CS42L51_07 Datasheet, PDF (14/88 Pages) Cirrus Logic – Low Power, Stereo CODEC with Headphone Amp

CS42L51
ANALOG INPUT CHARACTERISTICS (AUTOMOTIVE - DNZ)
(Test Conditions (unless otherwise specified): Input sine wave (relative to 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 5)
Analog In to ADC
Dynamic Range
Total Harmonic Distortion + Noise
Analog In to PGA to ADC
Dynamic Range
PGA Setting: 0 dB
PGA Setting: +12 dB
VA = 2.5 V (nominal)
Min
Typ
Max
A-weighted 91
unweighted ⁷⁸
-1 dBFS
-
-20 dBFS
-
-60 dBFS
-
99
-
96
-
-86
-78
-76
-
-36
-
A-weighted 90
98
-
unweighted ⁸⁷
95
-
A-weighted ⁸³
91
-
unweighted 80
88
-
VA = 1.8 V (nominal)
Min
Typ
Max Unit
88
96
85
93
-
dB
-
dB
-
-84
-76
dB
-
-73
-
dB
-
-33
-
dB
87
95
84
92
80
88
77
85
-
dB
-
dB
-
dB
-
dB
Total Harmonic Distortion + Noise
PGA Setting: 0 dB
-1 dBFS
-
-60 dBFS
-
-88
-80
-
-35
-
-
PGA Setting: +12 dB
-1 dBFS
-
-85
-77
-
Analog In to MIC Pre-Amp (+16 dB) to PGA to ADC
Dynamic Range
PGA Setting: 0 dB
A-weighted
-
86
-
-
unweighted
-
83
-
-
Total Harmonic Distortion + Noise
PGA Setting: 0 dB
-1 dBFS
-
-76
-
-
Analog In to MIC Pre-Amp (+32 dB) to PGA to ADC
Dynamic Range
PGA Setting: 0 dB
A-weighted
-
78
-
-
unweighted
-
74
-
-
Total Harmonic Distortion + Noise
PGA Setting: 0 dB
-1 dBFS
-
-74
-
-
Other Characteristics
-86
-78
dB
-32
-
dB
-83
-75
dB
83
-
dB
80
-
dB
-74
-
dB
75
-
dB
71
-
dB
-71
-
dB
DC Accuracy
Interchannel Gain Mismatch
-
0.1
-
Gain Drift
-
±100
-
Offset Error
SDOUT Code with HPF On
-
352
-
-
0.1
-
dB
-
±100
- ppm/°C
-
352
-
LSB
Input
Interchannel Isolation
DAC Isolation (Note 4)
Full-scale Input Voltage
Input Impedance (Note 6)
-
90
-
-
90
-
dB
-
70
-
-
70
-
dB
ADC ^{0.74•VA 0.78•VA 0.82•VA 0.74•VA 0.78•VA 0.82•VA Vpp}
PGA (0 dB) ^{0.75•VA 0.794•VA 0.83•VA 0.75•VA 0.794•VA 0.83•VA Vpp}
MIC (+16 dB)
0.129•VA
0.129•VA
Vpp
MIC (+32 dB)
0.022•VA
0.022•VA
Vpp
ADC ¹⁸
-
PGA 40
-
MIC ⁵⁰
-
-
18
-
-
40
-
-
50
-
-
kΩ
-
kΩ
-
kΩ
4. Measured with DAC delivering full-scale output power into 16 Ω.
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DS679F1