Part number:
IN91531N
Manufacturer:
ETC
File Size:
39.42 KB
Description:
Parallel input tone/pulse dialer high-performance silicon-gate cmos.
Datasheet Details
Part number:
IN91531N
Manufacturer:
ETC
File Size:
39.42 KB
Description:
Parallel input tone/pulse dialer high-performance silicon-gate cmos.
IN91531N, PARALLEL INPUT TONE/PULSE DIALER HIGH-PERFORMANCE SILICON-GATE CMOS
IL91531 PARALLEL INPUT TONE/PULSE DIALER HIGH-PERFORMANCE SILICON-GATE CMOS The IN91531N provides a 4-bit data input and a handshaking signal to serve as microcomputer interfaces.
Under microcomputer control the IN91531N generates both a DTMF signal and a pulse output for telephone dialing.
All necessary dual-tone frequencies and dial pulse outputs are derived from the widely used TV crystal standard, providing high accuracy and stability.
The required sinusoidal waveform for individual tones is
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