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參數(shù)資料
| 型號： | KA8512 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | COMPANDOR |
| 中文描述： | COMPANDOR |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 132K |
| 代理商： | KA8512 |
KA8512 COMPANDOR
PIN DESCRIPTION
(Continued)
Pin No
Symbol
Description
6
CMUTE
It is compressor mute terminal of a compandor.
Mute block is used to avoid duplication of data transmission from MICOM
(Between the base and hand set) with the voice signal.
It is connected to the TX mute terminal of MICOM.
Compressing is executed if the terminal is high, and compressor mute is
executed if it is low.
7
GND
It is ground terminal.
8
CPI+
It is a MIC AMP non-inverting input terminal of compressor, and is used
as an input terminal for voice signal.
9
CPI-
It is a MIC AMP inverting input terminal of compressor, and is used for
adjusting the negative feedback loop gain.
(In application, gain is about 5)
10
CRC
This terminal is used for converting waveform from the full wave rectifier
to DC element at the rectifier block of compressor.
(R X C = 22msec)
11
AGIC
This terminal is used for bypassing an AC element at the feed-back loop
which comes from the SUM AMP block of compressor. A capacitor should
be connected between this terminal and GND.
12
CO
It is a compressor output terminal of compandor, and is connected to the
modulation input terminal of transmitter.
13
ALC
It is a reference voltage input terminal of ALC (Automatic Level Control).
ALC circuit may be turned off according to the ALC reference voltage, ma-
gnitude of output voltage may be limited if it is used for adjusting THD of
output voltage of compressor to less than 3% or to limit the frequency of
TX in case the input is higher than a certain level.
14
V
CC
It is supply voltage terminal.
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相關(guān)代理商/技術(shù)參數(shù) |
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| KA8512D | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:COMPANDOR |
| KA8513B | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FM IF RECEIVER |
| KA8513B/C | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:INTRODUCTION |
| KA8513BD | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FM IF RECEIVER |
| KA8514 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FM IF RECEIVER WITH RSSI |
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