CS48540集成电路（IC）的DSP（数字信号处理器）规格书PDF中文资料

CS48540属于集成电路（IC）的DSP（数字信号处理器）。由凌云逻辑制造生产的CS48540DSP（数字信号处理器）数字信号处理器是类似于微处理器或微控制器的器件，但区别在于其内部架构经修改，适用于对连续数据流连续执行以乘法和加法运算为主的算法，而不是以条件逻辑或大量并发进程为主的算法。该器件通常用于诸如音频或视频信号处理等应用。

Differentiating from the legacy Cirrus multi-standard, multichannel decoders, this new CS485xx family is still based on the same high-performance 32-bit fixed point 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 and a 3.3V I/O that is tolerant to 5V input

❐ Low-power Mode

— “Energy-Star Ready” via low-power mode, 268 µW in standby