TCM320AC54 MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER

SCTS043A - NOVEMBER 1994 - REVISED JULY 1996

features

Complete PCM Codec and Filtering System Includes:
- Transmit High-Pass and Low-Pass Filtering
- Receive Low-Pass Filter With (sin x)/x Correction
- Active RC Noise Filters
- u-Law Compatible Coder and Decoder
- Internal Precision Voltage Reference
- Serial I/O Interface
- Internal Autozero Circuitry
u-Law Coding
DTAD and DSP Interface Codec
±5-V Operation
Low Operating Power . . . 50 mW Typ
Power-Down Standby Mode . . . 3 mW Typ
Automatic Power Down
TTL- or CMOS-Compatible Digital Interface
Maximizes Line Interface Card Circuit Density

description

The TCM320AC54 is comprised of a single-chip PCM codec (pulse-code-modulated encoder and decoder) and PCM line filter. This device provides all the functions required to interface a full-duplex (2-wire) voice telephone circuit with a TDM (time-division-multiplexed) system. Primary applications include:

Line interface for digital transmission and switching of T1 carrier, PABX, and central office telephone systems
Subscriber line concentrators
Digital-encryption systems
Digital signal processing

The device is designed to perform the transmit encoding (A/D conversion) and receive decoding (D/A conversion) as well as the transmit and receive filtering functions in a PCM system. It is intended to be used at the analog termination of a PCM line or trunk. The device requires two transmit and receive master clocks that may be asynchronous (1.536 MHz, 1.544 MHz, or 2.048 MHz), transmit and receive data clocks that are synchronous with the master clock (but can vary from 64 kHz to 2.048 MHz), and transmit and receive frame-sync pulses. The TCM320AC54 provides the band-pass filtering of the analog signals prior to encoding and after decoding of voice and call progress tones.

The TCM320AC54 is characterized for operation from 0°C to 70°C.

Title: MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER
Product Family: LINE - CARD CODEC (COMBO)
Device Functionality: MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER , COMPLETE PCM CODEC AND FILTERING SYSTEM, U-LAW ENCODING, INTERNAL PRECISION VOLTAGE REFERENCE, SERIAL I/O INTERFACE, DTAD AND DSP INTERFACE CODEC, LOW POWER OPERATION , VCC SUPPLY VOLTAGE =
Orderable Devices: TCM320AC54CDW, TCM320AC54CN

View the complete PDF datasheet: scts043a.pdf (230 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:TCM320AC54

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