AD1981A
FEATURES
S/PDIF Output, 20 Bits Data Format, Supporting 48 k Hz and 44.1 k Hz Sample Rates Integrated Stereo Headphone Amplifier Variable Sample Rate Audio External Audio Power-Down Control Greater than 90 d B Dynamic Range 16-Bit Stereo Full-Duplex Codec 20-Bit DAC Input Three Analog Line-Level Stereo Inputs for LINE-IN, AUX, and CD Mono Line-Level Phone Input Mono MIC Input with Built-In Programmable Preamp
AC ‘97 Sound MAX Codec AD1981A
High Quality CD Input with Ground Sense Mono Output for Speakerphone or Internal Speaker Power Management Support 48-Lead LQFP Package ENHANCED FEATURES
Built-in Digital Equalizer Function for Optimized Speaker Sound Full Duplex Variable Sample Rates from 7040 Hz to 48 k Hz with 1 Hz Resolution Jack Sense Pins Provide Automatic Output Switching Software-Programmed V REFOUT Output for Microphone Bias and External Power Amp Split Power Supplies: 3.3 V Digital and 5 V Analog Multiple Codec Configuration Options
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FUNCTIONAL BLOCK DIAGRAM
VREF VREFOUT...
