AF121 - DTMF Bandpass Filters

National Semiconductor

Datasheet Details

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

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

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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Published: Sep 25, 2017 |