CS4270_06 Datasheet, PDF (14/49 Pages) Cirrus Logic – 24-Bit, 192 kHz Stereo Audio CODEC

CS4270
ADC ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE
Measurement Bandwidth is 10 Hz to 20 kHz unless otherwise specified. Figure 18 input circuit, 1 kHz sine wave in.
Dynamic Performance for Automotive Grade
VA = 5 V
VA = 3.3 V
Single-Speed Mode
Dynamic Range
Fs = 48 kHz Symbol Min Typ Max Min Typ Max Unit
A-weighted
unweighted
97 105 -
94 102 -
dB
94 102 -
91 99
-
dB
Total Harmonic Distortion + Noise
(Note 10) THD+N
-1 dB
-
-95 -90
-
-92 -87
dB
-20 dB
-
-82
-
-
-79
-
dB
-60 dB
-
-42
-
-
-39
-
dB
Double-Speed Mode
Fs = 96 kHz
Dynamic Range
A-weighted
unweighted
40 kHz bandwidth unweighted
97 105 -
94 102 -
dB
94 102 -
91 99
-
dB
-
99
-
-
96
-
dB
Total Harmonic Distortion + Noise
(Note 10) THD+N
-1 dB
-
-95 -90
-
-92 -87
dB
40 kHz bandwidth
-20 dB
-60 dB
-1 dB
-
-82
-
-
-79
-
dB
-
-42
-
-
-39
-
dB
-
-95
-
-
-87
-
dB
Quad-Speed Mode
Fs = 192 kHz
Dynamic Range
A-weighted
unweighted
40 kHz bandwidth unweighted
97 105 -
94 102 -
dB
94 102 -
91 99
-
dB
-
99
-
-
96
-
dB
Total Harmonic Distortion + Noise
(Note 10) THD+N
-1 dB
-
-95 -90
-
-92 -87
dB
40 kHz bandwidth
-20 dB
-60 dB
-1 dB
-
-82
-
-
-79
-
dB
-
-42
-
-
-39
-
dB
-
-95
-
-
-87
-
dB
Dynamic Performance for Automotive Grade - All Modes
Parameter
Min
Typ
Max
Unit
Interchannel Isolation
-
90
-
dB
DC Accuracy
Interchannel Gain Mismatch
-
0.1
-
dB
Gain Error
Gain Drift
-3
-
+3
%
-
±100
-
ppm/°C
Analog Input Characteristics
Full-Scale Input Voltage
Input Impedance
0.53*VA
0.56*VA
0.58*VA
Vpp
-
300
-
kΩ
10. Referred to the typical full-scale input voltage.
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DS686PP1