Copyright 2009 Cirrus Logic FEB ’09
CONFIDENTIAL DS875F2
http://www.cirrus.com
CS48DV2B Data Sheet
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FEATURES
World’s most cost-effective 32-bit DSP featuring Dolby
®
Volume and Audistry
®
by Dolby
Supports native processing at input Fs up to 48kHz
Single download image enables support for 32 KHz,
44.1 kHz, and 48 kHz audio input
CS48DV2B supports up to 2.0 channels of audio input
and up to 2.1 channels of output
Enables concurrent processing features beyond Dolby
Volume including Tone Control, Multiband Parametric EQ,
Bass Management, Delays.
Configurable Serial Audio Inputs/Outputs
Configurable for all input/output digital audio types
(I
2
S/LJ/RJ)
32-bit data path delivers uncompromised dynamic
range
192 kHz capable integrated S/PDIF transmitter
DAO can operate in master or slave mode (SCLK &
LRCLK)
Integrated Clock Manager/PLL
Capable of operating from a wide variety of external
crystals or external oscillators
Slave Host Boot Capability via Serial Interface
SPI
interface capable of running up to 25 MHz
during run time
1.8V Core and 3.3V I/O that is tolerant to 5V input
Low-power Mode enabled
—Energy Star
®
Design Compliance Capability via low-
power mode, 268 µW in Standby mode
32-bit
DSP
D
M
A
P X Y
Serial
Control 1
Up to 2.1 Ch
Audio Out
GPIO Debug
Watchdog
TMR1
TMR2
PLL
S/PDIF
2.0 Ch.
Audio In
The new CS48DV2B supports a host of signal processing
applications concurrently, including the mass production-ready
Dolby Volume solution. See Section 3. for details about
firmware concurrency on the CS48DV2B. The target
applications for the CS48DV2B DSP are:
Digital Televisions
Soundbars / DTVs with Integrated Soundbars
—PMD/iPod
®
Docking Stations
Automotive Head Units
Automotive Outboard Amplifiers
Blu-ray Disc
®
& DVD Receivers / HTiBs
PC Speakers
All of these applications and many more that use volume
control and are subject to playback from sources that do not
have consistent volume levels will benefit from the CS48DV2B
Dolby Volume solution.
Ordering Information:
See page 21 for ordering information.
CS48DV2B Data Sheet
32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby
2 Copyright 2009 Cirrus Logic DS875F2
CONFIDENTIAL
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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 t
o
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 info
r-
mation 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 supplie
d
at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus for th
e
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 copie
s
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 exten
d
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 PROPER
-
TY 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 CRITICA
L
APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK AND CIRRU
S
DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT
-
NESS 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 INDEM
-
NIFY 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 is a trademarks of Cirrus Logic, Inc. All other brand and product names in this document may b
e
trademarks or service marks of their respective owners.
Dolby, Audistry, and the sound shell logo are registered trademarks of Dolby Laboratories. Supply of an implementation of Dolby Technology does not convey a licens
e
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 o
r
ready-to-use final product. It is hereby notified that a license for such use is required from Dolby Laboratories.
SPI is a trademark of Motorola, Inc.
I
2
C is a registered trademark of Philips Semiconductor.
iPod is a registered trademark of Apple Computer, Inc.
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.
CS48DV2B Data Sheet
32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby
DS875F2 Copyright 2009 Cirrus Logic 3
CONFIDENTIAL
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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
4.1.1 DSP Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1.2 DMA Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 On-chip DSP Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.1 Digital Audio Input Port (DAI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.2 Digital Audio Output Port (DAO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.3 Serial Control Port (I
2
C
®
or SPI
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.4 GPIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.5 PLL-based Clock Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.6 Hardware Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 DSP I/O Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3.1 Multiplexed Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3.2 Termination Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3.3 Pads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.10 Switching Characteristics — Serial Control Port - SPI Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.11 Switching Characteristics — Serial Control Port - I
2
C Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.12 Switching Characteristics — Serial Control Port - I
2
C Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.13 Switching Characteristics — Digital Audio Slave Input Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.14 Switching Characteristics — DSD Slave Input Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.15 Switching Characteristics — Digital Audio Output Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
7. Environmental, Manufacturing, & Handling Information . . . . . . . . . . . . . . . . . . . . . . . . . .22
8. Device Pinout Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
8.1 CS48DV2B, 48-pin LQFP Pinout Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.2 48-pin LQFP Package Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9. Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

CS48DV2B-CQZR

Mfr. #:
Manufacturer:
Cirrus Logic
Description:
Audio DSPs I/C 12 Ch Audio Enhancement Processr
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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