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參數(shù)資料
| 型號： | RF2376PCBA |
| 廠商： | RF Micro Devices, Inc. |
| 英文描述： | CELLULAR TDMA/CDMA LINEAR VARIABLE GAIN AMPLIFIER |
| 中文描述： | 胞時(shí)分多址/碼分多址線性可變增益放大器 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 112K |
| 代理商： | RF2376PCBA |
Preliminary
4-45
RF2376
Rev A2 010829
4
G
A
Applic ation S chematic
Pin
1
Function
RF OUT
Description
RF output pin. This pin is DC coupled and requires V
CC
through a bias
inductor sized accordingly to provide a high pass transformation with a
series capacitor.
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
Analog gain control pin. This pin controls the gain of the IC. Minimum
gain occurs at V
GC
<0.4V and maximum gain is achieved with
V
GC
=2.0V. 50dB of linear gain control with little variation of input P
1dB
is available.
RF input pin. This pin is AC coupled.
Interface Schematic
2
GND
3
GC
4
5
RF IN
GND
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
Power supply. This pin should be connected to a regulated supply and
requires a bypass capacitor. Voltage is supplied through this pin to the
first stage collector; this voltage also controls the bias. Gain may be
tuned by adjusting the value of the feed inductor.
6
VCC
RF IN
4
5
6
ATTEN
3
2
1
Note orientation of
package in this schematic.
2.7 pF
GC
4.7 nH
47 nF
VCC
RF OUT
12 nH
47 nH
VCC
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