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AC’97 2.1 FEATURES

Variable Sample Rate Audio

Multiple Codec Configuration Options

External Audio Power-Down Control

AC’97 FEATURES

AC’97 2.2 Compliant

Greater than 90 dB Dynamic Range

Stereo Headphone Amplifier

Multibit Σ-Δ Converter Architecture for Improved S/N

Ratio Greater than 90 dB

16-Bit Stereo Full-Duplex Codec

Four Analog Line-Level Stereo Inputs for:

LINE-IN, CD, VIDEO, and AUX

Two Analog Line-Level Mono Inputs for Speakerphone

and PC BEEP

Mono MIC Input w/Built-In 20 dB Preamp, Switchable

from Two External Sources

High-Quality CD Input with Ground Sense

Stereo Line Level Outputs

Mono Output for Speakerphone or Internal Speaker

Power Management Support

48-Terminal LQFP Package

ENHANCED FEATURES

20-Bit SPDIF Output w/32 kHz, 44.1 kHz, and 48 kHz

Symbol Rates

Full Duplex Variable Sample Rates from 7040 Hz to

48 kHz with 1 Hz Resolution

Jack Sense Pins Provide Automatic Output Switching

Software-Enabled VREFOUT Output for Microphones and

External Power Amp

Split Power Supplies (3.3 V Digital/5 V Analog)

Mobile Low-Power Mixer Mode

Extended 6-Bit Master Volume Control

Extended 6-Bit Headphone Volume Control

Digital Audio Mixer Mode

Phat™ Stereo 3D Stereo Enhancement