3 dac analog characteristics - commercial (-czz), Ed in, Dac analog characteristics – Cirrus Logic CS4349 User Manual
Page 9: Cs4349
DS782F2
9
CS4349
2.3
DAC Analog Characteristics - Commercial (-CZZ)
Test conditions (unless otherwise specified): VLS = VLC = 3.3 V; T
A
= 25° C; input test signal is a 997 Hz
sine wave;
Valid with the recommended capacitor values on VFILT, VQ, and VBIAS and output circuit as shown in the
and
; Fs = 48 kHz, 96 kHz, and 192 kHz; measurement
bandwidth 10 Hz to 20 kHz.
Notes: 3. One LSB of triangular PDF dither is added to data. See
for details on
THD+N performance.
4. R
L
and C
L
represent the minimum resistance and maximum capacitance required for the CS4349’s in-
ternal op-amp to remain stable. See
and
for more details.
Table 4. DAC Analog Characteristics - Commercial (-CZZ)
Parameter
Symbol
Min
Typ
Max
Unit
VA = 5.0 V
Dynamic Range
24-bit A-Weighted
unweighted
16-bit A-Weighted
unweighted
98
95
-
-
101
98
95
92
-
-
-
-
dB
dB
dB
dB
Total Harmonic Distortion + Noise
24-bit 0 dB
-20 dB
-60 dB
16-bit 0 dB
-20 dB
-60 dB
THD+N
-
-
-
-
-
-
-
-91
-78
-38
-90
-72
-32
-85
-
-35
-
-
-
dB
dB
dB
dB
dB
dB
VA = 3.3 V
Dynamic Range
24-bit A-Weighted
unweighted
16-bit A-Weighted
unweighted
98
95
-
-
101
98
95
92
-
-
-
-
dB
dB
dB
dB
Total Harmonic Distortion + Noise
24-bit 0 dB
-2 dB
-20 dB
-60 dB
16-bit 0 dB
-20 dB
-60 dB
THD+N
-
-
-
-
-
-
-
-86
-91
-78
-38
-83
-72
-32
-79
-
-
-35
-
-
-
dB
dB
dB
dB
dB
dB
dB
VA = 5.0 to 3.3 V
Interchannel Isolation
(1 kHz)
-
100
-
dB
DC Accuracy
Interchannel Gain Mismatch
-
0.1
0.25
dB
Gain Drift
-
-400
-
ppm/°C
Analog Output
Full Scale Output Voltage
2.70
2.78
2.97
Vpp
Quiescent Voltage
V
Q
-
0.5•VA
-
VDC
Max DC Current draw from an AOUT pin
I
OUTmax
-
10
-
A
Max Current draw from VQ
I
Qmax
-
100
-
A
Max AC-Load Resistance
R
L
-
3
-
k
Max Load Capacitance
C
L
-
100
-
pF
Output Impedance
Z
OUT
-
100
-