SAA7706H/N107,518

Digital Signal Processor Dsp Overview

The SAA7706H is a car radio Digital Signal Processor (DSP) manufactured by NXP USA Inc. It operates on a 3.3 V supply and supports an operating temperature range of -40 °C to +85 °C. The device features five bitstream 3rd-order sigma-delta ADCs, one 1st-order sigma-delta ADC, and four bitstream DACs with 128-fold oversampling. It includes integrated semi-digital filters, digital FM stereo decoding, RDS demodulation, and dual media support for independent front and rear seat audio control. The component utilizes I2C, I2S, LSB, and SPDIF interfaces and is housed in an 80-PQFP package.

Digital Signal Processor Dsp Feature Summary

• Dual media support enabling separate front-seat and rear-seat signal sources and controls
• Integrated digital FM stereo decoder and AM CQUAM stereo decoder capabilities
• High common mode rejection ratio (CMRR) input stages for phone and navigation signals
• Four-channel 5-band parametric equalizer and 9-band mono audio spectrum analyzer

Digital Signal Processor Dsp Applications

• High-end car radio systems
• Automotive audio processing units requiring simultaneous radio and external audio source handling
• Vehicle infotainment systems with independent zone audio control

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix (e.g., /N107,518) against official documentation, as suffixes may indicate packaging or variant differences without altering core functionality. Confirm availability status, as this product line may be discontinued. Ensure compliance with RoHS3 specifications and check for any required licensing for Dolby-B noise reduction implementation.

Digital Signal Processor Dsp Selection Notes

Select this component for applications requiring high-performance analog-to-digital conversion with integrated anti-aliasing filters. The device supports 5 V tolerant digital inputs, simplifying interface design with legacy automotive electronics. Consider the 80-pin QFP package constraints and ensure adequate thermal management within the specified -40 °C to +85 °C operating range.

Digital Signal Processor Dsp Part Context

The SAA7706H belongs to the SAA77 series of automotive DSPs. It is pin-compatible with the SAA7705 and SAA7708 models, facilitating potential design upgrades or replacements within existing hardware architectures. Originally developed by Philips Semiconductors, the product portfolio was transferred to NXP.

Digital Signal Processor Dsp Replacement Considerations

The SAA7705 and SAA7708 are confirmed pin-compatible alternatives within the same family. Verify functional equivalence regarding specific ROM code implementations for features like AM CQUAM decoding before substitution.