Audio Processor 100-Pin LQFP

The CS470xx family is a new generation of audio system-on-a chip (ASOC) processors targeted at high fidelity, cost sensitive designs. Starting with the single-core 32-bit audio DSP engine from the highly successful CS485xx family 32-bit, the CS470xx family further simplifies system design and reduces total system cost by integrating the S/PDIF Rx, 2 S/PDIF Tx, dual stereo analog inputs – one with 5:1 stereo input mux, up to 8 analog outputs, and up to 20 channels of hardware SRCs to simplify system design. For example, a hardware SRC can down-sample a 192kHz S/PDIF stream to a lower Fs to reduce memory and MIPS requirements for processing. This integration effectively reduces an equivalent system chip count (using the CS47048 device) from 16 to 1 which clearly allows for much smaller, less expensive board designs.

• Cost-effective, High-performance 32-bit DSP
• Integrated DAC & ADC Functionality
• Configurable Serial Audio Inputs/Outputs
• Supports Different Fs Sample Rates
• DSP Tool Set w/ Private Keys Protect Customer IP
• Integrated Clock Manager/PLL
• Input Fs Auto Detection w/ µC Acknowledgement
• Host & Boot via SPI / I²C Serial Interface
• Configurable GPIOs and External Interrupt Input
• 1.8V Core and a 3.3V I/O that is tolerant to 5V input
• Low-power Mode: 620µW