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TCM29C18 Datasheet(PDF) 1 Page - Texas Instruments |
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TCM29C18 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 17 page TCM29C18, TCM29C19, TCM129C18, TCM129C19 ANALOG INTERFACE FOR DSP SCTS021D –AUGUST 1987 –REVISED OCTOBER 1996 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 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). They are ideal for use with the TMS320 DSP family members, particularly those featuring a serial port such as the TMS32020, TMS32011, and TMS320C25. Primary applications include: • Digital encryption systems • Digital voice-band data storage systems • Digital signal processing These devices are designed to perform encoding of analog input signals (A/D conversion) and decoding of digital PCM signals (D/A conversion). They are useful for implementation in the analog interface of a digital signal processing system. Both devices also provide band-pass filtering of the analog signals prior to encoding, and smoothing after decoding. The TCM29C18 and TCM29C19 are characterized for operation over the temperature range of 0 °C to 70°C. The TCM129C18 and TCM129C19 are characterized for operation over the temperature range of –40 °C to 85°C. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Copyright © 1996, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VBB PWRO + PWRO – PDN DCLKR PCM IN FSR/TSRE DGTL GND VCC GSX ANLG IN ANLG GND TSX/DCLKX PCM OUT FSX/TSXE CLK DW OR N PACKAGE (TOP VIEW) FEATURES TABLE Number of Pins: 16 Fixed Mode: 2.048 MHz (TCM29C18, TCM129C18), 1.536 MHz (TCM29C19, TCM129C19) Coding Law: µ-Law Variable Mode: 64 kHz to 2.048 MHz 8-Bit Resolution 12-Bit Dynamic Range |
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