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 control

                * Mute control

                * Reference voltage circuit ( 1/2 VCC AMP )

• Gain adjustable of audio output

• Minimum number of external parts required

• Recommand operation supply voltage range : 5.0 ~ 12.0V