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ST70235A - ASCOTTM DMT TRANSCEIVER

General Description

The ST70235A is the DMT modem and ATM framer of the STMicroelectronics ASCOT™ chipset.

When coupled with ST70134 analog front-end and an external controller running dedicated firmware, the product fulfills ANSI T1.413 "Issue 2" DMT ADSL specification.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ST70235A ASCOTTM DMT TRANSCEIVER PRELIMINARY DATA s DMT MODEM FOR CPE ADSL, COMPATIBLE WITH THE FOLLOWING STANDARDS: - ANSI T1.413 ISSUE 2 - ITU-T G.992.1 (G.DMT) - ITU-T G.992.2 (G.LITE) 1 & 2) OR BITSTREAM INTERFACE s SUPPORTS EITHER ATM (UTOPIA LEVEL s 16 BIT MULTIPLEXED MICROPROCESSOR INTERFACE (LITTLE AND BIG ENDIAN COMPATIBILITY) s ANALOG FRONT END MANAGEMENT s DUAL LATENCY INTERLEAVED PATHS: FAST AND s ATM’S PHY LAYER: CELL PROCESSING (CELL DELINEATION, CELL INSERTION, HEC) s ADSL’S OVERHEAD MANAGEMENT s REED SOLOMON ENCODE/DECODE s TRELLIS ENCODE/DECODE (VITERBI) s DMT MAPPING / DEMAPPING OVER 256 CARRIERS GENERAL DESCRIPTION The ST70235A is the DMT modem and ATM framer of the STMicroelectronics ASCOT™ chipset.