VG111
S21 vs. Frequency
Vctrl=0V (Minimum attenuation)
The Communications Edge
TM
Product Information
PCS/UMTS-band Variable Gain Amplifier
VG111-PCB1900 Application Circuit Performance (cont’d)
S11 vs. Frequency
Vctrl=0V (Minimum attenuation)
S22 vs. Frequency
Vctrl=0V (Minimum attenuation)
15
14
13
0
0
-40°C
-5
-10
+25°C
+85°C
-5
-10
-15
-20
-40°C
+25°C
+85°C
12
11
-15
-40°C
10
1700
1750
+25°C
1800
+85°C
-20
1850
1900
1950
2000
1700
1750
1800
1850
1900
1950
2000
1700
1750
1800
1850
1900
1950
2000
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
S21 vs. Frequency vs. Attenuation Setting
S11 vs. Frequency vs. Attenuation Setting
S22 vs. Frequency vs. Attenuation Setting
20
10
0
0 dB Atten
5 dB Atten
15 dB Atten
25 dB Atten
0
10 dB Atten
20 dB Atten
-5
-10
0
-10
0 dB Atten
5 dB Atten
20 dB Atten
10 dB Atten
25 dB Atten
-5
-10
-15
-20
-25
-30
0 dB Atten
10 dB Atten
20 dB Atten
5 dB Atten
15 dB Atten
25 dB Atten
-15
-20
-25
-30
2000
1700
1750
1800
1850
1900
1950
2000
Frequency (MHz)
P1dB vs. Frequency
Vctrl=0V (Minimum attenuation)
-20
1700
15 dB Atten
1750
1800
1850
1900
1950
1700
1750
1800
1850
1900
1950
2000
Frequency (MHz)
Frequency (MHz)
Noise Figure vs. Frequency
Vctrl=0V (Minimum attenuation)
26
24
22
20
18
10
8
6
4
2
-40°C
16
1880
+25°C
1920
+85°C
0
1960
2000
1700
1750
-40°C
1800
1850
+25°C
1900
+85°C
1950
2000
Frequency (MHz)
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 3 of 7
February 2006
WJCI [ WJ COMMUNICATION. INC. ]
