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CDB42L52 Datasheet(PDF) 3 Page - Cirrus Logic |
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CDB42L52 Datasheet(HTML) 3 Page - Cirrus Logic |
3 / 82 page DS680A1 3 CS42L52 TABLE OF CONTENTS 1. PIN DESCRIPTIONS .............................................................................................................................. 8 1.1 I/O Pin Characteristics ...................................................................................................................... 9 2. TYPICAL CONNECTION DIAGRAM ................................................................................................... 10 3. CHARACTERISTIC AND SPECIFICATIONS ...................................................................................... 11 RECOMMENDED OPERATING CONDITIONS ................................................................................... 11 ABSOLUTE MAXIMUM RATINGS .......................................................................................................11 ANALOG INPUT CHARACTERISTICS (COMMERCIAL - CNZ) .......................................................... 12 ANALOG INPUT CHARACTERISTICS (AUTOMOTIVE - DNZ) .......................................................... 13 ADC DIGITAL FILTER CHARACTERISTICS ....................................................................................... 14 ANALOG OUTPUT CHARACTERISTICS (COMMERCIAL - CNZ) ...................................................... 15 ANALOG OUTPUT CHARACTERISTICS (AUTOMOTIVE - DNZ) ...................................................... 16 ANALOG PASSTHRU CHARACTERISTICS ....................................................................................... 17 PWM OUTPUT CHARACTERISTICS (Note 9) .................................................................................... 17 LINE OUTPUT VOLTAGE LEVEL CHARACTERISTICS ..................................................................... 18 HEADPHONE OUTPUT POWER CHARACTERISTICS ...................................................................... 19 COMBINED DAC INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE .............................. 20 SWITCHING SPECIFICATIONS - SERIAL PORT ............................................................................... 21 SWITCHING SPECIFICATIONS - I²C CONTROL PORT ..................................................................... 22 DC ELECTRICAL CHARACTERISTICS .............................................................................................. 23 DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS ..................................................... 23 POWER CONSUMPTION .................................................................................................................... 24 4. APPLICATIONS ................................................................................................................................... 25 4.1 Overview ......................................................................................................................................... 25 4.1.1 Basic Architecture ................................................................................................................. 25 4.1.2 Line & MIC Inputs .................................................................................................................. 25 4.1.3 Line & Headphone Outputs ................................................................................................... 25 4.1.4 Speaker Driver Outputs ......................................................................................................... 25 4.1.5 Fixed Function DSP Engine .................................................................................................. 25 4.1.6 Beep Generator ..................................................................................................................... 25 4.1.7 Power Management .............................................................................................................. 25 4.2 Analog Inputs ................................................................................................................................. 26 4.2.1 MIC Inputs ............................................................................................................................. 27 4.2.2 Automatic Level Control (ALC) .............................................................................................. 27 4.2.3 Noise Gate ............................................................................................................................ 28 4.3 Analog Outputs .............................................................................................................................. 29 4.3.1 Beep Generator ..................................................................................................................... 30 4.3.2 Limiter .................................................................................................................................... 31 4.4 Analog In to Analog Out Passthru .................................................................................................. 32 4.4.1 Overriding the ADC Power Down .......................................................................................... 32 4.4.2 Overriding the PGA Power Down .......................................................................................... 33 4.5 PWM Outputs ................................................................................................................................. 33 4.5.1 Mono Speaker Output Configuration ..................................................................................... 33 4.5.2 VP Battery Compensation ..................................................................................................... 33 4.5.2.1 Maintaining a Desired Output Level ........................................................................... 34 4.6 Serial Port Clocking ........................................................................................................................ 34 4.7 Digital Interface Formats ................................................................................................................ 36 4.7.1 DSP Mode ............................................................................................................................. 36 4.8 Initialization ..................................................................................................................................... 36 4.9 Recommended Power-Up Sequence ............................................................................................. 37 4.10 Recommended Power-Down Sequence ...................................................................................... 37 4.11 Control Port Operation .................................................................................................................. 38 4.11.1 I²C Control ........................................................................................................................... 38 |
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