System Features

Audio

The audio solution on the Compaq Evo D310 Micro Desktop is the Integrated Analog Devices AD1981A AC’97 SoundMAX CODEC. The AD1981A interfaces directly with the South Bridge chip and performs all digital operations, such as sample rate conversions and synthesis, as well as mixing and processing the analog signals.

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

Line out / speaker

Line in connector

connector

 

 

 

 

 

 

 

 

 

 

Microphone connector

Analog Devices AD1981A

Feature of the AD1981A include:

S/PDIF output, 20 bits data format, supporting 48 kHz, 44.1 kHz and 32 kHz

Integrated stereo headphone amplifier

Variable sample rate audio

External audio power down control

Greater than 90 dB dynamic range

16 bit stereo full duplex CODEC

20 bit resolution output DACs

Three analog line level stereo inputs for: line in, AUX and CD

Mono line level phone input

Mono MIC input with built in programmable pre-amp

High quality CD input with ground sense

Mono output for speakerphone or internal speaker

Power management support.

Other Enhanced Features include:

Built in digital equalizer function for optimized speaker sound

Full duplex variable sample rates from 7040 Hz to 48 kHz with 1 Hz resolution

Multiple CODEC configuration options.

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Compaq D310 manual Audio, Analog Devices AD1981A