DSP Fixed-Point 32-Bit 150MHz 150MIPS 48-Pin LQFP

The CS485xx DSP Family is designed to provide high-performance post-processing and mixing of digital audio. The dual clock domain provided on the PCM inputs allows for the mixing of audio streams with different sampling frequencies. The low-power standby preserves battery life for applications which are always on, but not necessarily processing audio, such as automotive audio systems. There are three devices comprising the CS485xx family. The CS48560 is a differentiated by the number of inputs and outputs available. All DSPs support dual input clock domains and dual audio processing paths. All DSPs are available in a 48-pin QFP package.

• 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 most accurate in the industry
  • 24k x 32 SRAM, 2k blocks - assignable to data or program
  • Internal ROM contains a variety of configurable sound enhancement feature sets
  • 8-channel internal DMA
  • Internal watch-dog DSP lock-up prevention
• DSP Tool Set w/ Private Keys for Protecting Customer IP
• Configurable Serial Audio Inputs/Outputs
  • Configurable for all input/output types
  • Maximum 32-bit @ 192 kHz
  • Supports 32-bit audio sample I/O between DSP chips
  • TDM input modes (multiple channels on same line)
  • 192 kHz SPDIF transmitter
  • Multi-channel DSD direct stream digital SACD input
• Supports Two Different Input Fs Sample Rates
  • Output can be master or slave
  • Dual processing path capability
  • Input supports dual domain slave clocking
  • Hardware assist time sampling for sample rate conversion
• Integrated Clock Manager/PLL
  • Can operate from external crystal, external oscillator
• Input Fs Auto Detection
• Host & Boot via 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
  • “Energy Star® Ready” in low-power mode, 268 µW in standby