CS5471

2

TABLE OF CONTENTS

3. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 3

ANALOG CHARACTERISTICS ................................................................................................ 3

DIGITAL CHARACTERISTICS ................................................................................................. 4

RECOMMENDED OPERATING CONDITIONS ....................................................................... 5

ABSOLUTE MAXIMUM RATINGS ........................................................................................... 5

SWITCHING CHARACTERISTICS .......................................................................................... 6

4. GENERAL DESCRIPTION ....................................................................................................... 7

4.1 Theory of Operation ........................................................................................................... 7

4.2 Performing Measurements ................................................................................................. 7

4.3 High Rate Digital Filters ..................................................................................................... 8

4.4 Serial Interface ................................................................................................................... 8

4.5 System Initialization ........................................................................................................... 9

4.6 Analog Inputs ..................................................................................................................... 9

4.7 Voltage Reference ............................................................................................................. 9

4.8 Using the Charge Pump Drive Pin ..................................................................................... 9

4.9 PCB Layout ...................................................................................................................... 10

5. PIN DESCRIPTION.................................................................................................................. 11

6. PACKAGE DIMENSIONS........................................................................................................ 13

LIST OF FIGURES

Figure 1. Serial Port Timing............................................................................................................. 6

Figure 2. Typical Connection Diagram ............................................................................................7

Figure 3. Serial Port Data Transfer ................................................................................................. 8

Figure 4. Close-up of One Frame.................................................................................................... 9

Figure 5. Generating VA- with a Charge Pump............................................................................. 10

Contacting Cirrus Logic Support

For a complete listing of Direct Sales, Distributor, and Sales Representative contacts, visit the Cirrus Logic web site at:

http://www.cirrus.com/corporate/contacts/sales/cfm

Preliminary product information describes products which are in production, but for which full characterization data is not yet available. Advance product infor-

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