Cirrus Logic CS35L00 User Manual
Page 2
CS35L00
2
DS906PP1
TABLE OF CONTENTS
1. PIN DESCRIPTIONS FOR CS35L00 ..................................................................................................... 5
2. DIGITAL PIN CONFIGURATIONS ......................................................................................................... 6
3. TYPICAL CONNECTION DIAGRAMS ................................................................................................... 7
4. CHARACTERISTICS & SPECIFICATIONS ........................................................................................... 8
RECOMMENDED OPERATING CONDITIONS .................................................................................... 8
ABSOLUTE MAXIMUM RATINGS ........................................................................................................ 8
ELECTRICAL CHARACTERISTICS - ALL OPERATIONAL MODES ................................................... 9
ELECTRICAL CHARACTERISTICS - SD MODE ................................................................................ 10
ELECTRICAL CHARACTERISTICS - FSD MODE .............................................................................. 11
ELECTRICAL CHARACTERISTICS - HD MODE ................................................................................ 12
ELECTRICAL CHARACTERISTICS - FHD MODE ............................................................................. 13
DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS .................................................... 14
POWER-UP & POWER-DOWN CHARACTERISTICS ........................................................................ 14
5. APPLICATIONS ................................................................................................................................... 15
5.1 MODE Descriptions ....................................................................................................................... 15
5.1.1 Standard Class D Modes of Operation .................................................................................. 15
5.1.1.1 SD Mode .................................................................................................................... 15
5.1.1.2 FSD Mode .................................................................................................................. 15
5.1.2 Hybrid Class D Modes of Operation ...................................................................................... 15
5.1.2.1 HD Mode .................................................................................................................... 16
5.1.2.2 FHD Mode ................................................................................................................. 16
5.2 Reducing the Gain with External Series Resistors ........................................................................ 16
5.3 Output Filtering with the CS35L00 ................................................................................................. 17
5.3.1 Reduced Filter Order with the CS35L00 ............................................................................... 17
5.3.2 Filter Component Selection ................................................................................................... 17
5.3.3 Output Filter Power Dissipation Considerations .................................................................... 18
5.3.3.1 Conduction Losses for All Modes of Operation ......................................................... 18
5.3.3.2 Switching Losses in SD/FSD Mode ........................................................................... 18
5.3.3.3 Switching Losses in HD/FHD. .................................................................................... 18
5.4 Power-Up and Power-Down .......................................................................................................... 19
5.4.1 Recommended Power-Up Sequence .................................................................................... 19
5.4.1.1 Zero Crossing on Power-Up Functionality ................................................................. 19
5.4.2 Recommended Power-Down Sequence ............................................................................... 20
5.5 Over Temperature Protection ........................................................................................................ 20
6. TYPICAL PERFORMANCE PLOTS ..................................................................................................... 21
6.1 SD Mode Typical Performance Plots ............................................................................................. 21
6.2 FSD Mode Typical Performance Plots ........................................................................................... 23
6.3 HD Mode Typical Performance Plots ............................................................................................. 25
6.4 FHD Mode Typical Performance Plots ........................................................................................... 27
7. PARAMETER DEFINITIONS ................................................................................................................ 29
8. PACKAGING AND THERMAL INFORMATION .................................................................................. 30
8.1 Package Drawings and Dimensions .............................................................................................. 30
8.2 Recommend PCB Footprint and Routing Configuration ................................................................ 31
8.3 Package Thermal Performance ..................................................................................................... 31
8.4 DFN Thermal Pad .......................................................................................................................... 31
8.4.1 Determining Maximum Ambient Temperature ....................................................................... 32
9. ORDERING INFORMATION ................................................................................................................ 33
10. REVISION HISTORY .......................................................................................................................... 33