CS42L51 Datasheet, PDF (13/83 Pages) Cirrus Logic – Low Power, Stereo CODEC with Headphone Amp

CS42L51
ANALOG INPUT CHARACTERISTICS (COMMERCIAL - CNZ)
(Test Conditions (unless otherwise specified): All supplies = VA = 2.5 V and 1.8 V; Input sine wave (relative to dig-
ital full-scale): 1 kHz through passive input filter; Measurement Bandwidth is 10 Hz to 20 kHz unless otherwise
specified. Sample Frequency = 48 kHz)
Parameter (Note 4)
Min
Analog In to ADC (PGA bypassed)
Dynamic Range
A-weighted 93
unweighted 90
Total Harmonic Distortion + Noise
-1 dBFS -
-20 dBFS -
-60 dBFS -
Analog In to PGA to ADC
Dynamic Range
PGA Setting: 0 dB
A-weighted 92
unweighted 89
PGA Setting: +12 dB
A-weighted 85
unweighted 82
Total Harmonic Distortion + Noise
PGA Setting: 0 dB
-1 dBFS -
-60 dBFS -
PGA Setting: +12 dB
-1 dBFS -
Analog In to MIC Pre-Amp(+16 dB) to PGA to ADC
Dynamic Range
PGA Setting: 0 dB
A-weighted -
unweighted -
Total Harmonic Distortion + Noise
PGA Setting: 0 dB
-1 dBFS -
Analog In to MIC Pre-Amp(+32 dB) to PGA to ADC
Dynamic Range
PGA Setting: 0 dB
A-weighted -
unweighted -
Total Harmonic Distortion + Noise
PGA Setting: 0 dB
-1 dBFS -
Other Characteristics
DC Accuracy
Interchannel Gain Mismatch
-
Gain Drift
-
VA = 2.5V
Typ
99
96
-86
-76
-36
98
95
91
88
-88
-35
-85
86
83
-76
78
74
-74
0.1
±100
Max
-
-
-80
-
-
-
-
-
-
-82
-
-79
-
-
-
-
-
-
-
-
Input
Interchannel Isolation
DAC Isolation (Note 5)
Full-scale Input Voltage (x•VA) (Note 7)
Input Impedance (Note 6)
ADC
PGA
MIC
-
-
0.70•VA
18
40
50
90
70
0.72•VA
-
-
-
-
-
0.75•VA
-
-
-
VA = 1.8V
Min Typ Max
90
96
-
87
93
-
-
-84
-78
-
-73
-
-
-33
-
89
95
-
86
92
-
82
88
-
79
85
-
-
-86
-80
-
-32
-
-
-83
-77
-
83
-
-
80
-
-
-74
-
-
75
-
-
71
-
-
-71
-
-
0.1
-
-
±100
-
-
-
0.70•VA
18
40
50
90
70
0.72•VA
-
-
-
-
-
0.75•VA
-
-
-
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ppm/°
C
dB
dB
Vpp
kΩ
kΩ
kΩ
DS679A2
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