AC97 SoundMAX Codec
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AC’97 2.1 FEATURES Variable Sample Rate Audio Multiple Codec Configuration Options External Audio Power-Down Control A...
Description
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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 ⌺ - ⌬ 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
AC’97 SoundMAX Codec AD1886A
®
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
FUNCTIONAL BLOCK DIAGRAM
ID0 ID1 JS SPDIF
VREFOUT MIC1 MIC2 LINE AUX CD VIDEO PHONE_IN 0dB/ 20dB
VREF CHIP SELECT JACK SENSE
AD1886A
SPDIF OUT
SELECTOR
PGA
16-BIT ⌺-⌬ A/D CONVERTER
PGA
16-BIT ⌺-⌬ A/D CONVERTER
RESET
SYNC MONO_OUT MV
AC LINK
⌺
HP_OUT_L
⌺
MV
...
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