AF121 DTMF Bandpass Filters

National Semiconductor

Description

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

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Datasheet Specifications

Part number: AF121
Manufacturer: National Semiconductor
File Size: 128.64 KB
Datasheet: AF121-NationalSemiconductor.pdf
Description: DTMF Bandpass Filters

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 interna

AF121 Distributors

📁 Related Datasheet

AF1210 AF1210A AF1210B AF1218 AF1202 AF1202A

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AF121 DTMF Bandpass Filters National Semiconductor

National Semiconductor AF121-like datasheet