Owner's manual
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
typical connection diagram in Figure 10 and
Figure 17; 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 Figure 3, Figure 4, and Figure 5 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 Figure 1 and Figure 2 for more details.
Table 4. DAC Analog Characteristics - Commercial (-CZZ)
Parameter Symbol Min Typ Max Unit
VA = 5.0 V
Dynamic Range (Note 3) 24-bit A-Weighted
unweighted
16-bit A-Weighted
unweighted
98
95
-
-
101
98
95
92
-
-
-
-
dB
dB
dB
dB
Total Harmonic Distortion + Noise (Note 3)
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 (Note 3) 24-bit A-Weighted
unweighted
16-bit A-Weighted
unweighted
98
95
-
-
101
98
95
92
-
-
-
-
dB
dB
dB
dB
Total Harmonic Distortion + Noise (Note 3)
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 (Note 4) R
L
-3-k
Max Load Capacitance (Note 4) C
L
- 100 - pF
Output Impedance Z
OUT
- 100 -