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參數(shù)資料
| 型號(hào)： | RF2312PCBA |
| 廠商： | RF Micro Devices, Inc. |
| 英文描述： | LINEAR GENERAL PURPOSE AMPLIFIER |
| 中文描述： | 線性通用放大器 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大小： | 274K |
| 代理商： | RF2312PCBA |
3-6
RF2312
Rev C2 010813
3
L
A
Application S chematic
5 MHz to 50 MHz Reverse Path
Application S chematic
10dB Gain
1
2
3
4
8
7
6
5
RF OUT
RF IN
V
CC
NOTE 1:
Optional resistor R
can be used to maintain the correct bias level at higher supply voltages. This is used to
increase output capability or linearity for signals with high crest factors.
10 nF
10 nF
10
μ
H
30
100 nF
100 nF
R
S
1 - 2 k
1
2
3
4
8
7
6
5
RF OUT
RF IN
R5 is used to maintain the correct bias level at higher supply voltages and is also required in this configuration. The RC network of R2
and C3 should be kept physically as short as possible. R2 can be adjusted as required to improve the impedance matching. R6 and
R7 reduce the typical gain by increasing the emitter resistance. L1 should be at least 200
reactive at the lowest operating
frequency. C1 and C2 should be less than 10
at the lowest operating frequency. C4 and C5 improve gain flatness.
V
CC
= 9 - 12 V
C1
220 pF
R5
1 - 2 k
C3
10 nF
R2
470
R6
7.5
R7
7.5
C2
220 pF
L1
330 nH
R1 = 21 - 30
C4
TBD
C5
TBD
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