CV211-2A_07 WJCI [WJ Communication. Inc.], CV211-2A_07 Datasheet - Page 2

• Manufacturer Part Number: CV211-2A_07
• Description: UMTS/WiMax-band Dual-Branch Downconverter
• Manufacturer: WJCI [WJ Communication. Inc.]

INPUT
INPUT
RF 1
GND
BIAS
GND
GND
RF 2
N/C
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”.
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: [phone] • e-mail: [e-mail] • Web site: www.wj.com
1
2
3
4
5
6
7
RF
RF
28
8
27
9
IF
IF
CV211-2A
UMTS/WiMax-band Dual-Branch Downconverter
26
10
25
11
IF Amp 1
IF Amp 2
LO Driver Amp
24
12
Device Architecture / Application Circuit Information
23
13
Frequency (MHz)
22
14
R8 (ohms)
C17 (pF)
L7 (nH)
L4 (nH)
21
20
19
18
17
16
15
BIAS
GND
N/C
GND
LO
GND
N/C
LO Amp / MMIC Mixer
* The 2
470
470
IF Amplifier
4.7
of the MCM to be 380 mA.
40
24
CV211-2A
Stage
Typical 2.1 GHz Downconverter Performance Chain Analysis (Each Branch)
nd
430
240
branch includes another mixer and IF amplifier, which increases the total current consumption
4.7
50
15
IF Amplifier Matching
150
330
3.3
75
22
Gain
(dB)
18.7
-8.7
100
150
330
2.2
10
Cumulative Performance
WiMax Operation: There is no change to the application circuit for
2.5 GHz to 2.7 GHz operation.
External Diplexer:
products.
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.
(dBm)
Input
P1dB
4.6
20
125
120
330
8.2
2.2
Printed Circuit Board Material:
.014” FR-4, 4 layers, .062” total thickness
(dBm)
130
120
330
Input
6.8
2.2
IP3
35
23
The mixer performs the diplexing internally for the
155
100
330
5.6
2.2
The Communications Edge
(dB)
Specifications and information are subject to change without notice
NF
9.0
2.1
This is only used with the cellular-band CV
180
330
4.7
2.2
82
Current
(mA)
380*
150
80
210
220
3.3
2.2
82
Gain
(dB)
10.0
10.0
-8.7
Product Information
240
220
3.9
2.2
56
Cumulative Performance
(dBm)
Input
P1dB
20.0
12.5
12.5
Page 2 of 9 June 2007
(dBm)
Input
IP3
35
30
30
TM
(dB)
NF
11
11
9