VG101
20
15
10
5
0
-5
-10
-15
-20
0
5
10
15
+25°C
-40°C
The Communications Edge
TM
Product Information
Cellular-band Variable Gain Amplifier
VG101-PCB Application Circuit Performance (cont’d)
Gain vs. Pin 5 Attn. Control Current
Normalized Gain vs. Pin 5 Control Current
Noise Figure vs. Frequency
Vctrl=0V (Minimum attenuation)
40
+85°C
35
30
25
20
15
10
5
0
+25°C
-40°C
+85°C
10
-40°C
8
6
4
2
0
+25°C
+85°C
20
25
0.1
1.0
10.0
100.0
700
750
800
850
900
950
1000
Pin 5 Attenuation Control Current (mA)
S21 vs. Frequency
Vctrl=0V (Minimum attenuation), +25 °C
Pin 5 Attenuation Control Current (mA)
S11, S22 vs. Frequency
Vctrl=0V (Minimum attenuation), +25 °C
Frequency (MHz)
P1dB vs. Frequency
Vctrl=0V (Minimum attenuation)
16
15
S 1 1 , S 2 2 (d B )
S 2 1 (d B )
14
13
12
11
700
0
26
S11
-5
-10
-15
-20
-25
700
S22
24
22
20
18
-40°C
16
750
800
850
900
950
1000
850
875
750
800
850
900
950
1000
+25°C
900
+85°C
925
950
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
S21 vs. Frequency vs. Control Voltage
S11 vs. Frequency vs. Control Voltage
S22 vs. Frequency vs. Control Voltage
20
10
S 2 1 (d B )
0
-10
-20
750
Vctrl=0V
Vctrl=2V
Vctrl=4V
Vctrl=1V
0
Vctrl=0V
Vctrl=1V
Vctrl=3V
Vctrl=4.5V
0
Vctrl=0V
Vctrl=1V
Vctrl=3V
Vctrl=4.5V
Vctrl=2V
Vctrl=4V
-5
S 1 1 (d B )
-10
-15
-20
-25
750
-5
S 2 2 (d B )
-10
-15
-20
-25
750
Vctrl=2V
Vctrl=4V
Vctrl=3V
Vctrl=4.5V
800
850
900
950
1000
800
850
900
950
1000
800
850
900
950
1000
Frequency (MHz)
Frequency (MHz)
Ictrl vs. Vpin5
3.0
2.5
V p in 5 (V )
Frequency (MHz)
Ictrl vs. Vctrl
Vctrl, Vpin5 vs. Ictrl
6
5
V c trl (V )
4
3
2
Vctrl vs Ictrl
1
0
0
5
10
Ictrl (mA)
15
20
V5 vs Ictrl
0.5
0.0
Ic trl (m A )
1.5
1.0
0.0
0.5
1.0
1.5
Vpin5 (V)
2.0
2.5
3.0
Ic trl (m A )
2.0
18
16
14
12
10
8
6
4
2
0
18
16
14
12
10
8
6
4
2
0
0
1
2
Vctrl (V)
3
4
5
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 5
June 2005
WJCI [ WJ COMMUNICATION. INC. ]
