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LSIs for Digital Signal Processing Based on a PCM Standard Format
Two large-scale integrated circuits (LSI) and one integrated circuit (IC) have been developed for pulse-code-modulated (PCM) digital signal processing based on a PCM standard format. These two LSIs and one IC can provide the same processing capabilities as about 500 conventional logic ICs, thus allowing much more compact dimensions for digital signal processing. The LSI MN6601 is employed for recording the PCM digital signal: it takes the analog-to-digital converted digital data, adds the error-detection and error-correction codes, and outputs them as video data. The LSI MN6602 is used during playback to reconstruct the PCM digital signal, carry out error correction, and provide this as serial data to the digital-to-analog converter. The IC AN6860 is used for the time-base generator and other accessory circuits for the analog-to-digital and the digital-to-analog converters.:
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