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AF122 - DTMF Bandpass Filters

Product Overview

National Semiconductor

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AF122 DTMF Bandpass Filters by National Semiconductor - Datasheet Preview — Datasheet preview – AF122

Datasheet Details

Part number	AF122
Manufacturer	National Semiconductor
File Size	128.64 KB
Description	DTMF Bandpass Filters
Datasheet	AF122 Datasheet
Note	This datasheet PDF includes multiple part numbers: AF122, AF121. Please refer to the document for exact specifications by model.
Additional preview pages of the AF122 datasheet.

Product details

Description

The AF121 and AF122 are 6th order elliptic bandpass filters designed for use with digital DTMF detectors.

Features

Compatible with Rockwell CRC8030 and Mostek MK5102.
Gain o±0.5 dB.
Ripple 2 dB peak to peak.
Input Impedance 175 kn min.
Power Supply ±5V to ±18V Connection Diagram Dual-In-Line Package INPUT VTOP VIEW GND Unspecified pins are for internal use only and should not be used for external connection. Order Number AF121-1CJ, AF121-2CJ AF122-1CJ, AF122-2CJ 14-40 Absolute Maximum Ra.

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Other Datasheets by National Semiconductor

AF120 - Generalized Impedance Converter
AF121 - DTMF Bandpass Filters
AF100 - Universal Active Filter
AF101 - High Band Splitter Filter
AF102 - Dial Tone Reject Filter
AF103 - Low Band Splitter

Published: Sep 25, 2017 |