CS4245_07 Datasheet, PDF (15/57 Pages) Cirrus Logic – 104 dB, 24-Bit, 192 kHz Stereo Audio CODEC

ADC ANALOG CHARACTERISTICS
(Continued)
CS4245
Microphone-Level Inputs
Commercial Grade
Parameter
Symbol Min Typ Max
Dynamic Performance for VA = 4.75 V to 5.25 V
Dynamic Range
PGA Setting: -12 dB to 0 dB
A-weighted
unweighted
77
83
-
74
80
-
Automotive Grade
Min Typ Max Unit
75
83
72
80
-
dB
-
dB
PGA Setting: +12 dB
A-weighted
unweighted
65
71
-
63
71
-
dB
62
68
-
60
68
-
dB
Total Harmonic Distortion + Noise (Note 12)
PGA Setting: -12 dB to 0 dB
-1 dB
-
-80
-74
-
-80
-72
dB
-20 dB
-60 dB
THD+N
-
-
-60
-20
-
-
-
-60
-
dB
-
-20
-
dB
PGA Setting: +12 dB
-1 dB
-
-68
-
Dynamic Performance for VA = 3.13 V to 3.46 V
-
-68
-
dB
Dynamic Range
PGA Setting: -12 dB to 0 dB
A-weighted
unweighted
77
83
-
75
83
-
dB
74
80
-
72
80
-
dB
PGA Setting: +12 dB
A-weighted
unweighted
65
71
-
63
71
-
dB
62
68
-
60
68
-
dB
Total Harmonic Distortion + Noise (Note 12)
PGA Setting: -12 dB to 0 dB
-1 dB
-
-80
-74
-
-80
-72
dB
-20 dB
-60 dB
THD+N
-
-
-60
-20
-
-
-
-60
-
dB
-
-20
-
dB
PGA Setting: +12 dB
-1 dB
Interchannel Isolation
DC Accuracy
Gain Error
Gain Drift
Microphone-Level Input Characteristics
Full-scale Input Voltage
Input Impedance
(Note 14)
-
-68
-
-
80
-
-
-68
-
dB
-
80
-
dB
-
±5
-
-
±300
-
-
±5
-
%
-
±300
- ppm/°C
0.013*VA 0.017*VA 0.021*VA 0.013*VA 0.017*VA 0.021*VA V_pp
-
60
-
-
60
-
kΩ
12. Referred to the typical line-level full-scale input voltage
13. Valid for Double- and Quad-Speed Modes only.
14. Valid when the microphone-level inputs are selected.
DS656F2
15