CS4244 Datasheet, PDF (16/63 Pages) Cirrus Logic – 4 In/4 Out Audio CODEC with PCM and TDM Interfaces

CS4244
ANALOG OUTPUT CHARACTERISTICS (AUTOMOTIVE GRADE)
Test Conditions (unless otherwise specified): Device configured as shown in Section 2. on page 8. VA_SEL = 0 for
VA = 3.3 VDC, 1 for VA = 5.0 VDC.; T_A = -40 to +85 C; Full-scale 1 kHz input sine wave; Sample Rate = 48 kHz;
Measurement Bandwidth is 20 Hz to 20 kHz; Specifications apply to all channels unless otherwise indicated; all
Power Down DACx bits = 0. See (Note 19).
VA, VREF= 3.3 V
(Differential/Single-ended)
VA, VREF= 5.0 V
(Differential/Single-ended)
Parameter
Min
Dynamic Performance
Dynamic Range
18 to 24-Bit
16-Bit
A-weighted
unweighted
A-weighted
unweighted
98/94
95/91
87
84
Total Harmonic Distortion + Noise
-
Full-scale Output Voltage
1.48•VA/
0.74•VA
Interchannel Isolation (1 kHz)
-
Interchannel Gain Mismatch
-
Gain Drift
-
AC-Load Resistance (R_L)(Note 19)
3
Load Capacitance (C_L)(Note 19)
-
Parallel DC-Load Resistance(Note 20) 10
Output Impedance
-
PSRR (Note 21)
1 kHz -
60 Hz -
Typ
106/102
103/99
95
92
-90/-88
1.56•VA/
0.78•VA
100
0.1
±100
-
-
-
100
60
60
Max
-
-
-
-
-82/-80
1.64•VA/
0.82•VA
-
0.25
-
-
100
-
-
-
-
Min
101/97
98/94
87
84
-
1.48•VA/
0.74•VA
-
-
-
3
-
10
-
-
-
Typ
109/105
106/102
95
92
-90/-88
1.56•VA/
0.78•VA
100
0.1
±100
-
-
-
100
60
60
Max
-
-
-
-
-82/-80
1.64•VA/
0.82•VA
-
0.25
-
-
100
-
-
-
-
Unit
dB
dB
dB
dB
dB
Vpp
dB
dB
ppm/°C
k
pF
k

dB
dB
Notes:
18. One LSB of triangular PDF dither added to data.
19. Loading configuration is given in Figure 5 below.
AOUTx
22 µF
RL
VOUT
CL
GND
Figure 5. Equivalent Output Test Load
20. Parallel combination of all DAC DC loads. See Section 4.2.3.
21. Valid with the recommended capacitor values on FILT+ and VQ. See Figure 4 for test configuration.
DS900F2
16