Differentiating from the legacy Cirrus multi-standard, multi channel decoders, this new CS48500 family is still based on the same high-performance 32-bit fixed point DSP Digital Signal Processor core but instead is equipped with much less memory, tailoring it for more cost-effective applications associated with multi-channel and virtual-channel sound enhancements.
●FEATURES
●❐ 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 / 3.3V I/O that are +5V Tolerant
●❐ Low-power Mode
● — "Energy-Star Ready" via low-power mode, 350uW in standby
