Cirrus Logic CS43L22 - Manual (Page 3)

DS792F2 3
CS43L22
Confidential Draft
3/4/10
TABLE OF CONTENTS
1. PIN DESCRIPTIONS .............................................................................................................................. 7
1.1 I/O Pin Characteristics ..................................................................................................................... 8
2. TYPICAL CONNECTION DIAGRAM ..................................................................................................... 9
3. CHARACTERISTIC AND SPECIFICATIONS ...................................................................................... 10
RECOMMENDED OPERATING CONDITIONS .................................................................................. 10
ABSOLUTE MAXIMUM RATINGS ...................................................................................................... 10
ANALOG OUTPUT CHARACTERISTICS .......................................................................................... 11
ANALOG PASSTHROUGH CHARACTERISTICS .............................................................................. 12
PWM OUTPUT CHARACTERISTICS ................................................................................................. 13
HEADPHONE OUTPUT POWER CHARACTERISTICS ..................................................................... 14
LINE OUTPUT VOLTAGE LEVEL CHARACTERISTICS .................................................................... 15
COMBINED DAC INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE ............................. 15
SWITCHING SPECIFICATIONS - SERIAL PORT .............................................................................. 16
SWITCHING SPECIFICATIONS - I²C CONTROL PORT .................................................................... 17
DC ELECTRICAL CHARACTERISTICS .............................................................................................. 18
DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS .................................................... 18
POWER CONSUMPTION ................................................................................................................... 19
4. APPLICATIONS ................................................................................................................................... 20
4.1 Overview ........................................................................................................................................ 20
4.1.1 Basic Architecture ................................................................................................................. 20
4.1.2 Line Inputs ............................................................................................................................. 20
4.1.3 Line & Headphone Outputs ................................................................................................... 20
4.1.4 Speaker Driver Outputs ......................................................................................................... 20
4.1.5 Fixed Function DSP Engine .................................................................................................. 20
4.1.6 Beep Generator ..................................................................................................................... 20
4.1.7 Power Management .............................................................................................................. 20
4.2 DSP Engine .................................................................................................................................. 21
4.2.1 Beep Generator ..................................................................................................................... 22
4.2.2 Limiter .................................................................................................................................... 22
4.3 Analog Passthrough ....................................................................................................................... 24
4.4 Analog Outputs .............................................................................................................................. 25
4.5 PWM Outputs ................................................................................................................................. 26
4.5.1 Mono Speaker Output Configuration ..................................................................................... 27
4.5.2 VP Battery Compensation ..................................................................................................... 27
4.5.2.1 Maintaining a Desired Output Level ........................................................................... 27
4.6 Serial Port Clocking ....................................................................................................................... 29
4.7 Digital Interface Formats ................................................................................................................ 30
4.7.1 DSP Mode ............................................................................................................................. 31
4.8 Initialization .................................................................................................................................... 31
4.9 Recommended Power-Up Sequence ............................................................................................ 31
4.10 Recommended Power-Down Sequence ...................................................................................... 31
4.11 Required Initialization Settings ..................................................................................................... 32
5. CONTROL PORT OPERATION ........................................................................................................... 33
5.1 I²C Control ...................................................................................................................................... 33
5.1.1 Memory Address Pointer (MAP) ............................................................................................ 34
5.1.1.1 Map Increment (INCR) ............................................................................................... 34
6. REGISTER QUICK REFERENCE ........................................................................................................ 35
7. REGISTER DESCRIPTION .................................................................................................................. 37
7.1 Chip I.D. and Revision Register (Address 01h) (Read Only) ......................................................... 37
7.1.1 Chip I.D. (Read Only) ............................................................................................................ 37
7.1.2 Chip Revision (Read Only) .................................................................................................... 37
7.2 Power Control 1 (Address 02h) ...................................................................................................... 37