Analog Output Characteristics (Automotive Grade); Figure 5. Equivalent Output Test Load - Cirrus Logic CDB4244 Manual

ANALOG OUTPUT CHARACTERISTICS (AUTOMOTIVE GRADE)

Test Conditions (unless otherwise specified): Device configured as shown in
VA = 3.3 VDC, 1 for VA = 5.0 VDC.; T
Measurement Bandwidth is 20 Hz to 20 kHz; Specifications apply to all channels unless otherwise indicated; all
Power Down DACx bits = 0. See
Parameter
Dynamic Performance
Dynamic Range
18 to 24-Bit
16-Bit
Total Harmonic Distortion + Noise
Full-scale Output Voltage
Interchannel Isolation (1 kHz)
Interchannel Gain Mismatch
Gain Drift
AC-Load Resistance (R
L
Load Capacitance (C )(Note 20)
L
Parallel DC-Load Resistance(Note 21)
Output Impedance
PSRR (Note 22)
Notes:
19. One LSB of triangular PDF dither added to data.
20. Loading configuration is given in
21. Parallel combination of all DAC DC loads. See
22. Valid with the recommended capacitor values on FILT+ and VQ. See
DS900PP2
= -40 to +105 C; Full-scale 1 kHz input sine wave; Sample Rate = 48 kHz;
A
(Note 20).
VA, VREF= 3.3 V
(Differential/Single-ended)
Min
A-weighted 98/94
unweighted 95/91
A-weighted 87
unweighted 84
-
1.48•VA/
0.74•VA
-
-
-
)(Note 20) 3
-
10
-
1 kHz -
60 Hz -
Figure 5
AOUTx
GND

Figure 5. Equivalent Output Test Load

(Differential/Single-ended)
Typ Max
106/102 - 101/97
103/99 -
95 -
92 -
-90/-88 -82/-80
1.56•VA/ 1.64•VA/ 1.48•VA/
0.78•VA 0.82•VA 0.74•VA
100 -
0.1 0.25
±100 -
- -
- 100
- -
100 -
60 -
60 -
below.
22 µF
R C
L
Section 4.2.3.
Section 2. on page 7. VA_SEL
VA, VREF= 5.0 V
Min Typ Max
109/105 -
98/94 106/102 -
87 95 -
84 92 -
- -90/-88 -82/-80
1.56•VA/ 1.64•VA/
0.78•VA 0.82•VA
- 100 -
- 0.1 0.25
- ±100 -
3 - -
- - 100
10 - -
- 100 -
- 60 -
- 60 -
V
OUT
L
Figure 4 for test configuration.
CS4244
= 0 for
Unit
dB
dB
dB
dB
dB
Vpp
dB
dB
ppm/°C
k
pF
k

dB
dB
16