CS43L22 datasheet(5/68 Pages) CIRRUS

5 / 68 page

DS792F1

CS43L22

Confidential Draft

10/7/08

7.16 Beep Volume & Off Time (Address 1Dh) ..................................................................................... 49

7.16.1 Beep Off Time ..................................................................................................................... 49

7.16.2 Beep Volume ....................................................................................................................... 50

7.17 Beep & Tone Configuration (Address 1Eh) .................................................................................. 50

7.17.1 Beep Configuration .............................................................................................................. 50

7.17.2 Beep Mix Disable ................................................................................................................ 50

7.17.3 Treble Corner Frequency .................................................................................................... 51

7.17.4 Bass Corner Frequency ...................................................................................................... 51

7.17.5 Tone Control Enable ........................................................................................................... 51

7.18 Tone Control (Address 1Fh) ........................................................................................................ 51

7.18.1 Treble Gain .......................................................................................................................... 51

7.18.2 Bass Gain ............................................................................................................................ 52

7.19 Master Volume Control: MSTA (Address 20h) & MSTB (Address 21h) ....................................... 52

7.19.1 Master Volume Control ........................................................................................................ 52

7.20 Headphone Volume Control: HPA (Address 22h) & HPB (Address 23h) .................................... 52

7.20.1 Headphone Volume Control ................................................................................................52

7.21 Speaker Volume Control: SPKA (Address 24h) & SPKB (Address 25h) ..................................... 53

7.21.1 Speaker Volume Control ..................................................................................................... 53

7.22 PCM Channel Swap (Address 26h) ............................................................................................. 53

7.22.1 PCM Channel Swap ............................................................................................................ 53

7.23 Limiter Control 1, Min/Max Thresholds (Address 27h) ................................................................. 54

7.23.1 Limiter Maximum Threshold ................................................................................................ 54

7.23.2 Limiter Cushion Threshold .................................................................................................. 54

7.23.3 Limiter Soft Ramp Disable ................................................................................................... 54

7.23.4 Limiter Zero Cross Disable .................................................................................................. 55

7.24 Limiter Control 2, Release Rate (Address 28h) ........................................................................... 55

7.24.1 Peak Detect and Limiter ...................................................................................................... 55

7.24.2 Peak Signal Limit All Channels ........................................................................................... 55

7.24.3 Limiter Release Rate ........................................................................................................... 55

7.25 Limiter Attack Rate (Address 29h) ............................................................................................... 56

7.25.1 Limiter Attack Rate .............................................................................................................. 56

7.26 Status (Address 2Eh) (Read Only) .............................................................................................. 56

7.26.1 Serial Port Clock Error (Read Only) .................................................................................... 56

7.26.2 DSP Engine Overflow (Read Only) ..................................................................................... 56

7.26.3 PCMx Overflow (Read Only) ...............................................................................................57

7.27 Battery Compensation (Address 2Fh) .......................................................................................... 57

7.27.1 Battery Compensation ......................................................................................................... 57

7.27.2 VP Monitor ........................................................................................................................... 57

7.27.3 VP Reference ...................................................................................................................... 58

7.28 VP Battery Level (Address 30h) (Read Only) .............................................................................. 58

7.28.1 VP Voltage Level (Read Only) ............................................................................................58

7.29 Speaker Status (Address 31h) (Read Only) ................................................................................ 58

7.29.1 Speaker Current Load Status (Read Only) ......................................................................... 58

7.29.2 SPKR/HP Pin Status (Read Only) ....................................................................................... 59

7.30 Charge Pump Frequency (Address 34h) ..................................................................................... 59

7.30.1 Charge Pump Frequency .................................................................................................... 59

8. ANALOG PERFORMANCE PLOTS ....................................................................................................60

8.1 Headphone THD+N versus Output Power Plots ............................................................................ 60

9. EXAMPLE SYSTEM CLOCK FREQUENCIES .................................................................................... 62

9.1 Auto Detect Enabled

................................................................................................................... 62

9.2 Auto Detect Disabled

................................................................................................................... 62

10. PCB LAYOUT CONSIDERATIONS ................................................................................................... 63

10.1 Power Supply, Grounding ............................................................................................................ 63

10.2 QFN Thermal Pad ........................................................................................................................ 63

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