CS53L21
ANALOG 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)
VA = 2.5 V (nominal)
Parameter (Note 4)
Analog In to ADC
Min
Typ
Max
Dynamic Range
A-weighted 91
99
-
unweighted 78
96
-
Total Harmonic Distortion + Noise
Analog In to PGA to ADC
-1 dBFS
-
-20 dBFS
-
-60 dBFS
-
-86
-78
-76
-
-36
-
Dynamic Range
PGA Setting: 0 dB
A-weighted 90
98
-
unweighted 87
95
-
PGA Setting: +12 dB
A-weighted 83
91
-
unweighted 80
88
-
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
Other Characteristics
-1 dBFS -
-74
-
DC Accuracy
Interchannel Gain Mismatch
-
0.1
-
Gain Drift
-
±100
-
Offset Error
SDOUT Code with HPF On
-
352
-
Input
Interchannel Isolation
Full-scale Input Voltage
ADC
PGA (0 dB)
MIC (+16 dB)
MIC (+32 dB)
-
0.74•VA
0.75•VA
90
0.78•VA
0.794•VA
0.129•VA
0.022•VA
-
0.82•VA
0.83•VA
Input Impedance (Note 5)
ADC 18
-
-
PGA 40
-
-
MIC 50
-
-
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
-
-86
-78
dB
-
-32
-
dB
-
-83
-75
dB
-
83
-
dB
-
80
-
dB
-
-74
-
dB
-
75
-
dB
-
71
-
dB
-
-71
-
dB
-
0.1
-
dB
-
±100
- ppm/°C
-
352
-
LSB
-
90
-
dB
0.74•VA 0.78•VA 0.82•VA Vpp
0.75•VA 0.794•VA 0.83•VA Vpp
0.129•VA
Vpp
0.022•VA
Vpp
18
-
40
-
50
-
-
kΩ
-
kΩ
-
kΩ
4. Referred to the typical full-scale voltage. Applies to all THD+N and Dynamic Range values in the table.
5. Measured between AINxx and AGND.
DS700PP1
13