CS48520/40/60

High-Performance, Low Cost 32-Bit Audio Processor

The 32-bit CS48520 and CS48540 audio DSPs are designed to enable unique digital signal processing audio software features for flat-panel digital television applications. The CS48520 and CS48540 ICs give OEMs a cost-effective and simple-to-design solution capable of providing an extensive selection of audio features that allow OEMs to provide consumers with enhanced audio features and maximize the flat-panel television’s overall audio system.

The CS48520 provides four channels of in/out audio and is ideally designed for two or 2.1-channel stereo applications, whereas the CS48540 provides eight channels of in/out audio and is targeted for multichannel systems.

Among the consumer features that can be implemented using the CS48500 family:

  • Multichannel and virtual surround sound
  • Dynamic volume control
  • Enhanced listening modes
  • Bass management
  • Speaker and cabinet tuning
  • Automatic room equalization
  • A/V sync delay

To assist manufacturers, Cirrus Logic also provides DSP Composer™, a PC-based graphical interface software tool designed to give engineers a simple, powerful user interface from which to configure the audio processing performed by the ICs.

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Documentation

  • Multi-channel 32-bit Audio Post Processing at 150 MHz
  • Up to 12 Channels of 32-bit PCM Input
  • Up to 6 Channels of DSD Input (SACD)
  • Up to 12 Channels of 32-bit PCM Output
  • 192 kHz SPDIF Tx
  • SPI™/I²C® Master/Slave Serial Control Port
  • Low-power Standby: 350 µW
  • Hardware Watchdog Timer
  • Up to 19 GPIOs Available
  • Dual Clock Domains on PCM Input
  • Dual Processing Paths on PCM Output
  • Customer Software Security Keys
  • Large On-chip X, Y, and Program RAM & ROM
  • Programmable via DSP Composer
  • Licensed 3rd party audio processing algorithms in ROM
    • Dolby Headphone® 2 & Dolby® Virtual Speaker® 2
    • SRS TruSurround XT®
    • Dolby ® ProLogic® II & Dolby® ProLogic® IIx
    • SRS ® CSII®
    • Cirrus Original Surround
  • Licensed 3rd party algorithms or custom firmware can be downloaded through SPI™/I²C® port
    • Audistry
    • BBE
    • Neural Surround
    • DTS Neo:6™

CS48520/40/60 - Related News Releases

September 5, 2007
Free of Charge on Cirrus Logic Audio Processors, BandXpandeR Firmware Improves Frequency Harmonics Lost During Audio Compression, Recording or Transmission
December 5, 2006
Processor Gives DTV OEMs Opportunity to Differentiate Their Products Through Valuable, Easy-to-Implement Audio Features
Part Processor Speed (MIPS) Broadcasting DSP Multi-channel Decoding DSPs Car Audio DSPs PCM Processors / Post-Processor DSPs Package
CS485xx Single 32-bit 150 CS48520-DQZ
CS48540-DQZ
CS48560-DQZ
CS48520-CQZ
CS48540-CQZ
CS48560-CQZ
48 LQFP
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