Cirrus Logic CS4265 - Manual (Page 15)

DS657F3 15
CS4265
ADC ANALOG CHARACTERISTICS
(Continued)
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.
Microphone-Level Inputs
Parameter Symbol Min Typ Max Unit
Dynamic Performance for VA = 4.75 V to 5.25 V
Dynamic Range
PGA Setting: -12 dB to 0 dB
A-weighted
unweighted
PGA Setting: +12 dB
A-weighted
unweighted
77
74
65
62
83
80
71
68
-
-
-
-
dB
dB
dB
dB
Total Harmonic Distortion + Noise (Note 12)
PGA Setting: -12 dB to 0 dB
-1 dB
-20 dB
-60 dB
PGA Setting: +12 dB
-1 dB
THD+N
-
-
-
-
-80
-60
-20
-68
-74
-
-
-
dB
dB
dB
dB
Dynamic Performance for VA = 3.13 V to 3.46 V
Dynamic Range
PGA Setting: -12 dB to 0 dB
A-weighted
unweighted
PGA Setting: +12 dB
A-weighted
unweighted
77
74
65
62
83
80
71
68
-
-
-
-
dB
dB
dB
dB
Total Harmonic Distortion + Noise (Note 12)
PGA Setting: -12 dB to 0 dB
-1 dB
-20 dB
-60 dB
PGA Setting: +12 dB
-1 dB
THD+N
-
-
-
-
-80
-60
-20
-68
-74
-
-
-
dB
dB
dB
dB
Interchannel Isolation - 80 - dB
DC Accuracy
Gain Error -  5 - %
Gain Drift -

300 - ppm/°C
Microphone-Level Input Characteristics
Full-scale Input Voltage 0.013*VA 0.017*VA 0.021*VA V
pp
Input Impedance (Note 14) - 60 - k