Cirrus Logic CS42L42 Manuals

Manuals and User Guides for Cirrus Logic CS42L42. We have 1 Cirrus Logic CS42L42 manual available for free PDF download: Manual

Cirrus Logic CS42L42 Manual

Cirrus Logic CS42L42 Manual (183 pages)

Low-Power Audio Codec with SoundWire-I2S/TDM and Audio Processing

Brand: Cirrus Logic | Category: Conference System | Size: 6 MB

Table of Contents

Table of Contents
2
1 Pin Assignments and Descriptions

3
2 Typical Connections

9
- Electromagnetic Compatibility (EMC) Circuitry
  11
3 Characteristics and Specifications

12
4 Functional Description

29
- Analog Input
  31
- Digital Mixer
  32
- Three-Band Equalizer
  33
- Analog Output
  36
- System Headphone Parasitic Resistances
  39
- Class H Amplifier
  41
- Clocking Architecture
  46
- Soundwire Interface
  52
- Audio Serial Port (ASP)
  67
- S/PDIF Tx Port
  73
- Sample-Rate Converters (Srcs)
  75
- Headset Interface
  76
- Headset Type Detect
  78
- Plug Presence Detect
  79
- Power-Supply Considerations
  82
- Control-Port Operation
  84
- Reset
  86
- Interrupts
  87
5 System Applications

89
- Power-Up Sequence
  89
- Power-Down Sequence
  92
- Soundwire Power Sequences
  93
- X30 Read Sequence
  97
- PLL Clocking
  97
- Standby Mode and Headset Clamps
  97
- Detection Sequence from Wake
  97
- VD_FILT/VL ESD Diode
  101
- External Output Switch Considerations
  101
6 Register Quick Reference

102
- Soundwire Address Maps
  103
- Slave Control Port Registers
  104
- Slave Data Port 1-3, 15 Registers
  105
- Global Registers
  106
- Power-Down and Headset-Detect Registers
  107
- Clocking Registers
  108
- Interrupt Registers
  108
- Fractional-N PLL Registers
  110
- HP Load Detect Registers
  110
- Headset Interface Registers
  110
- Headset Bias Registers
  111
- ADC Registers
  111
- DAC Registers
  112
- HP Control Registers
  112
- Class H Registers
  112
- Mixer Volume Registers
  112
- Equalizer Registers
  113
- Audioport Interface Registers
  113
- SRC Registers
  114
- DMA Registers
  114
- S/PDIF Registers
  114
- Serial Port Transmit Registers
  115
- Serial Port Receive Registers
  115
- ID Registers
  116
7 Register Descriptions

116
- Soundwire Control Port 0 Registers
  117
- Soundwire Data Port (1-3) Descriptions
  123
- Global Registers
  127
- Power down and Headset Detects
  130
- Clocking Registers
  136
- Interrupt Registers
  139
- Fractional-N PLL Registers
  146
- HP Load-Detect Registers
  148
- Headset Interface Registers
  148
- Headset Bias Registers
  152
- ADC Registers
  153
- DAC Control Registers
  154
- HP Control Register
  155
- Class H Register
  155
- Mixer
  155
- Equalizer
  156
- Audioport Interface Registers
  158
- SRC Registers
  160
- DMA Registers
  160
- S/Pdif
  161
- Serial Port Register Transmit Registers
  162
- Serial Port Receive Registers
  164
- ID Registers
  168
8 PCB Layout Considerations

169
- Power Supply
  169
- Grounding
  169
- QFN Thermal Pad
  169
9 Plots

170
10 Package Dimensions

179
- WLCSP Package Dimensions
  179
- QFN Package Dimensions
  180
11 Thermal Characteristics

181
12 Ordering Information

181
13 References

181
14 Revision History

182

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