DTMF Receiver

Features Complete receiver in an 18-pin package Excellent performance CMOS, single 5 volt operation Minimum board area Central office quality Low power consumption Appilcations Telephone answer machine PABXs Central office Key system Remote control Remote data entry

DTMF RECEIVER

General Description\nThe HM 9270C/D is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high- and low-group filters and dial-tone rejection. Digital counting techniques are employed in the decoder • Complete receiver in an 18-pin package.\n• Excellent performance.\n• CMOS, single 5 volt operation.\n• Minimum board area.\n• Central office quality.\n• Low power consumption.\n• Power-Down mode (HM9270D only).\n• Inhibit-mode (HM9270D only).;

DTMF RECEIVER

General Description The HM 9270C/D is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high- and low-group filters and dial-tone rejection. Digital counting techniques are employed in the deco

DTMF RECEIVER

General Description The HM 9270C/D is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high- and low-group filters and dial-tone rejection. Digital counting techniques are employed in the deco

DTMF receiver

AUDIO FILTER INTRODUCTION

INTRODUCTION The KA9270 is a monolithic integrated circuit designed for audio filter. It is used in compact disc player, digital audio tape recorder, etc. FEATURES • Functions: * Buffer for impedence matching * Low pass filter * De - emphasis contro

TOSHIBA CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC

Σ-Δ MODULATION SYSTEM DA CONVERTER WITH A BUILT-IN DIGITAL ATTENUATOR DIGITAL FILTER TC9270F, TC9270N are a 2nd order Σ-Δ modulation system 1-bit DA converter with a built-in 8 times over sampling FIR type digital filter developed for digital audio equipment. As the de-empahsis filter has been i

ICs for Consumer Electronics

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