CS47024C-CQZR

The CS47024 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 CS47024 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. Target applications include:

• 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)

The CS47024 is programmed using the simple yet powerful Cirrus proprietary DSP Composer GUI development and pre-production tuning tool. Processing chains can be designed using a drag-and-drop interface to place/utilize functional macro audio DSP primitives and custom audio filtering blocks. The end result is a software image that is downloaded to the DSP via serial control port. The Cirrus Framework programming environment offers Assembly and C language compilers and other software development tools for porting existing code to the CS470xx family platform. The CS47024 is available in a 100-pin LQFP package with exposed pad for better thermal characteristics. Both Commercial (0°C to +70°C) and Automotive (–40°C to +85°C) temperature grades.

• 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 x 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