cs42l52 Cirrus Logic, Inc., cs42l52 Datasheet - Page 3

• Manufacturer Part Number: cs42l52
• Description: Low-power, Stereo Codec W/ Headphone & Speaker Amps
• Manufacturer: Cirrus Logic, Inc.

DS680F1
TABLE OF CONTENTS
1. PIN DESCRIPTIONS .............................................................................................................................. 8
2. TYPICAL CONNECTION DIAGRAM ................................................................................................... 10
3. CHARACTERISTIC AND SPECIFICATIONS ...................................................................................... 11
4. APPLICATIONS ................................................................................................................................... 25
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 PASSTHROUGH CHARACTERISTICS ............................................................................... 17
PWM OUTPUT CHARACTERISTICS .................................................................................................. 17
HEADPHONE OUTPUT POWER CHARACTERISTICS ...................................................................... 19
LINE OUTPUT VOLTAGE LEVEL CHARACTERISTICS ..................................................................... 20
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
1.1 I/O Pin Characteristics ...................................................................................................................... 9
4.1 Overview ......................................................................................................................................... 25
4.2 Analog Inputs ................................................................................................................................. 26
4.3 Analog Outputs .............................................................................................................................. 29
4.4 Analog In to Analog Out Passthrough ............................................................................................ 32
4.5 PWM Outputs ................................................................................................................................. 33
4.6 Serial Port Clocking ........................................................................................................................ 34
4.7 Digital Interface Formats ................................................................................................................ 36
4.8 Initialization ..................................................................................................................................... 37
4.9 Recommended Power-up Sequence .............................................................................................. 37
4.10 Recommended Power-down Sequence ....................................................................................... 37
4.11 Required Initialization Settings ..................................................................................................... 37
4.12 Control Port Operation .................................................................................................................. 38
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
4.2.1 MIC Inputs ............................................................................................................................. 27
4.2.2 Automatic Level Control (ALC) .............................................................................................. 27
4.2.3 Noise Gate ............................................................................................................................ 28
4.3.1 Beep Generator ..................................................................................................................... 30
4.3.2 Limiter .................................................................................................................................... 31
4.4.1 Overriding the ADC Power Down .......................................................................................... 32
4.4.2 Overriding the PGA Power Down .......................................................................................... 33
4.5.1 Mono Speaker Output Configuration ..................................................................................... 33
4.5.2 VP Battery Compensation ..................................................................................................... 33
4.7.1 DSP Mode ............................................................................................................................. 36
4.5.2.1 Maintaining a Desired Output Level ........................................................................... 34
5/13/08
CS42L52
3