Cirrus Logic CS4373A - Manual (Page 7)

CS4373A
DS699F2 7
AC DIFFERENTIAL MODES 1, 2, 3
Notes: 10. Maximum amplitude for operation above 100 Hz. A reduced amplitude for higher frequencies is required
to guarantee stability of the low-power delta-sigma architecture.
11. Full-scale accuracy compares the defined full-scale 1/1 amplitude to the measured 1/1 amplitude.
Specification is for unloaded outputs. Applying a differential load lowers the output amplitude ratiometric
to the differential output impedance.
12. Relative accuracy compares the measured 1/2,1/4,1/8,1/16,1/32,1/64 amplitude to the measured 1/1
amplitude.
13. Common mode voltage is defined as [(SIG+) + (SIG-)] / 2.
14. Specification is for the parameter over the specified temperature range and is for the device only. It does
not include the effects of external components.
Parameter Symbol Min Typ Max Unit
AC Differential Characteristics
Full-scale Differential AC Output 1/1
1/2
1/4
1/8
1/16
1/32
1/64
VAC
FS
-
-
-
-
-
-
- 5
2.5
1.25
625
312.5
156.25
78.125
-
-
-
-
-
-
- V
pp
V
pp
V
pp
mV
pp
mV
pp
mV
pp
mV
pp
Full-scale Bandwidth ( Note 8) VAC
BW
- - 100 Hz
Impulse Amplitude ( Note 8, 10 ) VAC
IMP
- - -20 dBfs
AC Differential Accuracy
Full-scale Accuracy 1/1
( Note 3 , 11 )
VAC
ABS
- 0.5 - 0.2 0.2 %FS
Relative Accuracy 1/2
( Note 12 ) 1/4
1/8
1/16
1/32
1/64
VAC
REL
- 0.2
-
-
-
-
-
± 0.1
± 0.1
± 0.1
- 0.1 ± 0.2
- 0.2 ± 0.3
- 0.5 ± 0.5
0.2
-
-
-
-
-
%
%
%
%
%
%
Full-scale Drift ( Note 14 ) VAC
TC
- 25 -
µV/°C
DC Common Mode Characteristics
Common Mode ( Note 13) VAC
CM
- (VA-)+2.35 - V
Common Mode Drift ( Note 13 , 14 ) VAC
CMTC
- 300 -
µV/°C