參數(shù)資料
型號: VG024
元件分類: 可變增益放大器
英文描述: Variable Gain Amplifiers
中文描述: 可變增益放大器
文件頁數(shù): 2/6頁
文件大小: 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
Temperature Compensation Application Circuit: 240 MHz
Bill of Materials
Ref. Des.
C1, C3, C5
C2, C4, C8
C6
C7
C9
L1, L2
L3
R1
R2
R3, R4, R5
R6
Roffset
Rslope
Description
1000 pF Chip Capacitor
0.01
μ
F Chip Capacitor
2.2
μ
F 1206 Chip Capacitor
0.47
μ
F 1206 Chip Capacitor
Do Not Load
220 nH 0805 Chip Inductor
47 nH 0805 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
Evaluation Board Layout
Functional Pin Layout
Pin
FUNCTION
1
Gain control pin
2
Interstage Match
3
4
RF Output / Bias
5
6
RF Input
7
Interstage Match
8
Interstage Match
The amplifier is biased through Pin 4 and should be connected directly into
a voltage regulator.
GND
GND
Circuit Board Material:
.014” FR-4, 4 layers
.062” total thickness
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