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Si2457 Datasheet Isomodem

Manufacturer: Skyworks Solutions

Overview: Si2457/34/15/04 V.90, V.34, V. 32 BIS, V.22BIS I SO MODEM® WITH GLOBAL D A.

General Description

The ISOmodem® family of products is a plete modem ranging in speed from 56,000 bps to 2400 bps.

Offered as a chipset with the Si2457, Si2434, Si2415, or Si2404 system-side device and the Si3018/10 line-side device, the ISOmodem utilizes Skyworks Solutions’ patented direct access arrangement (DAA) technology to provide a programmable telephone line interface with an unparalleled level of integration.

These pact solutions eliminate the need for a separate DSP, modem controller, codec, transformer, relay, opto-isolators, clocking crystal, and 2-4 wire hybrid.

Key Features

  • This data sheet applies to Si2457/34/15/04 Revision D.
  • Data modem formats.
  • ITU-T, Bell.
  • 300 bps up to 56 kbps.
  • V.21,V.22, V.29 Fast Connect.
  • V.44, V.42, V.42bis, MNP2-5.
  • Automatic rate negotiation.
  • Type I and II caller ID decode.
  • No external ROM or RAM required.
  • UART, SPI, or parallel interface.
  • Flexible clock options.
  • Low-cost 32.768 kHz oscillator.
  • 4.915 MHz oscillator.
  • 27 MHz clock input.
  • Integrated DAA.
  • Over 60.

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