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\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

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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