TP508

10 to 12 WATT SINGLE and DUAL OUTPUT DC-DC CONVERTERS

TP5089

DTMF (TOUCH-TONE) Generator; ■ 3.5V–10V operation when generating tones\n■ 2V operation of keyscan and MUTE logic\n■ Static sensing of key closures or logic inputs\n■ On-chip 3.579545 MHz crystal-controlled oscillator\n■ Output amplitudes proportional to supply voltage\n■ High group pre-emphasis\n■ Low harmonic distortion\n■ Open emitter-follower low-impedance output\n■ SINGLE TONE INHIBIT pin;

General Description\nThe TP5089 is a low threshold voltage, field-implanted, metal gate CMOS integrated circuit. It interfaces directly to a standard telephone keypad and generates all dual tone multi-frequency pairs required in tone-dialing systems. The tone synthesizers are locked to an on-chip reference oscillator using an inexpensive 3.579545 MHz crystal for high tone accuracy. The crystal and an output load resistor are the only external components required for tone generation. A MUTE OUT logic signal, which changes state when any key is depressed, is also provided.

TP5080_300W

TPTP5080大功率驱动芯片及模块;

TOPIC

TP5088

TP5088 DTMF Generator for Binary Data;

TP5088

TP5088 DTMF Generator for Binary Data

TP5088N

TP5088 DTMF Generator for Binary Data

TP5088WM

TP5088 DTMF Generator for Binary Data

TP5089

TP5089 DTMF (TOUCH-TONE) Generator

TP5089N

TP5089 DTMF (TOUCH-TONE) Generator