Overview

The Conexant®SCXV.92, SCXV.34, and SCXV.32bis modems are worldwide operational modem device sets for embedded applications that support modulations up to V.92, V.34, and V.32bis, respectively (refer to Table 1-1). All modems also support V.44/V.42bis/MNP 5 data compression for greater data throughput, V.42 LAPM/MNP2-4 error correction protocol for increased data integrity and reliability.

Features

• Modulations and protocols

− ITU-T V.92

♦ Modem-on-Hold (MOH)

♦ Quick connect (QC)

♦ PCM upstream

− V.90/V.34/V.32bis/V.32

− V.22bis/V.22/V.23/V.21

− V.23 reverse, V.23 half-duplex

− Bell 212A/Bell 103

− V.29 FastPOS

− V22bis fast connect

− V.80 Synchronous Access Mode

• Data compression

− V.44/V.42bis/MNP5

• Error correction

− V.42/MNP 4/MNP 2

• Call Waiting (CW) detection

• Type I and Type II Caller ID (CID) decoding

• DTE/host interface

− Serial DTE interface

− Parallel 16550 UART-compatible host interface (38-pin version)

− Direct Mode

− Synchronous Mode

− Asynchronous Mode

• No external memory required

• Sixty-three embedded and upgradeable country profiles

• Serial NVRAM interface for optional permanent country profile storage (38-pin

version)

• Embedded AT commands

• Full-duplex Voice Pass-Through Mode

− Mu-Law, A-Law (serial and parallel host interface)

− 14-bit PCM (parallel host interface only)

• SmartDAA

− Extension pick-up detection

− Digital line protection

− Line reversal detection

− Line-in-use detection

− Remote hang-up detection

− Worldwide compliance

• Selectable 28.224 MHz or 27.000 MHz frequency of operation

• Low power and voltage

− Single +3.3V supply

− Low power consumption mode

− +3.3V I/O level

• Compact, robust board design

− Small, low-profile modem packages

− SmartDAA and DIB technologies

− Reference design supports 5KV isolation

Applications

• Set top boxes

• Point-of-Sale terminals

• ATM machines

• Metering terminals

• Video game consoles

• Internet appliances