參數(shù)資料
型號(hào): VG024
元件分類: 可變?cè)鲆娣糯笃?/td>
英文描述: Variable Gain Amplifiers
中文描述: 可變?cè)鲆娣糯笃?/td>
文件頁數(shù): 4/6頁
文件大?。?/td> 308K
代理商: VG024
This document contains information on a new product.
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
August 2003
The Communications Edge
TM
VG024
Wide-band Variable Gain Amplifier
Product Information
Application Circuit: 2.2 GHz
Bill of Materials
Ref. Des.
C1, C5
C2, C10
C3
C4, C8
C6
C7
L1
L2
R1
R2
R3, R4, R5
R6
Roffset
Rslope
Description
22 pF Chip Capacitor
1.8 pF Chip Capacitor
1000 pF Chip Capacitor
0.01
μ
F Chip Capacitor
2.2
μ
F 1206 Chip Capacitor
0.47
μ
F 1206 Chip Capacitor
10 nH Chip Inductor
18 nH Chip Inductor
2.21 K
Chip Resistor
3.32 K
Chip Resistor
10.0 K
Chip Resistor
100
Chip Resistor
0603 chip Resistor
0603 chip Resistor
MMBT2222A Motorola
Transistor
VG024 Variable Gain Amplifier
LM2904 Dual Op Amp
Q1
U1
U2
S-Parameters
Attenuation Control Voltage =0 V, 25C
3
6
9
12
15
18
600
700
800
Frequency (MHz)
900
1000
1100
S
-20
-15
-10
-5
0
5
R
S-Parameters
0
1500
2
4
6
8
10
12
1700
1900
Frequency (MHz)
2100
2300
2500
S
-20
-15
-10
-5
0
5
Attenuation Control Voltage = 0 V, 25C
R
S21, S11, S22 vs Gain Control Voltage
Frequency = 800 MHz
-30
-20
-10
0
10
20
0
1
2
Vcontrol
3
4
5
M
0
3
6
9
12
15
P
OIP3 / P1dB vs. Normalized Gain
frequency = 900 MHz, Pout = +10 dBm, 25°C
15
20
25
30
35
40
-20
-15
-10
-5
0
Normalized Gain (dB)
M
P1dB
OIP
Normalized to the maximum gain level of 17
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