Cirrus-logic CS42L52 Manuel d'utilisateur Page 64
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- Table des matières
- MARQUE LIVRES
- Stereo CODEC 1
- Stereo Headphone Amplifier 1
- System Features 2
- ™ Control Port Operation 2
- Applications 2
- General Description 2
- TABLE OF CONTENTS 3
- LIST OF TABLES 7
- LIST OF FIGURES 7
- 1. PIN DESCRIPTIONS 8
- DS680F2 9 9
- 1.1 I/O Pin Characteristics 10
- 2. TYPICAL CONNECTION DIAGRAM 11
- ABSOLUTE MAXIMUM RATINGS 12
- DS680F2 13 13
- VA = 2.5V VA = 1.8V 13
- 14 DS680F2 14
- PWM OUTPUT CHARACTERISTICS 17
- 0.022 F 18
- Repeated 21
- (Note 18) 22
- (Note 23) 23
- 4. APPLICATIONS 24
- 4.2 Analog Inputs 25
- 4.2.1 MIC Inputs 26
- 4.2.3 Noise Gate 27
- 4.3 Analog Outputs 28
- 4.3.1 Beep Generator 29
- 4.3.2 Limiter 30
- RRATE[5:0]ARATE[5:0] 31
- 4.5 PWM Outputs 32
- 4.5.2 VP Battery Compensation 33
- 4.6 Serial Port Clocking 33
- 34 DS680F2 34
- 4.7.1 DSP Mode 35
- 4.8 Initialization 36
- 4.12 Control Port Operation 38
- 4.12.1 I²C Control 38
- 4.12.2.1 Map Increment (INCR) 39
- 5. REGISTER QUICK REFERENCE 40
- DS680F2 41 41
- 6. REGISTER DESCRIPTION 42
- 6.4.1 Headphone Power Control 44
- 6.4.2 Speaker Power Control 44
- 6.5.1 Auto-Detect 44
- 6.5.2 Speed Mode 45
- 6.5.3 32kHz Sample Rate Group 45
- 6.5.4 27 MHz Video Clock 45
- (Examples) 49
- 50 DS680F2 50
- INV_ADCx ADC Signal Polarity 51
- ADCxMUTE ADC Mute 51
- INV_PCMx PCM Signal Polarity 52
- MSTxMUTE Master Mute 52
- PASSxMUTE Passthrough Mute 52
- FREEZE Control Port Status 52
- 6.13.4 HP/Speaker De-emphasis 53
- 6.13.5 Digital Soft Ramp 53
- 6.13.6 Digital Zero Cross 53
- DS680F2 55 55
- 6.16.3 PGAx Volume 56
- 6.17.1 Passthrough x Volume 57
- 6.18.1 ADCx Volume 57
- 58 DS680F2 58
- 6.21.1 Beep Frequency 59
- 6.21.2 Beep On Time 60
- 6.22.1 Beep Off Time 60
- 6.22.2 Beep Volume 61
- 6.23.1 Beep Configuration 61
- 6.23.2 Beep Mix Disable 61
- 62 DS680F2 62
- 6.24.2 Bass Gain 63
- 6.25.1 Master Volume Control 63
- 6.28.1 PCM Mix Channel Swap 64
- 6.28.2 ADC Mix Channel Swap 64
- 6.33.1 ALC Release Rate 68
- 6.34.1 ALC Maximum Threshold 68
- 6.37.3 VP Reference 72
- 6.40.1 Charge Pump Frequency 73
- 7. ANALOG PERFORMANCE PLOTS 74
- 8.1 Auto Detect Enabled 76
- 8.2 Auto Detect Disabled 76
- 9. PCB LAYOUT CONSIDERATIONS 77
- 78 DS680F2 78
- 11.PARAMETER DEFINITIONS 79
- 12.PACKAGE DIMENSIONS 80
- THERMAL CHARACTERISTICS 80
- 13.ORDERING INFORMATION 81
- 14.REFERENCES 81
- 15.REVISION HISTORY 81
- 82 DS680F2 82
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