Part Number : IL91531

Function : Parallel Input Tone/Pulse Dialer

Package : DIP 16 Pin Type

Maker : IK Semiconductor,  Integral

Pinouts :
IL91531 datasheet

Description :

The IL91531, 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 digitally synthesized on the chip, resulting in a waveform with very low total harmonic distortion.

Features : 

1. 4-bit parallel data input from microcomputer

2.  TTL compatible inputs and outputs

3. Uses TV crystal standard (3.58 MHz) to derive all frequencies, providing high accuracy and stability

4. Operating voltage: 2.5 to 5.5 Volts

5. Selectable M/B ratio


6. 10 PPS dial rate

Datasheet PDF Download :
IL91531 pdf

Others datasheet of same file : IL-91531, IL91531N
2021/10/02 14:28 2021/10/02 14:28