Analog Devices Ad1981A - HP Evo D510 e-pc Technical Reference Manual

All models have a Line In, Line Out and Microphone In connector located on the rear panel.
These external jacks are standard connectors.

Analog Devices AD1981A

Features of the AD1981A include:
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S/PDIF output, 20 bits data format, supporting 48 kHz, 44.1 kHz, and 32 kHz
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Integrated stereo headphone amplifier
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Variable sample rate audio
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External audio power down control
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Greater than 90 dB dynamic range
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16 bit stereo full duplex CODEC
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20 bit resolution output DACs
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Three analog line level stereo inputs for: line in, AUX and CD
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Mono line level phone input
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Mono MIC input with built in programmable pre-amp
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High quality CD input with ground sense
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Mono output for speakerphone or internal speaker
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Power management support
Other Enhanced Features include:
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Built in digital equalizer function for optimized speaker sound
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Full duplex variable sample rates from 7040 Hz to 48 kHz with 1 Hz resolution
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Multiple CODEC configuration options
Technical Reference Guide
Line in connector
Line out/speaker Microphone
connector connector
System Features
2–17