Audio Decoder 128-Pin LQFP T/R

The CS4953xx DSP family are the enhanced versions of theCS495xx DSP family with higher overall performance andlower system cost. The CS4953xx includes all mainstreamaudio processing codes in on-chip ROM. This saves externalmemory for code storage. In addition, the intensive decodingtasks of Dolby Digital Surround EX, AAC multi-channel,DTS-ES 96/24, THX Ultra2 Cinema and Dolby Headphonecan be accomplished without the expense of externalSDRAM memory.With larger internal memories than the CS495xx, theCS49531x is designed to support up to 150 ms per channelof lip-sync delay. With 150 MHz internal clock speed, theCS4953xx supports the most demanding post-processingrequirements. It is also designed for easy upgrading.Customers currently using the CS495xx can upgrade to theCS4953xx with minor hardware and software changes.

• Multi-standard 32-bit Audio Decoding plus Post processing
• Supports legacy audio formats and a wide array of postprocessing
  • Dolby Digital® EX, Dolby Pro Logic® II, IIx, IIz 7.1, Dolby Headphone® 2, Dolby Virtual Speaker® 2, Dolby Volume® (original), Dolby Volume 258™ (lite), Audistry®
  • DTS-ES 96/24™ Discrete 7.1, DTS-ES™ Discrete 7.1, DTS-ES™ Matrix 6.1, DTS Neo:6®, DTS Neural Surround™ DTS Surround Sensation Speaker
  • MPEG-2 AAC™ LC 5.1
  • SRS® Circle Surround® II, SRS Circle Surround Auto, SRS Circle Surround Decoder Optimized, SRS TruVolume™ 7.1 (V 2.1.0.0), SRS TruSurround HD/HD4®, SRS WOW HD™, SRS CS Headphone™, SRS Circle Cinema 3D™, SRS Studio Sound HD™
  • THX® Ultra2™, THX Select2™
• Cirrus Logic’s Applications Library
  • Cirrus Original Multi-Channel Surround 2 (COMS2), Cirrus Band XpandeR™, Cirrus Virtualization Technology (CVT), Cirrus Intelligent Room Calibration 2 (IRC2), Cirrus Bass Enhancement (CBE)
  • Crossbar Mixer, Signal Generator
  • Advanced Post-Processors including: 7.1 Bass Manager Quadruple Crossover, Tone Control, 11- Band Parametric EQ, Delay, 2:1/4:1 Decimator, 1:2/1:4 Upsampler
• Up to 12 Channels of 32-bit Serial Audio Input
• 16 Ch x 32-bit PCM Out with Dual 192 kHz S/PDIF Tx
• Two SPI™/I2C™ Ports
• Customer Software Security Keys
• Large On-chip X, Y, and Program RAM & ROM
• SDRAM and Serial Flash Memory Support