Cirrus Logic CS4244 - Manual (Page 11)

DS900F1 11
CS4244
ANALOG INPUT CHARACTERISTICS (COMMERCIAL GRADE)
Test Conditions (unless otherwise specified): Device configured as shown in Section 2. on page 7 . Input sine
wave: 1 kHz; VA_SEL = 0 for VA = 3.3 VDC, 1 for VA = 5.0 VDC.; T
A
= 25 C; Measurement Bandwidth is 20 Hz to
20 kHz unless otherwise specified; Sample Rate = 48 kHz; all Power Down ADCx bits = 0.
VA, VREF = 3.3 V VA, VREF = 5.0 V
Parameter Min Typ Max Min Typ Max Unit
Dynamic Range
A-weighted
unweighted
95
92 101
98
-
- 99
96 105
102 -
- dB
dB
Total Harmonic Distortion + Noise
-1 dBFS
-60 dBFS
-
- -95
-38 -89
-32 -
- -88
-42 -82
-36 dB
dB
Other Analog Characteristics
Interchannel Gain Mismatch
- 0.2 - - 0.2 - dB
Gain Drift - ±100 - - ±100 - ppm/°C
Offset Error (Note 13)
High Pass Filter On
High Pass Filter Off -
- 0.0001
0.25
-
- -
- 0.0001
0.25
-
- % Full Scale
% Full Scale
Interchannel Isolation - 90 - - 90 - dB
Full-scale Input Voltage
(Differential Inputs)
1.58•VA 1.66•VA 1.74•VA 1.58•VA 1.66•VA 1.74•VA Vpp
Input Impedance - 40 - - 40 - k 
Common Mode Rejection
(Differential Inputs) - 60 - - 60 - dB
PSRR (Note 14) 1 kHz
60 Hz
-
- 45
20 -
- -
- 45
20 -
- dB
dB