WJ Company CV211-2 Datasheet
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CV211-2
UMTS-band Dual-Branch Downconverter
Product Features
• High dynamic range downconverter
with integrated LO driver and IF
amplifiers
• Dual channels for diversity
• +27 dBm Input IP3
• +12 dBm Input P1dB
• 11.5 dB Noise Figure
• RF: 1920 - 1980 MHz
• IF: 150 - 300 MHz
• Low-side LO downconverter
• Single supply operation (+5 V)
• 6 x 6 mm QFN SMT package
Actual Size
CV
The Communications Edge TM
Preliminary Information
Product Description
The CV211-2 is a dual-channel high-linearity
downconverter designed to meet the
erformance, functionality, and cost goals of
current and next generation mobile infrastructure
basestations.
It is ideally suited for high dynamic range
receiver front ends using diversity receive
channels. The module is implemented in reliable
GaAs MESFET technology and requires only a
small 6x6 mm footprint.
Typical applications include frequenc
downconversion used in W-CDMA / IMT2000,
UMTS 2.5G and 3G mobile base transceiver
stations.
Functional Diagram
23
25
27
RF
RF
8
9
IF
IF amp
LO driver amp
IF amp
IF
11 13
Top View
Vcc
+
1
7
21
17
Specifications1
Parameters Units Minimum Typical Maximum Comments
20
10
+27
+32
+12
11.5
0
9
30
35
14
14
14
+5
380
1980
1830
300
12
∆f
12.5
+2.5
= 1 MHz @ RF
PLO = 0 dBm
PLO = 0 dBm
= 0 dBm / tone
in
+5.25
460
RF Frequency Range MHz 1920
LO Frequency Range MHz 1620
IF Frequency Range MHz 150
IF Bandwidth %
SSB Conversion Gain dB 8
Input IP3 dBm
Input IP2 dBm
Input 1 dB Compression Point dBm
Noise Figure dB
LO Input Drive Level dBm -2.5
LO-RF Isolation dB
LO-IF Isolation dB
Branch-Branch Isolation dB
Return Loss: RF Port dB
Return Loss: LO Port dB
Return Loss: IF Port dB
Operating Supply Voltage V +4.75
Supply Current mA
1
Specifications when using application specific circuit with a low side LO = 0 dBm in a downconverting application at 25°C.
Absolute Maximum Rating2 Ordering Information
Parameters Rating Part No. Description
Operating Case Temperature
-40° to +85 °C
Storage Temperature -65° to +100 °C
Maximum Junction Temperature +150 °C
2
Operation of this device above any of these parameters may cause permanent damage.
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
CV211-2 UMTS-band Dual-Branch Downconverter
Specifications and information are subject to change without notice
This document contains information on a new product.
May 2002
The Communications Edge TM
CV211-2
UMTS-band Dual-Branch Downconverter
Application Circuit
Note 1:
All components are of size 0603 or 0402 unless otherwise noted.
DNP represents: Do Not Place.
Preliminary Information
Assembly Layout
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
Pin FUNCTION Pin FUNCTION
1 Channel 1 RF Input 15 N/C
2 GND 16 GND
3 +5 V 17 LO input
4 GND 18 GND
5 N/C 19 N/C
6 GND 20 GND
7 Channel 2 RF Input 21 +5 V
8 GND 22 GND
9 Channel 2 IF Mixer Output 23 Channel 1 IF Amp Output / +5 V
10 GND 24 GND
11 Channel 2 IF Amp Input 25 Channel 1 IF Amp Input
12 GND 26 GND
13 Channel 2 IF Amp Output / +5 V 27 Channel 1 IF Mixer Output
14 GND 28 GND
Functional Pin Layout
Specifications and information are subject to change without notice
This document contains information on a new product.
May 2002
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