Cirrus Logic CS47024C-CQZR

The CS470xx family is a new generation of audio system-on-a-chip (ASOC) processors targeted at high fidelity, cost sensitive designs. Derived from the highly successful CS48500 32-bit fixed-point audio enhancement processor family, the CS470xx further simplifies system design and reduces total system cost by integrating the S/PDIF Rx, S/PDIF Tx, analog inputs, analog outputs, and SRCs. For example, a hardware SRC can down-sample a 192 kHz S/PDIF stream to a lower Fs to reduce memory and MIPS requirements for processing. This integration effectively reduces the chip count from 3 to 1, which allows smaller, less expensive board designs.

• Cost-effective, High-performance 32-bit DSP
• 300,000,000 MAC/S (multiply accumulates per second)
• Dual MAC cycles per clock
• 72-bit accumulators are the highest precision in the industry
• 32K×32-bit SRAM with three 2K blocks assignable to either Y data or program memory
• Integrated DAC and ADC Functionality
• 8 Channels of 24-bit DAC output: 108dB DR, –98 dB THD+N
• 4 Channels of 24-bit ADC input: 105dB DR, –98 dB THD+N
• Integrated 5:1 analog mux feeds one stereo ADC
• Configurable Serial Audio Inputs and Outputs
• Integrated 192 kHz S/PDIF Rx
• Integrated 192 kHz S/PDIF Tx
• Supports 32-bit serial data ⨂192 kHz
• Supports 32-bit audio sample I/O between DSP chips
• TDM I/O modes
• Supports Different Sample Rates (Fs)
• Three integrated hardware SRC blocks
• Output can be master or slave
• Supports dual-domain Fs on S/PDIF vs. I²S inputs
• DSP Tool Set with Private Keys Protect Customer IP
• Integrated Clock Manager/PLL
• Flexibility to operate from internal PLL, external crystal, external oscillator
• Input Fs Auto Detection w/ μC Acknowledgement
• Host Control and Boot via I²C or SPI Serial Interface

• Automotive head units and outboard amplifiers
• Automotive processors and automotive integration hubs
• Digital TV
• MP3 docking stations
• AVR and DVD RX
• DSP controlled speakers (subwoofers, sound bars)