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3 / 68 page DS792F1 3 CS43L22 Confidential Draft 10/7/08 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 .............................................................................. 17 SWITCHING SPECIFICATIONS - I²C CONTROL PORT .................................................................... 18 DC ELECTRICAL CHARACTERISTICS .............................................................................................. 19 DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS .................................................... 19 POWER CONSUMPTION ................................................................................................................... 20 4. APPLICATIONS ................................................................................................................................... 21 4.1 Overview ........................................................................................................................................ 21 4.1.1 Basic Architecture ................................................................................................................. 21 4.1.2 Line Inputs ............................................................................................................................. 21 4.1.3 Line & Headphone Outputs ................................................................................................... 21 4.1.4 Speaker Driver Outputs ......................................................................................................... 21 4.1.5 Fixed Function DSP Engine .................................................................................................. 21 4.1.6 Beep Generator ..................................................................................................................... 21 4.1.7 Power Management .............................................................................................................. 21 4.2 DSP Engine .................................................................................................................................. 22 4.2.1 Beep Generator ..................................................................................................................... 23 4.2.2 Limiter .................................................................................................................................... 23 4.3 Analog Passthrough ....................................................................................................................... 25 4.4 Analog Outputs .............................................................................................................................. 26 4.5 PWM Outputs ................................................................................................................................. 27 4.5.1 Mono Speaker Output Configuration ..................................................................................... 28 4.5.2 VP Battery Compensation ..................................................................................................... 28 4.5.2.1 Maintaining a Desired Output Level ........................................................................... 28 4.6 Serial Port Clocking ....................................................................................................................... 30 4.7 Digital Interface Formats ................................................................................................................ 31 4.7.1 DSP Mode ............................................................................................................................. 32 4.8 Initialization .................................................................................................................................... 32 4.9 Recommended Power-Up Sequence ............................................................................................ 32 4.10 Recommended Power-Down Sequence ...................................................................................... 32 4.11 Required Initialization Settings ..................................................................................................... 33 5. CONTROL PORT OPERATION ........................................................................................................... 34 5.0.1 I²C Control ............................................................................................................................. 34 5.0.2 Memory Address Pointer (MAP) ............................................................................................ 35 5.0.2.1 Map Increment (INCR) ............................................................................................... 35 6. REGISTER QUICK REFERENCE ........................................................................................................ 36 7. REGISTER DESCRIPTION .................................................................................................................. 38 7.1 Chip I.D. and Revision Register (Address 01h) (Read Only) ......................................................... 38 7.1.1 Chip I.D. (Read Only) ............................................................................................................ 38 7.1.2 Chip Revision (Read Only) .................................................................................................... 38 7.2 Power Control 1 (Address 02h) ...................................................................................................... 38 |
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