Audio Decoder DSP Family with Dual 32-bit DSP Engine Technology

The CS4953xx DSP family are the enhanced versions of the CS495xx DSP family with higher overall performance and lower system cost. The CS4953xx includes all mainstream audio processing codes in on-chip ROM. This saves external memory for code storage. In addition, the intensive decoding tasks of Dolby Digital® Surround EX®, AAC multi-channel, DTS-ES 96/24, THX Ultra2 Cinema and Dolby Headphone can be accomplished without the expense of external SDRAM memory.

FEATURES

❐ Multi-standard 32-bit Audio Decoding plus Post Processing

❐ Framework™ Third-Party Applications Library

— Dolby Digital® EX, Dolby® Pro Logic® IIz, Dolby Headphone® 2, Dolby® Virtual Speaker® 2

— DTS-ES 96/24™, DTS-ES™ Discrete 6.1, DTS-ES™ Matrix 6.1, DTS Neo:6®

— DSD® to Linear PCM Decimation Filtering

— MPEG-2 AAC™ LC 5.1

— SRS® CS2®, SRS TruVolume™, SRS TruSurround HD4™

— THX® Ultra2™, THX® Re-EQ™

— Audyssey 2EQ™

❐ Framework™ Cirrus Logic Applications Library

— 2:1/4:1 Decimator, Cirrus Intelligent Room Calibration 2 (IRC2)

— Cirrus Original Multi-Channel Surround 2 (COMS2)

— Crossbar Mixer, Signal Generator

— Advanced Post-Processor including: 7.1 Bass Manager, Tone Control, 11-Band Parametric EQ, Delay, 1:2/1:4 Upsampler

❐ Up to 12 Channels of 32-bit Serial Audio Input

❐ 16 Ch x 32-bit PCM Out with either two or one 192 kHz S/PDIF Tx

❐ Two SPI™/I2C™ Ports and one Parallel Port*

❐ Customer Software Security Keys

❐ Large On-chip X, Y, and Program RAM & ROM

❐ SDRAM and Serial Flash Memory Support