AC’97 2.1 FEATURES

Variable Sample Rate Audio

Multiple Codec Configuration Options

External Audio Power-Down Control

AC’97 FEATURES

AC’97 2.1-Compliant

Greater than 90 dB Dynamic Range

Stereo Headphone Amplifier

Multibit ΣΔ 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

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