LC73861 Datasheet (Sanyo Semicon Device)

LC73861, DTMF Receiver LSI

Number 1 2 3 4 5 6 7 8 Name INPUT OSCO OSCI VSS SD ACK EST VDD O I O O I/O I O I Description Input coupling capacitor required.

Biased internally to VDD/2.

An oscillating circuit is formed by connecting a 4.194304 MHz (LC73861) / 3.579545 MHz (LC73826) oscillator and a capacitor (if needed) between

LC73861 Features

* . 16-DTMF tone signal decoder . DTMF receiver with all necessary filters built-in . Dial tone filter . High-group bandpass filter . Low-group bandpass filter . Extended range . Serial datadynamic output . Microcontroller guard-time compatible . 4.5 to 5.5 V operating supply voltage range Specificat