參數(shù)資料
型號: MSM7524
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: DTMF Transceiver(雙音多頻收發(fā)器)
中文描述: 雙音多頻收發(fā)器(雙音多頻收發(fā)器)
文件頁數(shù): 1/21頁
文件大小: 140K
代理商: MSM7524
Semiconductor
MSM7524
1/21
GENERAL DESCRIPTION
The MSM7524 is the single chip DTMF transceiver –generator/receiver– with the call progress
tone generator/detector and the special tone –1300 Hz in the first version, possible to be
modified– detector.
Each function block can be controlled by an external MCU via 4-bit processor interface.
The chip operates with +5 V single supply with low power consumption, and is suitable for
the telephone terminal equipment.
FEATURES
Power supply voltage : +5 V
±
10%
Low power consumption
Operating mode : 8 mA Typ.
Power down mode : 10
m
A Typ.
4-bit processor interface
Dynamic range of DTMF receiver : 40 dB
Low signal distortion output from DTMF generator
Call progress tone detector
Call progress tone generator : 350/400/440/480 Hz
Special tone detector: 1300 Hz
±
20 Hz (for FAX)
3.58 MHz crystal oscillator circuit on chip
Package :
32-pin plastic SSOP
(SSOP32-P-430-1.00–K)
: 330 to 640 Hz
(Product name : MSM7524GS-K)
DTMF Transceiver
E2A0024-16-X1
This version: Jan. 1998
Previous version: Nov. 1996
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