CV221-2A
1.9 – 2.7 GHz Dual-Branch Downconverter
Typical Downconversion Performance Plots
Performance using the circuitry on the CV221-2APCB240 Evaluation Board
Conversion Loss vs RF Frequency vs Temperature
LO = 0 dBm, IF = 240 MHz, low-side LO
Input IP3 vs RF Frequency vs Temperature
LO = 0 dBm, IF = 240 MHz, low-side LO
Conversion Loss (dB)
10
Input IP3 (dBm)
32
30
28
26
24
-40 °C
+25 °C
+85 °C
9
8
7
6
-40 °C
+25 °C
+85 °C
5
1800
1900
2000
2100
2200
2300
22
1800
1900
2000
2100
2200
2300
RF Frequency (MHz)
R-I Isolation vs RF Frequency
L-R Isolation vs LO Frequency
Referenced with LO = 0 dBm
RF Frequency (MHz)
L-I Isolation vs LO Frequency
Referenced with LO = 0 dBm
30
L-R Isolation (dB)
R-I Isolation (dB)
25
20
15
10
5
-40 °C
+25 °C
+85 °C
L-I Isolation (dB)
35
30
25
20
15
-40 °C
+25 °C
+85 °C
25
20
15
10
-40 °C
+25 °C
+85 °C
5
1900
1950
2000
2050
2100
2150
2200
0
1500
1600
1700
1800
1900
2000
2100
10
1500
1600
1700
1800
1900
2000
2100
RF Frequency (MHz)
RF Return Loss vs RF Frequency
IF = 240 MHz, low-side LO at 0 dBm
LO Frequency (MHz)
LO Return Loss vs Frequency
LO Frequency (MHz)
IF Return Loss vs LO Frequency
IF = 240 MHz, LO = 0 dBm
0
LO Return Loss (dB)
RF Return Loss (dB)
0
-5
-10
-15
-20
-40 °C
+25 °C
+85 °C
IF Return Loss (dB)
0
-5
-10
-15
-20
-40 °C
+25 °C
+85 °C
-5
-10
-15
-20
-40 °C
+25 °C
+85 °C
-25
1800
1900
2000
2100
2200
2300
-25
1500
1600
1700
1800
1900
2000
2100
-25
1500
1600
1700
1800
1900
2000
2100
RF Frequency (MHz)
Input P1dB vs RF Frequency
IF = 240 MHz, low-side LO at 0 dBm
LO Frequency (MHz)
Noise Figure vs RF Frequency
IF = 240 MHz, low-side LO at 0 dBm
LO Frequency (MHz)
14
Input P1dB (dBm)
14
Noise Figure (dB)
12
10
8
6
-40 °C
+25 °C
+85 °C
12
10
8
6
-40 °C
+25 °C
+85 °C
4
1800
1900
2000
2100
2200
2300
4
1900
1950
2000
2050
2100
2150
2200
RF Frequency (MHz)
RF Frequency (MHz)
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 4 of 5 June 2007
WJCI [ WJ COMMUNICATION. INC. ]
