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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 of 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. APPLICATIONS ATV and AV audio applications TV audio processing Set-top box (STB) HTiB General audio enhancement

IC AUDIO CODEC PROCESSOR 80-LQFP