AF122 Datasheet - National Semiconductor

DTMF Bandpass Filters

AF122 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

AF122 General Description

The AF121 and AF122 are 6th order elliptic bandpass filters designed for use with digital DTMF detectors. These filters are compatible with tone detector circuits such as the Rockwell CRC8030 and the Mostek MK5102 DTMF digital receivers. The filters provide 40 dB separation between the high and low .

AF122 Datasheet (128.64 KB)

AF122 Datasheet Preview — Preview of AF122 PDF

Datasheet Details

Part number:

AF122

Manufacturer:

National Semiconductor

File Size:

128.64 KB

Description:

Dtmf bandpass filters.

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AF122 DTMF Bandpass Filters National Semiconductor

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AF122 Features

AF122 General Description

Datasheet Details

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Description:

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