CS497014-CVZ

Digital Signal Processor Dsp Overview

The CS497014-CVZ is a high-definition audio decoder DSP from the CS4970x4 family, featuring dual 32-bit Coyote DSP cores. It supports decoding of Dolby Digital Plus, Dolby TrueHD, MPEG-2 AAC LC 5.1, and legacy formats like Dolby Digital EX and DTS-ES. The device includes extensive post-processing capabilities such as tone control, parametric EQ, and bass management. It accepts up to 12 channels of 32-bit serial audio input and outputs 16 channels of PCM via two digital audio ports with S/PDIF transmission. Operating conditions include a core supply of 1.8V and I/O/PLL supply of 3.3V, housed in a 128-pin LQFP package.

Digital Signal Processor Dsp Feature Summary

• Dual-core architecture: DSP A handles HD audio decoding (Dolby TrueHD, DD+), while DSP B manages post-processing and enhancement.
• Supports major HD audio formats including Dolby Digital Plus, Dolby TrueHD, and MPEG-2 AAC LC 5.1.
• Comprehensive post-processing library including 11-band parametric EQ, delay, bass manager, and virtualization technologies.
• Flexible I/O: 12-channel serial audio input, 16-channel PCM output, and dual S/PDIF transmitters.

Digital Signal Processor Dsp Applications

• High-definition audio decoders for home theater systems
• Digital broadcast receivers requiring multi-format support
• DVD and Blu-ray players with advanced audio processing needs
• Audio/video processors utilizing Cirrus Logic's application library

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix 'CVZ' indicates the commercial temperature grade (0°C to +70°C) and 128-pin LQFP package as per the datasheet. Confirm that external SDRAM is included in the system design, as required for Dolby TrueHD and DTS-HD Master Audio decoding. Ensure power sequencing aligns with recommendations where the 3.3V IO supply comes up ahead of or simultaneously with the 1.8V core supply.

Digital Signal Processor Dsp Selection Notes

Select the CS497014-CVZ when Dolby TrueHD and Dolby Digital Plus decoding are required alongside standard surround formats. Note that this model does not include native DTS-HD Master Audio support; the CS497024 variant is necessary for full DTS-HD compatibility. Consider the need for external SDRAM if utilizing all HD audio features, as on-chip memory suffices only for legacy and basic HD codecs.

Digital Signal Processor Dsp Part Context

The CS497014 is part of the CS4970x4 family, an enhanced version of the CS4953xx series. It offers higher performance and supports modern HD audio formats previously unavailable in the CS495xx line. The device provides an upgrade path for systems using older CS495xx components, though hardware changes may be needed for PLL voltage and SDRAM interface speeds.

Digital Signal Processor Dsp Replacement Considerations

The CS497024-CVZ is a compatible alternative within the same family that adds support for DTS-HD Master Audio, DTS-HD High Resolution Audio, and DTS Express 5.1. If DTS-HD decoding is required, the CS497024 should be selected instead of the CS497014.