CV211-2AF 查看數據表（PDF） - WJ Communications => Triquint
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CV211-2AF Datasheet PDF : 9 Pages
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CV211-2A
UMTS/WiMax-band Dual-Branch Downconverter
The Communications Edge TM
Product Information
Device Architecture / Application Circuit Information
28 27 26 25 24 23 22
RF 1
INPUT
1
RF
IF
21 BIAS
GND 2
IF Amp 1
20 GND
BIAS 3
19 N/C
GND 4
18 GND
N/C 5
LO Driver Amp 17 LO
GND 6
RF 2 7
INPUT RF
8
IF Amp 2
16 GND
IF
15 N/C
9 10 11 12 13 14
Typical 2.1 GHz Downconverter Performance Chain Analysis (Each Branch)
Stage
Gain
(dB)
Input
P1dB
(dBm)
Input
IP3
(dBm)
Cumulative Performance
NF
(dB)
Current
(mA)
Gain
(dB)
Input
P1dB
(dBm)
Input
IP3
(dBm)
NF
(dB)
LO Amp / MMIC Mixer -8.7 20
35
9.0
80
-8.7 20.0
35
9
IF Amplifier
18.7 4.6
23
2.1
150
10.0 12.5
30
11
CV211-2A
Cumulative Performance
380* 10.0 12.5
30
11
* The 2nd branch includes another mixer and IF amplifier, which increases the total current consumption
of the MCM to be 380 mA.
Printed Circuit Board Material:
.014” FR-4, 4 layers, .062” total thickness
IF Amplifier Matching
Frequency (MHz) 40 50 75 100 125 130 155 180 210 240
L7 (nH)
470 430 150 150 120 120 100 82 82 56
C17 (pF)
24 15 22 10 8.2 6.8 5.6 4.7 3.3 3.9
R8 (ohms)
4.7 4.7 3.3 2.2 2.2 2.2 2.2 2.2 2.2 2.2
L4 (nH)
470 240 330 330 330 330 330 330 220 220
CV211-2A: 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”.
WiMax Operation: There is no change to the application circuit for
2.5 GHz to 2.7 GHz operation.
External Diplexer: This is only used with the cellular-band CV
products. The mixer performs the diplexing internally for the
CV211-2A; therefore the components shown in the diplexer section
should be not be loaded except for L3, L10, L7, and L11, which
should contain a 0 Ω jumper.
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 9 June 2007
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