Cirrus Logic CS43L22 - Manual (Page 5)

DS792F2 5
CS43L22
Confidential Draft
3/4/10
7.16 Beep Volume & Off Time (Address 1Dh) ..................................................................................... 48
7.16.1 Beep Off Time ..................................................................................................................... 48
7.16.2 Beep Volume ....................................................................................................................... 49
7.17 Beep & Tone Configuration (Address 1Eh) .................................................................................. 49
7.17.1 Beep Configuration .............................................................................................................. 49
7.17.2 Beep Mix Disable ................................................................................................................ 49
7.17.3 Treble Corner Frequency .................................................................................................... 50
7.17.4 Bass Corner Frequency ...................................................................................................... 50
7.17.5 Tone Control Enable ........................................................................................................... 50
7.18 Tone Control (Address 1Fh) ........................................................................................................ 50
7.18.1 Treble Gain .......................................................................................................................... 50
7.18.2 Bass Gain ............................................................................................................................ 51
7.19 Master Volume Control: MSTA (Address 20h) & MSTB (Address 21h) ....................................... 51
7.19.1 Master Volume Control ........................................................................................................ 51
7.20 Headphone Volume Control: HPA (Address 22h) & HPB (Address 23h) .................................... 51
7.20.1 Headphone Volume Control ................................................................................................ 51
7.21 Speaker Volume Control: SPKA (Address 24h) & SPKB (Address 25h) ..................................... 52
7.21.1 Speaker Volume Control ..................................................................................................... 52
7.22 PCM Channel Swap (Address 26h) ............................................................................................. 52
7.22.1 PCM Channel Swap ............................................................................................................ 52
7.23 Limiter Control 1, Min/Max Thresholds (Address 27h) ................................................................. 53
7.23.1 Limiter Maximum Threshold ................................................................................................ 53
7.23.2 Limiter Cushion Threshold .................................................................................................. 53
7.23.3 Limiter Soft Ramp Disable ................................................................................................... 53
7.23.4 Limiter Zero Cross Disable .................................................................................................. 54
7.24 Limiter Control 2, Release Rate (Address 28h) ........................................................................... 54
7.24.1 Peak Detect and Limiter ...................................................................................................... 54
7.24.2 Peak Signal Limit All Channels ........................................................................................... 54
7.24.3 Limiter Release Rate ........................................................................................................... 54
7.25 Limiter Attack Rate (Address 29h) ............................................................................................... 55
7.25.1 Limiter Attack Rate .............................................................................................................. 55
7.26 Status (Address 2Eh) (Read Only) .............................................................................................. 55
7.26.1 Serial Port Clock Error (Read Only) .................................................................................... 55
7.26.2 DSP Engine Overflow (Read Only) ..................................................................................... 55
7.26.3 PCMx Overflow (Read Only) ............................................................................................... 56
7.27 Battery Compensation (Address 2Fh) .......................................................................................... 56
7.27.1 Battery Compensation ......................................................................................................... 56
7.27.2 VP Monitor ........................................................................................................................... 56
7.27.3 VP Reference ...................................................................................................................... 57
7.28 VP Battery Level (Address 30h) (Read Only) .............................................................................. 57
7.28.1 VP Voltage Level (Read Only) ............................................................................................ 57
7.29 Speaker Status (Address 31h) (Read Only) ................................................................................ 57
7.29.1 Speaker Current Load Status (Read Only) ......................................................................... 57
7.29.2 SPKR/HP Pin Status (Read Only) ....................................................................................... 58
7.30 Charge Pump Frequency (Address 34h) ..................................................................................... 58
7.30.1 Charge Pump Frequency .................................................................................................... 58
8. ANALOG PERFORMANCE PLOTS .................................................................................................... 59
8.1 Headphone THD+N versus Output Power Plots ............................................................................ 59
9. EXAMPLE SYSTEM CLOCK FREQUENCIES .................................................................................... 61
9.1 Auto Detect Enabled ................................................................................................................... 61
9.2 Auto Detect Disabled ................................................................................................................... 61
10. PCB LAYOUT CONSIDERATIONS ................................................................................................... 62
10.1 Power Supply, Grounding ............................................................................................................ 62
10.2 QFN Thermal Pad ........................................................................................................................ 62