ADAV400KSTZ

Overview

The ADAV400KSTZ is an audio codec processor from Analog Devices Inc. housed in an 80-lead LQFP (14 mm × 14 mm) package. It integrates a SigmaDSP core with 28-bit processing and high-performance analog I/Os. The device features four stereo analog inputs via a mux-to-stereo ADC, four stereo analog outputs, and a dedicated headphone output with an integrated amplifier. Digital interfaces include multichannel I2S and TDM modes, plus a sample rate converter supporting 5 kHz to 50 kHz. Operating temperatures range from 0°C to 70°C.

Feature Summary

• Integrated SigmaDSP core with 28-bit processing and programmable dynamics processors
• Four stereo analog inputs with a 95 dB dynamic range ADC and four stereo DAC outputs
• Dedicated headphone channel with integrated amplifier capable of driving 32 Ω loads
• Multichannel digital I/O supporting I2S, left/right justified, and TDM formats

Applications

• ATV and AV audio applications
• TV audio processing
• Set-top box (STB)
• HTiB systems
• General audio enhancement

Procurement Notes

Verify the specific ordering suffix KSTZ against official documentation to confirm package type and temperature grade. Confirm availability through authorized distributors as supply status may vary. Ensure compatibility with system power requirements, specifically the 3.3 V analog and 1.8 V digital supplies.

Selection Notes

Select this component for designs requiring flexible audio routing and onboard DSP capabilities without external processors. Consider the 80-lead LQFP footprint for PCB layout constraints. Verify that the 0°C to 70°C operating range meets environmental specifications. Ensure the I2C control interface aligns with the host microcontroller's capabilities.

Part Context

The ADAV400 belongs to Analog Devices' family of enhanced audio processors utilizing SigmaDSP technology. It is designed to differentiate products through superior audio performance by compensating for real-world speaker and listening environment limitations. The device supports third-party algorithm integration for branding certification.

Replacement Considerations

Consult the official Analog Devices ordering guide for direct cross-references or updated revisions. Verify pinout and register compatibility if substituting with other members of the SigmaDSP audio processor family.