AC ’97 2.3 COMPATIBLE FEATURES

S/PDIF output, 20-bit data format, supporting

48 kHz and 44.1 kHz sample rates

Integrated stereo headphone amplifier

Variable sample rate audio

External audio power-down control

>90 dB dynamic range

Stereo full-duplex codec

20-bit PCM DAC

3 analog line-level stereo inputs for line-in, AUX, and CD

Mono line-level phone input

Dual MIC input with built-in programmable preamplifier

High quality CD input with ground sense

Mono output for speakerphone or internal speaker

power management support

48-lead LQFP package, Pb-free available

ENHANCED FEATURES

Stereo MIC preamplifier support

Built-in digital equalizer function for optimized

speaker sound

Full-duplex variable sample rates from 7040 Hz to

48 kHz with 1 Hz resolution

Jack sense pins for automatic output switching

Software-programmed VREFOUT output for biasing

microphone and external power amplifier

Low power 3.3 V operation for analog and digital supplies

Multiple codec configuration options