ADAV400KSTZ datasheet(3/36 Pages) AD

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ADAV400

Rev. 0 | Page 3 of 36

GENERAL DESCRIPTION

The ADAV400 is an enhanced audio processor. Integrating high

performance analog and digital I/Os with a powerful, audio-

specific, programmable core enables designers to differentiate

their products through audio performance.

The audio processing core is based on Analog Devices SigmaDSP

technology featuring full 28-bit processing (56-bit in double

precision mode), a sophisticated, fully programmable dynamics

processor, and delay memory.

This technology allows the system designer to compensate for

real world limitations of speakers, amplifiers, and listening

environments. This compensation results in a dramatic

improvement of the perceived audio quality through speaker

equalization, multiband compression and limiting, and third-

party-branded algorithms.

The analog I/O integrates Analog Devices proprietary continuous

time, multibit, sigma-delta (Σ-Δ) architecture. This integration

brings a higher level of performance to systems that are

required to meet system branding certification by third-party

algorithm providers. The analog inputs feature a 95 dB dynamic

range stereo ADC fed from a four-stereo input mux. The four

stereo analog outputs are each driven by a 95 dB dynamic range

DAC. A dedicated headphone channel is included with

integrated amplifiers.

The ADAV400 supports multichannel digital inputs and outputs.

An integrated SRC on one channel provides the capability to

support any input sample rate in the range 5 kHz to 50 kHz,

synchronizing this input to the internal DSP engine.

The ADAV400 is supported by a powerful graphical programming

tool that includes blocks such as general filters, EQ filters, dynamics

processing, mixers, volume, and third-party algorithms for fast

development of custom signal flows.

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