Cirrus Logic CDB4271 Instruction Manual Download Page 2

Page: 2 / 29

CDB4271

TABLE OF CONTENTS

1. SYSTEM OVERVIEW ............................................................................................................... 4

2. INITIAL BOARD SETUP ......................................................................................................... 11

2.1 Power Supplies: ............................................................................................................... 11
2.2 Installing the Software: ..................................................................................................... 11

2.2.1 Verifying Board Operation: .................................................................................. 12

3. CDB427X.EXE USER'S GUIDE ............................................................................................. 13

3.1 Main Window  ................................................................................................................... 13
3.2 Advanced Window  ........................................................................................................... 14
3.3 I²C Mode No Acknowledge Error  ..................................................................................... 14

4. BLOCK DIAGRAM  ................................................................................................................. 15
5. SCHEMATICS AND LAYOUT   ............................................................................................... 16
6. APPENDIX  .............................................................................................................................. 29

Contacting Cirrus Logic Support

For all product questions and inquiries contact a Cirrus Logic Sales Representative.
To find 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 sub-
ject 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 con-
ditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability. No responsi-
bility 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.

An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this ma-
terial and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. An export license and/or quota needs to be
obtained from the competent authorities of the Chinese Government if any of the products or technologies described in this material is subject to the PRC Foreign
Trade Law and is to be exported or taken out of the PRC.

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 WARRANT-
ED FOR USE IN AIRCRAFT SYSTEMS, MILITARY APPLICATIONS, PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, LIFE SUPPORT PRODUCTS
OR OTHER CRITICAL APPLICATIONS (INCLUDING MEDICAL DEVICES, AIRCRAFT SYSTEMS OR COMPONENTS AND PERSONAL OR AUTOMOTIVE
SAFETY OR SECURITY DEVICES). INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOM-
ER'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, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trade-
marks or service marks of their respective owners.

I2C is a registered trademark of Philips Semiconductor. Purchase of I2C Components of Cirrus Logic, Inc., or one of its sublicensed Associated Companies
conveys a license under the Philips I2C Patent Rights to use those components in a standard I2C system.

Microsoft Windows is a registered trademark of Microsoft Corporation.