75T203 Datasheet 5V Low Power DTMF Receiver

Manufacturer: TDK Corporation

Download the 75T203 datasheet PDF. This datasheet also includes the 75T202 variant, as both parts are published together in a single manufacturer document.

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75T203 5v low power dtmf receiver by TDK Corporation - Datasheet Preview — Note: The manufacturer provides a single datasheet file (75T202_TDK.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	75T203
Manufacturer	TDK Corporation
File Size	72.93 KB
Description	5V Low Power DTMF Receiver
Datasheet	75T203 Datasheet

General Description

w The 75T202 and 75T203 are complete Dual-tone Multifrequency (DTMF) receivers detecting a selectable group of 12 or 16 standard digits.

No front-end pre-filtering is needed.

The only externally required components are an inexpensive 3.58 MHz television “colorburs” crystal (for frequency reference) and a bias resistor.

Overview

DESCRIPTION w The 75T202 and 75T203 are complete Dual-tone Multifrequency (DTMF) receivers detecting a selectable group of 12 or 16 standard digits.

No front-end pre-filtering is needed.

Key Features

Central office quality NO front-end band-splitting filters required Single, low-tolerance, 5-volt supply Detects either 12 or 16 standard DTMF digits Uses inexpensive 3.579545 MHz crystal for reference Excellent speech immunity Output in either 4-bit hexadecimal code or binary coded 2-of-8 18-pin DIP package for high system density Synchronous or handshake interface Three-state outputs E.

More Datasheets from TDK Corporation

Part Number	Description
75T202	5V Low Power DTMF Receiver
75T204	5V Low-Power Subscriber DTMF Receiver
75T2089	DTMF Transceivers
75T2090	DTMF Transceivers
75T2091	DTMF Transceivers