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參數(shù)資料
| 型號(hào)： | μPC1658G |
| 廠商： | NEC Corp. |
| 英文描述： | Low Noise, High Frequncy Si MMIC Amplifier(低噪聲高頻率放大器) |
| 中文描述： | 低噪聲，高硅Frequncy MMIC放大器（低噪聲高頻率放大器） |
| 文件頁(yè)數(shù)： | 2/12頁(yè) |
| 文件大?。?/td> | 73K |
| 代理商： | ΜPC1658G |
Data Sheet P11120EJ3V0DS00
2
μ
PC1658G
PIN CONNECTIONS
PIN EXPLANATION
Pin No.
Pin Name
Function and Applications
Internal Equivalent Circuit
1
GND
Ground pin. This pin should be connected to
system ground with minimum inductance.
Ground pattern on the board should be formed
as possible. All the ground pins must be
connected together with wide ground pattern to
decrease impedance difference.
2
Test Point
Test Point pin. The collector current of Q
2
and
Q
3
can be varied by connecting an appropriate
external resistance between this pin and GND
or by shorting this pin to GND. By increasing
the collector current of Q
3
, the output level
improves and the IC can operate as a low-
distortion amplifier.
3
Output
Signal output pin. This pin must be coupled to
signal source with capacitor for DC cut.
4
V
CC
Power supply pin. This pin should be externally
equipped with bypass capacitor to minimize its
impedance.
5
Test Point
By connecting this pin to the power supply
through an appropriate external resistance or by
shorting this pin directly to the power supply,
the gain can be adjustable (when using pin 2,
short the pin 5 to the power supply).
6
Input
Signal input pin. Through negative feedback
from output pin with an external circuit, the IC
operates as a wideband amplifier.
7
8
Bypass
Emitter bypass pins of Q
1
. Bypass these pins
to GND with a capacitor.
Q1
Q3
Q2
R4
R3
R1
6
7
8
Input
Bypass
Bypass
R2
R5
R6
R8
R7
3
2
1
Output
Test point
GND
5 Test point
4 V
CC
Pin No.
Pin Name
1
GND
2
Test Point
3
Output
4
V
CC
5
Test Point
6
Input
7
Bypass
8
Bypass
8
7
6
5
1
2
3
(Top View)
4
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