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參數(shù)資料
| 型號(hào)： | KA8512D |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | COMPANDOR |
| 中文描述： | COMPANDOR |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 132K |
| 代理商： | KA8512D |
KA8512 COMPANDOR
PIN CONFIGURATION
PIN DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
KA8512
V
REF
EPI
ERC
EO
EMUTE
CMUTE
GND
CPI+
V
C C
CO
AGIC
CRC
CPI-
ALC
Pin No
Symbol
Description
1
V
REF
It is a voltage reference (V
REF
=1V) used for supplying a constant voltage
to the compressor and expander of compandor.
2
EPI
It is SUM AMP input terminal of expander. The voice signal recoverd after
the demodulation waveform from the receiver passed through the 2’nd order
low pass filter enters this terminal.
3
ERC
This terminal is used for converting waveform from the full wave rectifier to
DC element at the rectifier block of expander
(R X C = 22msec)
4
EO
It is an output terminal of expander, which a regenerated voice signal
comes out.
5
EMUTE
It is an expander mute terminal of compandor and the final mute block
of an expander located next to the receiver terminal. It blocks the data sig-
nal of MICOM being transmitted to an user, and is connected to the RX
mute terminal of MICOM.
Expanding is executed if this terminal is high, and expander mute is exe-
cuted if it is low.
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相關(guān)代理商/技術(shù)參數(shù) |
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