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MSM7524 Datasheet, PDF (1/21 Pages) OKI electronic componets – DTMF Transceiver | |||
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E2A0024-16-X1
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MSM7524
This version: JManS. M19795824
Previous version: Nov. 1996
DTMF Transceiver
GENERAL DESCRIPTION
The MSM7524 is the single chip DTMF transceiver âgenerator/receiverâ with the call progress
tone generator/detector and the special tone â1300 Hz in the first version, possible to be
modifiedâ 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 mA Typ.
⢠4-bit processor interface
⢠Dynamic range of DTMF receiver : 40 dB
⢠Low signal distortion output from DTMF generator
⢠Call progress tone detector : 330 to 640 Hz
⢠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-430-1.00âK) (Product name : MSM7524GS-K)
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