32-bit DSP. CS48AU2B Datasheet

CS48AU2B DSP. Datasheet pdf. Equivalent

CS48AU2B Datasheet
Recommendation CS48AU2B Datasheet
Part CS48AU2B
Description high-performance 32-bit DSP
Feature CS48AU2B; CS48AU2B Data Sheet CONFIDDEENLTPIHAIL DRAFT FEATURES ‰ World’s first cost-effective, high-perform.
Manufacture Cirrus Logic
Datasheet
Download CS48AU2B Datasheet




Cirrus Logic CS48AU2B
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
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
M u ltic ha nne l
Audio In
S /P D IF
M u ltic ha nne l
Audio Out
Serial
Control 1
GPIO
32-bit
DSP
PXY
D
M
A
Debug
W atchdog
TMR1
TMR2
PLL
http://www.cirrus.com
Copyright 2009 Cirrus Logic
CONFIDENTIAL
MAY ’09
DS876F3



Cirrus Logic CS48AU2B
CS48AU2B Data Sheet
Dedicated 32-bit Audio DSP for Audyssey Laboratories Technology
Contacting Cirrus Logic Support
For all product questions and inquiries contact a Cirrus Logic Sales Representative.
To find the one nearest to 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 CUSTOMER'S 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
CUSTOMER'S 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, 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.
Audyssey, the Audyssey stylized logo and font, Audyssey Dynamic Volume, Audyssey Dynamic EQ, Audyssey EQ, and Audyssey BassXT ( implementations for both
HTIB and TV) are either trademarks or registered trademarks of Audyssey Laboratories. Sale of the CS48AU2B is only authorized to licensees of Audyssey
Laboratories deemed to be in good standing.
SPI is a trademark of Motorola, Inc.
I2C is a registered trademark of Philips Semiconductor.
iPod is a registered trademark of Apple Computer, Inc.
Blu-ray and Blu-ray Disc are trademarks of SONY KABUSHIKI KAISHA CORPORATION.
Energy Star is a registered trademark of the Environmental Protection Agency, a federal agency of the United States government.
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Copyright 2009 Cirrus Logic
DS876F3
CONFIDENTIAL



Cirrus Logic CS48AU2B
CS48AU2B Data Sheet
Dedicated 32-bit Audio DSP for Audyssey Laboratories Technology
Table of Contents
1. Documentation Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Licensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Code Overlays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. Hardware Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 DSP Core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 On-chip DSP Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.3 DSP I/O Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.4 Application Code Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5. Characteristics and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2 Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3 Digital DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.4 Power Supply Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.5 Thermal Data (48-Pin LQFP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.6 Switching Characteristics— RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.7 Switching Characteristics — XTI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.8 Switching Characteristics — Internal Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.9 Switching Characteristics — Serial Control Port - SPI Slave Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.10 Switching Characteristics — Serial Control Port - SPI Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.11 Switching Characteristics — Serial Control Port - I2C Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.12 Switching Characteristics — Serial Control Port - I2C Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.13 Switching Characteristics — Digital Audio Slave Input Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.14 Switching Characteristics — DSD Slave Input Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.15 Switching Characteristics — Digital Audio Output Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7. Environmental, Manufacturing, & Handling Information . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8. Device Pinout Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.1 CS48AU2B, 48-pin LQFP Pinout Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
9. Package Mechanical Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.1 48-pin LQFP Package Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
10. Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
DS876F3
Copyright 2009 Cirrus Logic
CONFIDENTIAL
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