CS497024-CVZR

Digital Signal Processor Dsp Overview

The CS497024-CVZR is a dual-core 32-bit high-definition audio decoder DSP from Cirrus Logic, operating within the CS4970x4 family. It features two Coyote DSP cores (DSP A and DSP B) with separate X, Y, and Program memory spaces. The device supports decoding of Dolby Digital Plus, Dolby TrueHD, DTS-HD Master Audio, and DTS Express 5.1 formats. It provides up to 12 channels of 32-bit serial audio input and 16 channels of 32-bit PCM output with dual 192 kHz S/PDIF transmitters. Operating conditions include a core supply voltage of 1.8 V (1.71 V–1.89 V), I/O and PLL supplies of 3.3 V (3.13 V–3.46 V), and an ambient temperature range of 0°C to 70°C for the commercial grade CVZR suffix.

Digital Signal Processor Dsp Feature Summary

• Dual-core architecture: DSP A handles HD audio decoding while DSP B manages post-processing and enhancement.
• Supports major HD audio formats including Dolby TrueHD, DTS-HD Master Audio, Dolby Digital Plus, and DTS Express 5.1.
• Integrated digital audio interfaces: 12-channel serial input (DAI) and 16-channel serial output (DAO) supporting up to 32-bit resolution at 192 kHz.
• On-chip memory includes SRAM and ROM for both cores; external SDRAM support required for specific HD format overlays.

Digital Signal Processor Dsp Applications

• High-definition audio decoders for home theater systems
• Digital broadcast receivers requiring multi-format audio processing
• DVD/Blu-ray players with advanced surround sound capabilities
• Audio post-processing and enhancement modules in consumer electronics

Digital Signal Processor Dsp Procurement Notes

Verify the specific firmware overlay requirements for desired HD audio codecs, as some algorithms like Dolby TrueHD necessitate external SDRAM. Confirm that the commercial grade (CVZR) meets the 0°C to 70°C operating temperature needs of the target application. Ensure power sequencing aligns with recommendations where the 3.3 V I/O supply should rise ahead of or simultaneously with the 1.8 V core supply.

Digital Signal Processor Dsp Selection Notes

Select the CS497024-CVZR when DTS-based HD formats (Master Audio, High Res, Express) are required alongside Dolby formats. Compare against CS497014 if DTS support is unnecessary. Evaluate external memory constraints, as HD decoding requires SDRAM unlike legacy formats which can run on internal memory. Consider the 128-pin LQFP package dimensions for PCB layout.

Digital Signal Processor Dsp Part Context

The CS497024-CVZR belongs to the CS4970x4 family, an enhanced version of the CS4953xx series. It offers higher performance and additional HD audio decoding capabilities compared to its predecessors. The device maintains compatibility with existing Cirrus Logic audio processing libraries while providing a migration path for systems using older CS495xx devices.

Digital Signal Processor Dsp Replacement Considerations

CS497014-CVZR is a related variant within the same family but lacks DTS HD format support. Verify pinout and software compatibility if substituting between CS4970x4 models, noting differences in supported audio codecs and potential external memory requirements.