CS4245
DAC ANALOG CHARACTERISTICS
Test Conditions (unless otherwise specified): AGND = DGND = 0 V; VA = 3.13 V to 5.25 V; VD = 3.13 V to 5.25 V
or VA + 0.25 V, whichever is less; VLS = VLC = 1.71 V to 5.25 V; T A = -10° to +70° C for Commercial or -40° to
+85° C for Automotive; Output test signal: 997 Hz full-scale sine wave; Test load R L = 3 k ? , C L = 10 pF (see
Figure 1 ), Fs = 48/96/192 kHz. Measurement Bandwidth 10 Hz to 20 kHz Synchronous mode; All Connections as
shown in Figure 12 on page 29 .
Commercial Grade
Automotive Grade
Parameter
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Dynamic Performance for VA = 4.75 V to 5.25 V
Dynamic Range
18 to 24-Bit
16-Bit
A-Weighted
unweighted
A-Weighted
unweighted
98
95
90
87
104
101
96
93
-
-
-
-
96
93
88
85
104
101
96
93
-
-
-
-
dB
dB
dB
dB
Total Harmonic Distortion + Noise
18 to 24-Bit
16-Bit
0 dB
-20 dB
-60 dB THD+N
0 dB
-20 dB
-60 dB
-
-
-
-
-
-
-90
-81
-41
-93
-73
-33
-84
-
-
-87
-
-
-
-
-
-
-
-
-90
-81
-41
-93
-73
-33
-82
-
-
-85
-
-
dB
dB
dB
dB
dB
dB
Dynamic Performance for VA = 3.13 V to 3.46 V
Dynamic Range
18 to 24-Bit
16-Bit
A-Weighted
unweighted
A-Weighted
unweighted
95
92
88
85
101
98
93
90
-
-
-
-
93
90
86
83
101
98
93
90
-
-
-
-
dB
dB
dB
dB
Total Harmonic Distortion + Noise
18 to 24-Bit
16-Bit
Interchannel Isolation
0 dB
-20 dB
-60 dB THD+N
0 dB
-20 dB
-60 dB
(1 kHz)
-
-
-
-
-
-
-
-87
-78
-38
-90
-70
-30
100
-79
-
-
-82
-
-
-
-
-
-
-
-
-
-
-87
-78
-38
-90
-70
-30
100
-77
-
-
-80
-
-
-
dB
dB
dB
dB
dB
dB
dB
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
-
-
0.1
100
0.25
-
-
-
0.1
100
0.25
-
dB
ppm/°C
Analog Output
Full Scale Output Voltage
0.60*VA 0.65*VA 0.70*VA 0.60*VA 0.65*VA 0.70*VA
V pp
DC Current draw from an AOUT pin
AC-Load Resistance
Load Capacitance
Output Impedance
I OUT
R L
C L
Z OUT
-
3
-
-
-
-
-
150
10
-
100
-
-
3
-
-
-
-
-
150
10
-
100
-
? A
k ?
pF
?
4. One-half LSB of triangular PDF dither added to data.
5. Guaranteed by design. The DC current draw represents the allowed current draw from the AOUT pin
due to typical leakage through the electrolytic DC blocking capacitors.
10
DS656F3
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