CS44L10 データシートの表示（PDF） - Cirrus Logic

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CS44L10

Digital PWM Headphone Monitor

Cirrus Logic 

CS44L10

TABLE OF CONTENTS

1. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 4

2. TYPICAL CONNECTION DIAGRAMS ................................................................................... 10

3. REGISTER QUICK REFERENCE ...................................................................................... 12

4. REGISTER DESCRIPTIONS .................................................................................................. 13

5. PIN DESCRIPTION ................................................................................................................. 25

6. APPLICATIONS ..................................................................................................................... 26

6.1 Grounding and Power Supply Decoupling ...................................................................... 26

6.2 Clock Modes ................................................................................................................... 26

6.3 De-Emphasis .................................................................................................................. 26

6.4 PWM PopGuard Transient Control ................................................................................. 26

6.5 Recommended Power-up Sequence .............................................................................. 27

6.5.1 Stand Alone Mode ................................................................................................ 27

6.5.2 Control Port Mode ................................................................................................ 27

7. CONTROL PORT INTERFACE .............................................................................................. 28

7.1 Two-Wire Format ............................................................................................................ 28

7.1.1 Writing in Two-Wire Format ................................................................................. 28

7.1.2 Reading in Two-Wire Format ............................................................................... 28

7.2 Memory Address Pointer (MAP) ................................................................................... 29

7.2.1 INCR (Auto Map Increment Enable) .................................................................... 29

7.2.2 MAP3-0 (Memory Address Pointer) ..................................................................... 29

8. PARAMETER DEFINITIONS .................................................................................................. 32

9. PACKAGE DIMENSIONS ....................................................................................................... 33

LIST OF FIGURES

Figure 1. Serial Audio Data Interface Timing .................................................................................. 7

Figure 2. Control Port Timing - Two-Wire Format ........................................................................... 9

Figure 3. Typical CS44L10 Connection Diagram Stand-Alone Mode ........................................... 10

Figure 4. Typical CS44L10 Connection Diagram Control Port Mode ............................................ 11

Figure 5. Dynamics Control Block Diagram .................................................................................. 20

Figure 6. De-Emphasis Curve ....................................................................................................... 23

Figure 7. Control Port Timing, Two-Wire Format .......................................................................... 28

Figure 8. Single Speed Stopband Rejection ................................................................................. 30

Figure 9. Single Speed Transition Band........................................................................................ 30

Figure 10. Single Speed Transition Band (Detail) ......................................................................... 30

Figure 11. Single Speed Passband Ripple.................................................................................... 30

Figure 12. Double Speed Stopband Rejection .............................................................................. 30

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-

mation describes products which are in development and subject to development changes. Cirrus Logic, Inc. has made best efforts to ensure 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

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DS541PP1

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