Toshiba - TC9457F

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Contents

TOSHIBA TC9457F TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC9457F Firmware Built In Digital Servo The TC9467F is a firmware incorporating CD digital servo system In addition to an LCD LED driver 4 channel 6 bit AD converters and 2 wire 3 wire serial interface it has a buzzer function interrupt function and 8 bit timer counter The CPU allows selection of the operating clock from three types of crystal oscillators 16 9344 MHz 4 5 MHz and 75 kHz making interfacing with a CD easy The CD digital servo incorporates various functions and circuits required for CD systems These include sync separation protection and interpolation EFM demodulation error correction digital equalizer for servoing and a servo control circuit Furthermore ...