CX93021

Description

Conexant's CX93021 Serial Modem supports V.92 analog data modem operation and 14.4 kbps fax modem operation. In addition, the modem supports remote TAM and speakerphone, as well as V.44/V.42bis/MNP 5 data compression for greater data throughput and V.42 LAPM/MNP2-4 error correction protocol for increased data integrity and reliability. The device set consists of a CX93021 Serial Modem device in a 36-pin Quad Flat-No Lead (QFN), a CX20548 SmartDAA^® 4 Line Side Device (LSD) in a 16-pin QFN, and a CX20452 Codec in a 24-pin QFN. The CX93021 device set is also available that does not include the CX20452 Codec and does not support speakerphone. The CX93021 has a serial interface and codec interface for connection to the optional CX20452 Codec for speakerphone applications. The CX93021 modem device integrates a MCU, a DSP, internal RAM, internal ROM, and a SmartDAA System Side Device (SSD) onto a 36-pin QFN.