Product Details

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[ Silabs ]

Description

The Si3056 is an integrated direct access arrangement (DAA) with a programmable line interface to meet global telephone line requirements. Available in two 16-pin small outline packages, it eliminates the need for an analog front end (AFE), isolation transformer, relays, opto-isolators, and a 2- to 4-wire hybrid. The Si3056 dramatically reduces the number of discrete components and cost required to achieve compliance with global regulatory requirements. The Si3056 interfaces directly to standard modem DSPs.

Features

Complete DAA includes the following:
■ Programmable line interface
● AC termination
● DC termination
● Ring detect threshold
● Ringer impedance
■ 80 dB dynamic range TX/RX paths
■ Integrated codec and 2- to 4-wire hybrid
■ Integrated ring detector
■ Type I and II caller ID support
■ Line voltage monitor
■ Loop current monitor
■ Polarity reversal detection
■ Programmable digital gain
■ Clock generation
■ Pulse dialing support
■ Overload detection
■ 3.3 V power supply
■ Direct interface to DSPs
■ Serial interface control for up to eight devices
■ >5000 V isolation
■ Proprietary isolation technology
■ Parallel handset detection
■ +3.2 dBm TX/RX level mode
■ Programmable digital hybrid for nearend echo reduction
■ Low-profile SOIC packages
■ Lead-free/RoHS-compliant packages available

Applications

■ V.92 modems
■ Voice mail systems
■ Multi-function printers
■ Set-top boxes
■ Fax machines
■ Internet appliances
■ Personal digital assistants