SLWS040A - JANUARY 1998
TI and QCombo are registered trademarks of Texas Instruments, Inc.
The TCM38C17IDL QCombo is a 4-channel single-chip PCM combo (pulse-code-modulated CODEC with voice-band filtering) device. It performs the transmit encoding (A/D conversion)
and receive decoding (D/A conversion), as well as the transmit and receive filtering functions required to meet CCITT G.711 and G.714 specifications in a PCM system. Each channel provides all the functions required to interface a full-duplex, 4-line voice telephone circuit with a TDM (time-division-multiplexed) system. The TCM38C17IDL is specifically designed for fixed-data-rate applications and is intended to replace four TCM29C13-type devices.
Primary applications include digital transmission and switching of T1/E1 carrier, PABX (private automatic branch exchange), and central office telephone systems and subscriber line concentrators. The device serves as the analog termination of a PCM line or trunk to the POTS (plain old telephone system) local-loop line.
Other applications include any PCM digital-audio interface such as voice-band data storage systems and many digital signal processing applications that can benefit from the reduced footprint of a quad codec configuration and single-rail operation. Dynamic range and excellent idle-channel noise performance are maintained using the TI advanced 4Vt process technologies.
The TCM38C17IDL is available in a 48-pin plastic DL SSOP (shrink small-outline package) and is characterized for operation from -40°C to 85°C.
View more information about generic part numbers:TCM38C17
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