AD1980 Datasheet | Analog Devices

FEATURES AC ’97 2.3 PATIBLE FEATURES 6 DAC Channels for 5.1 Surround S/PDIF Output Integrated Stereo Headphone Amplifier Variable Rate Audio Double Rate Audio (f S = 96 k Hz) Greater than 90 d B Dynamic Range 20-Bit PCM DACs Line-Level Mono ”Phone” Input High Quality CD Input Selectable MIC Input with Preamp AUX and Line_In Stereo Inputs External Amplifier Power-Down Control Power Management Modes 48-Lead LQFP Package AC ’97 Sound MAX Codec AD1980 ® ENHANCED FEATURES Integrated Parametric Equalizer Stereo MIC Preamp Support Integrated PLL for System Clocking Variable Sample Rate 7 k Hz to 96 k Hz Jack Sense (Auto Topology Switching) Software Controlled VREF_OUT for MIC Bias Software Enabled Outputs for Jack Sharing Auto Down-Mix and Channel Spreading Modes FUNCTIONAL BLOCK DIAGRAM VREFOUT VREF VOLTAGE REFERENCE XTL_OUT XTL_IN SPDIF MC1 MIC PREAMP G G MC2 PHONE_IN CD_L CD_GND CD_R AUX_L AUX_R LINE_IN_L LINE_IN_R CD DIFF AMP 2CMIC CODEC CORE PCM L/R ADC RATE SPDIF TX RECORD SELECTOR ID0 16-BIT ⌺-⌬ ADC 16-BIT ⌺-⌬ ADC ID1 PCM LFE DAC RATE RESET LFE_OUT SPRD AC '97 INTERFACE 20-BIT ⌺-⌬ DAC DAC SLOT LOGIC SYNC CENTER_OUT...