CS485xx CS485xx Family Data Sheet Differentiating from the legacy Cirrus multi-standard, multi-channel Features decoders, this new CS485xx family is still based on the same high-performance 32-bit fixed point Digital Signal Processor core Cost-effective, High-performance 32-bit DSP but instead is equipped with much less memory, tailoring it for more 300,000,000 MAC/S (multiply accumulates per second) cost-effective applications associated with multi-channel and Dual MAC cycles per clock virtual-channel sound enhancements. Target applications are: 72-bit accumulators are the most accurate in the industry Digital Televisions 24k x 32 SRAM, 2k blocks - assignable to data or program Multimedia Peripherals Internal ROM contains a variety of configurable sound iPod Docking Stations enhancement feature sets Automotive Head Units 8-channel internal DMA Automotive Outboard Amplifiers Internal watch-dog DSP lock-up prevention HD-DVD and Blu-ray Disc DVD Receivers DSP Tool Set w/ Private Keys for Protecting Customer IP PC Speakers Configurable Serial Audio Inputs/Outputs There are also a wide variety of licensable DSP codes available today as seen by the following examples: 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 Cirrus also has developed, or is developing their own royalty-free Dual processing path capability versions of popular features sets like Cirrus Bass Manager, Cirrus Input supports dual domain slave clocking Dynamic Volume Leveler, Cirrus Original Multichannel Surround, Cirrus Virtual Speaker & Cirrus 3D-Audio. Hardware assist time sampling for sample rate conversion Integrated Clock Manager/PLL The CS485xx family is programmed using the Cirrus proprietary DSP Composer GUI development tool. Processing chains may be Can operate from external crystal, external oscillator designed using a drag-and-drop interface to place/utilize functional Input Fs Auto Detection macro audio DSP primitives. The end result is a software image that is down-loaded to the DSP via serial host or serial boot modes. Host & Boot via Serial Interface See Section 6 for ordering information. 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 in low-power mode, 268 W in standby Serial GPIO Debug Control 1 12 Ch. Audio In / Watchdog 6 Ch. SACD In D 32-bit TMR1 M DSP A TMR2 S/PDIF P X Y 12 Ch PCM Audio Out PLL CS485xx Block Diagram Copyright Cirrus Logic, Inc. 2011 DS734F5 (All Rights Reserved) Contacting Cirrus Logic Support For all product questions and inquiries, contact a Cirrus Logic Sales Representative. To find the one nearest you, go to www.cirrus.com. IMPORTANT NOTICE Cirrus Logic, Inc. and its subsidiaries (Cirrus) believe that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided AS IS without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives consent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This consent does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (CRITICAL APPLICATIONS). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMERS RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE CUSTOMER OR CUSTOMERS CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES, BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL LIABILITY, INCLUDING ATTORNEYS FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES. Cirrus Logic, Cirrus, and the Cirrus Logic logo designs, DSP Composer, and Cirrus Framework are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. Dolby, Dolby Digitaol, Dolby Headphone, Virtual Speaker, and Pro Logic are registered trademarks of Dolby Laboratories, Inc. Supply of an implementation of Dolby Technology does not convey a license nor imply a right under any patent, or any other industrial or Intellectual Property Right of Dolby Laboratories, to use the Implementation in any finished end-user or ready-to-use final product. It is hereby notified that a license for such use is required from Dolby Laboratories. DTS and DTS Neo:6 are registered trademarks of Digital Theater Systems, Inc. It is hereby notified that a third-party license from DTS is necessary to distribute software of DTS in any finished end-user or ready-to-use final product. SRS, Circle Surround and Trusurround XT are registered trademarks of SRS Labs, Inc. Circle Surround II is a trademark of SRS Labs, Inc. The Circle Surround technology is incorporated under license from SRS Labs, Inc. The Circle Surround technology rights incorporated in the CS485xx are owned by SRS Labs, a U.S. Corporation and licensed to Cirrus Logic, Inc. Purchaser of CS485xx must sign a license for use of the chip and display of the SRS Labs trademarks. Any products incorporating the CS485xx must be sent to SRS Labs for review. The Circle Surround technology is protected under US and foreign patents issued and/or pending. Circle Surround, SRS and (O) symbol are trademarks of SRS Labs, Inc. in the United States and selected foreign countries. Neither the purchase of the CS485xx, nor the corresponding sale of audio enhancement equipment conveys the right to sell commercialized recordings made with any SRS technology/solution. SRS Labs requires all set makers to comply with all rules and regulations as outlined in the SRS Trademark Usage Manual. SPI is a trademark of Motorola, Inc. IC is a trademark of Philips Semiconductor. iPod is a registered trademark of Apple Computer, Inc. HD DVD is a trademark of DVD Format/Logo Licensing Corporation. Blu-Ray Disc is a registered trademark of SONY KABUSHIKI KAISHA CORPORATION. Energy Star is a registered trademark of the Environmental Protection Agency, a federal agency of the United States government. DS734F5 2