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CS48AU2B-CQZ Datasheet(PDF) 1 Page - Cirrus Logic |
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CS48AU2B-CQZ Datasheet(HTML) 1 Page - Cirrus Logic |
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1 / 26 page  Copyright 2009 Cirrus Logic MAY ’09 CONFIDENTIAL DS876F3 http://www.cirrus.com CS48AU2B Data Sheet FEATURES World’s first cost-effective, high-performance 32-bit DSP that is solely dedicated to enable Audyssey Laboratories audio processing technologies for today’s high-volume consumer electronic products Features: Audyssey Dynamic VolumeTM, Audyssey Dynamic EQTM, Audyssey EQTM & Audyssey BassXTTM/BassXT-TVTM Audyssey Dynamic Volume eliminates the need for constant volume adjustments Audyssey Dynamic EQ enables a reference playback experience at any desired playback level Audyssey EQ removes much of the distortion caused by speaker enclosures and the typical room environment producing greatly improved sound compared to similar products without correction Audyssey BassXT and BassXT-TV are specifically calibrated to enhance the physical bass response of each product model Configurable Serial Audio Inputs/Outputs — Maximum 32-bit @ 192 kHz (Note: Audyssey Laboratories algorithms support 48 kHz, 44.1 kHz and 32 kHz) — Integrated 192 kHz capable S/PDIF transmitter Integrated Clock Manager/PLL — Can operate from external crystal, external oscillator Input Fs Auto Detection & Coefficient Loading Host Control & Boot via Serial Interface Support for Master (Self) Boot via Serial EEPROM for single Fs applications (i.e. 48 kHz only via ADC input) 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 32-bit DSP D M A P X Y Serial Control 1 M ultichannel Audio O ut GPIO Debug W atchdog TM R 1 TM R 2 PLL S/PD IF M ultichannel Audio In The brand new CS48AU2B device 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 which feature Audyssey Laboratories audio processing technologies. Target applications are: — Digital Televisions —iPod® Docking Stations — Automotive Head Units (OEM and Aftermarket) — Automotive Outboard Amplifiers (OEM and Aftermarket) —Blu-ray® Disc Receivers — Soundbars / Sound Projectors The following Audyssey Laboratories algorithms are currently supported on the CS48AU2B and more are in development: While the individual Audyssey processing algorithms have already been implemented on this DSP, the CS48AU2B is programmed using the Cirrus proprietary DSP Composer™ GUI development tool. Processing chains combining both standard signal processing blocks (Tone Control, Bass Management, etc.) in combination with any combination of Audyssey Laboratories technology algorithm blocks may be designed using a simple drag-and-drop interface to create a custom signal flow specific to your product model. The end result of this is a software image that is down-loaded to the DSP via serial host (I2C® or SPITM) or via a serial master (self) boot. Support for loading of the various Audyssey Laboratories algorithm coefficient files supplied by Audyssey Laboratories is easily supported via DSP Composer, enabling the OEM/ODM to quickly be able to generate the necessary files for the system microcontroller which have been custom tailored for each specific model based on the measurement and analysis performed by Audyssey Laboratories. Ordering Information: See page 21 for ordering information |
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