Cirrus-logic CS42L73 User Manual Page 22
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22 DS882F1
CS42L73
ANALOG INPUT TO SERIAL PORT CHARACTERISTICS
Test Conditions (unless otherwise specified): Connections to the CS42L73 are shown in the “Typical Connection Diagram” on
page 17; Input is a 1-kHz sine wave through the passive input filter shown in Figure 1; GND = AGND = PGND = CPGND =
DGND = 0 V; all voltages are with respect to ground (GND); VA = 1.80 V; T
A
= +25 C; Measurement Bandwidth is 20 Hz to
20 kHz; Fs = 48 kHz (Note 10); ASP is used and is in slave mode with Fs
ext
= 48 kHz; MIC_PREAMPx = +10 dB, PGAxVOL =
0 dB; Mixer Attenuation and Digital Volume = 0 dB, Digital Mute is disabled.
Parameters (Note 2) (Note 11) Min Typ Max Units
LINEINA/LINEINB to PGA to ADC
Dynamic Range
PGA Setting: 0 dB A-weighted
unweighted
85
82
91
88
-
-
dB
dB
PGA Setting: +12 dB A-weighted
unweighted
78
75
84
81
-
-
dB
dB
Total Harmonic Distortion + Noise
PGA Setting: 0 dB -1 dBFS
-60 dBFS
-
-
-85
-28
-79
-22
dB
dB
PGA Setting: +12 dB -1 dBFS
--81-75dB
Common Mode Rejection (Note 12)
-40-dB
MIC1/MIC2 to PREAMP to PGA to ADC, MIC_PREAMPx = +10 dB Gain
Dynamic Range (Note 13)
PGA Setting: 0 dB A-weighted
unweighted
-
-
88
86
-
-
dB
dB
PGA Setting: +12 dB A-weighted
unweighted
-
-
78
75
-
-
dB
dB
Total Harmonic Distortion + Noise
PGA Setting: 0 dB -1 dBFS
--77- dB
PGA Setting: +12 dB -1 dBFS
--64- dB
Common Mode Rejection (Note 12)
-40-dB
MIC1/MIC2 to PREAMP to PGA to ADC, MIC_PREAMPx = +20 dB Gain
Dynamic Range (Note 13)
PGA Setting: 0 dB A-weighted
unweighted
-
-
82
79
-
-
dB
dB
PGA Setting: +12 dB A-weighted
unweighted
-
-
70
67
-
-
dB
dB
Total Harmonic Distortion + Noise
PGA Setting: 0 dB -1 dBFS
--71- dB
PGA Setting: +12 dB -1 dBFS
--63- dB
Common Mode Rejection (Note 12)
-40-dB
DC Accuracy
Interchannel Gain Mismatch
-0.2-dB
Gain Drift
- ±100 - ppm/°C
Offset Error
- 352 - LSB
- Product Overview 1
- Ultralow Power Consumption 1
- Applications 1
- System Features 1
- General Description 3
- TABLE OF CONTENTS 4
- LIST OF FIGURES 9
- LIST OF TABLES 10
- 12 DS882F1 12
- DS882F1 13 13
- 1.3 Pin/Ball Descriptions 14
- DS882F1 15 15
- 2. TYPICAL CONNECTION DIAGRAM 17
- ABSOLUTE MAXIMUM RATINGS 20
- DC ELECTRICAL CHARACTERISTICS 21
- 22 DS882F1 22
- CHARACTERISTICS 24
- MIC BIAS CHARACTERISTICS 26
- --70-60dB 27
- 0.73•VA 0.79•VA 0.85•VA V 27
- Test Load 28
- Measurement 28
- FILTER CHARACTERISTICS 33
- POWER CONSUMPTION 34
- DMIC_SCLK 37
- = “s” or “m” 38
- Repeated 40
- 4. APPLICATIONS 41
- 4.5 Class H Amplifier 44
- 4.5.1 Power Control Options 44
- 48 DS882F1 48
- 4.5.3 Efficiency 49
- 4.6 DAC Limiter 49
- LIMRRATEx[2:0] 50
- LIMARATEx[2:0] 50
- 4.8 Serial Ports 51
- 4.8.1 Power Management 51
- 4.8.2 I/O 51
- 4.8.3 High-impedance Mode 52
- 4.8.4 Master and Slave Timing 52
- 4.8.4.1 SCLK = MCLK Modes 53
- 4.8.6 Formats 54
- 4.8.6.1 I²S Format 55
- 4.8.6.2 PCM Format 55
- 4.8.7 Mono/Stereo 57
- 4.8.8 Data Bit Depths 57
- 4.8.8.1 I²S Format Bit Depths 57
- 4.8.8.2 PCM Format Bit Depths 58
- 4.10 Input Paths 59
- DMIC_CLK 60
- 4.11 Digital Mixer 61
- 62 DS882F1 62
- 4.11.1 Mono and Stereo Paths 63
- 4.15 Interrupts 70
- 4.16 Control Port Operation 71
- 4.16.1 I²C Control 71
- 7 6 5 4 3 2 1 0 72
- 4.17 Fast Start Mode 73
- SPKLINEOUT 74
- EARSPKOUT 74
- Normal audioNo audio 75
- Clipped/Ramping audio 75
- 5. REGISTER QUICK REFERENCE 76
- DS882F1 77 77
- 78 DS882F1 78
- DS882F1 79 79
- 80 DS882F1 80
- (Read Only) 80
- 6. REGISTER DESCRIPTION 81
- 6.12.2 ASP Sample Rate 90
- 6.13.1 ASP Master/Slave Mode 90
- 6.14.5 VSP SDIN Location 92
- 6.15.1 VSP Master/Slave Mode 92
- 6.16.1 VSP Sample Rate 93
- 6.16.2 XSP Sample Rate 93
- 6.17.1 Digital Swap/Mono 94
- 6.17.2 Input Path Channel B=A 94
- 6.17.4 PGA Soft-Ramp 95
- 6.17.5 Analog Zero Cross 95
- 6.17.6 Digital Soft-Ramp 96
- 6.19.1 Mic PREAMP x Volume 98
- 6.19.2 PGAx Volume 98
- DS882F1 99 99
- DS882F1 103 103
- 104 DS882F1 104
- 76543210 110
- (Address 2Eh) 112
- 6.44.3 ALCx Soft-Ramp Disable 116
- 6.45.3 Mixer Soft-Ramp Enable 117
- 118 DS882F1 118
- DS882F1 119 119
- 120 DS882F1 120
- DS882F1 121 121
- 7. PCB LAYOUT CONSIDERATIONS 125
- 8. PERFORMANCE DATA 126
- DS882F1 127 127
- 128 DS882F1 128
- 8.3 Core Circuitry Attributes 129
- 8.3.1 ASRC Attributes 129
- 8.3.1.1 Response 129
- 8.3.1.2 Group Delay 130
- 8.3.1.3 Lock Time 130
- DS882F1 131 131
- 8.4.2 DAC HPF Response 132
- 8.4.4 Startup Times 133
- 9. PARAMETER DEFINITIONS 134
- 10.PACKAGE DIMENSIONS 135
- BUMP SIDESIDE VIEW 136
- TOP SIDE 136
- 11.THERMAL CHARACTERISTICS 137
- 12.ORDERING INFORMATION 137
- 13.REFERENCES 137
- 14.REVISION HISTORY 138
- DS882F1 139 139
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