CD22204 5V Low Power Subscriber DTMF Receiver

Intersil Corporation

Description

CD22204 Data Sheet February 1999 File Number 1696.4 5V Low Power Subscriber DTMF Receiver The CD22204 complete dual tone multiple frequency (DTMF) re.
only.

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Datasheet Specifications

Part number: CD22204
Manufacturer: Intersil Corporation
File Size: 44.09 KB
Datasheet: CD22204_IntersilCorporation.pdf
Description: 5V Low Power Subscriber DTMF Receiver

Features

* No Front End Band Splitting Filters Required
* Single Low Tolerance 5V Supply
* Three-State Outputs for Microprocessor Based Systems
* Detects all 16 Standard DTMF Digits
* Uses Inexpensive 3.579545MHz Crystal
* Excellent Speech Immunity
* Ou

Applications

* and is not normally used in telephone dialing. UP TO 10 DEVICES Digital Inputs and Outputs All digital inputs and outputs of the DTMF receivers are represented by the schematic below. Only the “analog in” pin is different, and is described above. Care must be exercised not to exceed the voltage or

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CD22204 Low Power Subscriber DTMF Receiver Intersil Corporation

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