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PRELIMINARY DATA SHEET
MOS INTEGRATED CIRCUIT
µPD9611
FOUR-CHANNEL PCM CODEC
The µPD9611 incorporates 4-channel A-law/µ-law PCM CODECs compliant with ITU-T Recommendation G.711/ G.714 and is suitable for applications such as PBX analog subscriber line circuits. Its gain setting circuit allows transmit/receive gain to be set for 4 channels independently by externally inputting digital signals.
FEATURES
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Single-chip CMOS monolithic LSI ITU-T Recommendation G.711/G.714 compliant Four-channel PCM CODECs integrated on a single chip Compatible with A-law and µ-law Digital gain setting for each channel • Transmit : +7.5 to –8.0 dB (0.5 dB step) • Receive : 0 to –15.5 dB (0.