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參數資料
| 型號： | μPC3211GR |
| 廠商： | NEC Corp. |
| 英文描述： | AGC Amplifier For Digital CATV Reture Pass(自動增益控制（AGC）放大器) |
| 中文描述： | AGC放大器對于有線數字電視Reture通行證（自動增益控制（AGC）的放大器） |
| 文件頁數： | 3/16頁 |
| 文件大?。?/td> | 137K |
| 代理商： | ΜPC3211GR |
Data Sheet P13564EJ3V0DS00
3
μ
PC3211GR
PIN FUNCTIONS
Pin
No.
Pin
Name
Pin
Voltage
TYP. (V)
Function and Explanation
Equivalent Circuit
1
BY2
–
Non Connection pin.
This pin should be opened.
2
VAGC
0 to 3
Automatic gain control pin.
3
GND2A
0.0
4
GND2B
0.0
Ground pins of differential amplifier.
5
V
cc
1
9.0
Power supply pin of AGC amplifier
block.
6
V
cc
2
9.0
Power supply pin of differential
amplifier and output block.
7
GND2C
0.0
8
GND2D
0.0
9
GND2E
0.0
Ground pins of differential amplifier.
10
BY3
1.64
Bypass pin of regulator block.
11
OUT2
6.9
12
OUT1
6.9
Signal output pins.
This pins feature low-impedance
because of its emitter-follower output
port.
The pin that is not used should be
grounded through 50 ohm resistor.
6
REG
11
12
13
GND3
0.0
Ground pin of output block.
14
PA_BIAS
2.45
This is the pin to feed base bias in
case of connection to transistor as
power amplifier.
15
Psave
9.0
(+5 k
)
Power-save pin.
V
cc
GND : SLEEP
The 5 k
resistor should be
connected between 15 pin and V
cc
.
: ON
5
15
V
(9 V)
5 k
14
16
GND1B
0.0
18
GND1A
0.0
Ground pin of AGC amplifier block.
17
AGC IN2
2.43
19
AGC IN1
2.43
Signal input pin.
In the case of single input, 17 or 19
pin should be grounded through
capacitor.
5
17
19
20
BY1
–
Non Connection pin.
This pin should be opened.
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