C
See note 4
See note 4
See note 4
-1.5
+25
+33
Input IP2
Input 1 dB Compression Point
Noise Figure
See note 5
LO Input Drive Level
LO-RF Isolation
LO-IF Isolation
dBm
dB
dB
-2.5
+2.5
0
12
26
PLO = 0 dBm
PLO = 0 dBm
Branch-Branch Isolation
Return Loss: RF Port
Return Loss: LO Port
Return Loss: IF Port
Operating Supply Voltage
Supply Current
dB
dB
dB
dB
44
15
18
14
+5
380
V
mA
°C / W
°C
320
475
27
160
Thermal Resistance
Junction Temperature
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.
Ordering Information
Absolute Maximum Rating
Part No.
CV211-2
Description
Parameter
Rating
UMTS-band Dual-Branch Downconverter
Operating Case Temperature
Storage Temperature
DC Voltage
-40° to +85° C
-55° to +150° C
+5.5 V
(leaded QFN Pkg)
UMTS-band Dual-Branch Downconverter
CV211-2F
(lead-free/RoHS-compliant QFN Pkg)
Junction Temperature
+220 °C
CV211-2PCB240 Fully-Assembled Application 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
September 2004
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