CS497024-CVZ

Digital Signal Processor Dsp Overview

The CS497024-CVZ is a dual-core 32-bit high-definition audio decoder DSP from Cirrus Logic, housed in a 128-pin LQFP package. It features two Coyote DSP cores operating at up to 300 MACS each. The device supports major HD audio formats including Dolby Digital Plus, Dolby TrueHD, DTS-HD Master Audio, and DTS Express. It provides up to 12 channels of 32-bit serial audio input and outputs 16 channels of PCM with dual 192 kHz S/PDIF transmitters. Operating conditions include a core supply voltage of 1.8 V (1.71–1.89 V), an I/O supply of 3.3 V (3.13–3.46 V), and an ambient temperature range of 0°C to 70°C.

Digital Signal Processor Dsp Feature Summary

• Dual-core architecture with separate DSP A and DSP B engines for concurrent decoding and post-processing
• Supports Dolby TrueHD, DTS-HD Master Audio, Dolby Digital Plus, and legacy formats like Dolby Pro Logic IIz
• Integrated 12-channel digital audio input port and dual 192 kHz S/PDIF transmitters
• On-chip memory includes 16K/10K X SRAM, 24K/16K Y SRAM, and program ROM per core

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
• Audio/video processors utilizing Cirrus Logic's application library

Digital Signal Processor Dsp Procurement Notes

Verify the specific firmware overlay requirements for HD audio formats such as Dolby TrueHD and DTS-HD, as these necessitate external SDRAM. Confirm that the system design accommodates the 3.3 V PLL supply voltage, which differs from previous CS495xx generations. Ensure proper termination for open-drain pins and mode select pins according to the System Designer’s Guide.

Digital Signal Processor Dsp Selection Notes

Select the CS497024-CVZ when DTS-based HD formats are required alongside Dolby standards. The CVZ suffix indicates commercial temperature grade (0°C to 70°C). Designers migrating from CS495xx must account for the fixed 150 MHz SDRAM bus speed and the absence of external SRAM support. Verify that the host MCU can interface via SPI or I2C for code download and control.

Digital Signal Processor Dsp Part Context

The CS4970x4 family serves as an enhanced successor to the CS4953xx series, offering higher performance and native support for modern HD audio codecs. While the CS4953xx focuses on standard definition and legacy surround formats, the CS497024 specifically integrates DTS-HD Master Audio and DTS Express capabilities. It maintains pin compatibility with earlier families to facilitate hardware upgrades while providing expanded software overlays for complex audio environments.

Digital Signal Processor Dsp Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.