TCM29C18 Datasheet (Texas Instruments)

TCM29C18, PCM codecs

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).

They are ideal for use with th

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,

TCM29C18 Features

* TABLE Number of Pins: 16 Coding Law: µ-Law Variable Mode: 64 kHz to 2.048 MHz Fixed Mode: 2.048 MHz (TCM29C18, TCM129C18), 1.536 MHz (TCM29C19, TCM129C19) 8-Bit Resolution 12-Bit Dynamic Range Primary applications include:

* Digital encryption systems

* Digital voice-band data stora