Analog Input Characteristics (Automotive Grade) - Cirrus Logic CS4244 Manual

ANALOG INPUT CHARACTERISTICS (AUTOMOTIVE GRADE)

Test Conditions (unless otherwise specified): Device configured as shown in
wave: 1 kHz; VA_SEL = 0 for VA = 3.3 VDC, 1 for VA = 5.0 VDC.; T
20 Hz to 20 kHz unless otherwise specified; Sample Rate = 48 kHz; all
Parameter
Dynamic Range
Total Harmonic Distortion + Noise
Other Analog Characteristics
Interchannel Gain Mismatch
Gain Drift
Offset Error (Note 13)
High Pass Filter On
High Pass Filter Off
Interchannel Isolation
Full-scale Input Voltage
(Differential Inputs)
Input Impedance
Common Mode Rejection
(Differential Inputs)
PSRR (Note 14)
Notes:
13. AINx+ connected to AINx-.
14. Valid with the recommended capacitor values on FILT+ and VQ. See
DS900F2
VA, VREF = 3.3 V
Min
A-weighted 93
unweighted 90
-1 dBFS -
-60 dBFS -
-
-
-
-
-
1.58•VA
-
-
1 kHz -
60 Hz -
= -40 to +85 C; Measurement Bandwidth is
A
Power Down ADCx
Typ Max Min
101 - 97
98 - 94
-95 -87
-38 -30
0.2 -
±100 -
0.0001 -
0.25 -
90 -
1.66•VA 1.74•VA 1.58•VA 1.66•VA 1.74•VA
40 -
60 -
45 -
20 -
Section 2. on page 8. Input sine
bits = 0.
VA, VREF = 5.0 V
Typ Max
105 -
102 -
- -88 -80
- -42 -34
- 0.2 -
- ±100 -
- 0.0001 -
- 0.25 -
- 90 -
- 40 -
- 60 -
- 45 -
- 20 -
Figure 4 for test configuration.
CS4244
Unit
dB
dB
dB
dB
dB
ppm/°C
% Full Scale
% Full Scale
dB
Vpp
k
dB
dB
dB
12