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TCM29C18, TCM29C19, TCM129C18, TCM129C19 ANALOG INTERFACE FOR DSP
SCTS021D –AUGUST 1987 –REVISED OCTOBER 1996
D Reliable Silicon-Gate CMOS Technology D Low Power Consumption
– Operating Mode . . . 80 mW – Power-Down Mode . . . 5 mW
D µ-Law Coding D Excellent Power-Supply Rejection Ratio
Over Frequency Range of 0 Hz to 50 kHz
D No External Components Needed for
Sample, Hold, and Autozero Functions
D Precision Internal Voltage Reference D Single Chip Contains A/D, D/A, and
Associated Filters
description
The TCM29C18, TCM29C19, TCM129C18, and TCM129C19 are low-cost single-chip PCM codecs (pulse-code-modulated encoders and decoders) and PCM line filters. These devices incorporate both the A/D and D/A functions, an antialiasing filter (A/D), and a smoothing filter (D/A).