[Silicon Laboratories]

Description
The Si306x is an integrated direct access arrangement (DAA) with a programmable line interface to meet global telephone line interface requirements. Available in a 16-pin small outline package, it eliminates the need for an analog front end (AFE), an isolation transformer, relays, opto-isolators, and a 2- to 4-wire hybrid. The Si306x dramatically reduces the number of discrete components and cost required to achieve compliance with global regulatory requirements. The Si306x interfaces directly to a Silicon Laboratories integrated DAA system-side module.

Features
Complete DAA includes the following:
■ 80 dB dynamic range TX/RX paths to support up to V.92 modem speeds
■ Programmable line interface
    ● AC termination
    ● DC termination
    ● Ring detect threshold
    ● Ringer impedance
■ Integrated codec and 2- to 4-wire analog hybrid
■ Integrated ring detector
■ Pulse dialing support
■ Billing tone detection
■ Overload detection
■ > 5000 V isolation
■ Proprietary isolation interface to integrated DAA module
■ Line voltage monitor
■ Loop current monitor
■ Caller ID support
■ Low-profile SOIC available in leadfree/ROHS-compliant packages

Applications
■ V.92 soft modems
■ PDAs
■ Set-top boxes
■ Fax machines
■ POS terminals
■ Multi-function Printers