DTMF (TOUCH-TONE) Generator

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 re ■ 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■ Op;

TP5089 DTMF (TOUCH-TONE) Generator

文件：119.91 Kbytes Page：6 Pages

TP5089 DTMF (TOUCH-TONE) Generator

文件：119.91 Kbytes Page：6 Pages

SUPERmini. SURFACE MOUNT NPN SILICON TRANSISTORS

DESCRIPTION: The CENTRAL SEMICONDUCTOR CMST5088, CMST5089 types are NPN silicon transistors manufactured by the epitaxial planar process, epoxy molded in a SUPERmini™ surface mount package, designed for applications requiring high gain and low noise. Marking Codes are 1QC, 1RC respectively.

NPN (LOW NOISE TRANSISTOR)

NPN EPITAXIAL SILICON TRANSISTOR LOW NOISE TRANSISOTR

丝印代码：1R；NPN General Purpose Amplifier

NPN General Purpose Amplifier This device is designed for low noise, high gain, general purpose amplifier applications at collector currents from 1µA to 50 mA.

NPN general purpose transistors

DESCRIPTION NPN transistor in a SC-70; SOT323 plastic package. FEATURES • Low current (max. 100 mA) • Low voltage (max. 30 V). APPLICATIONS • Low-noise input stages in audio equipment.