CS4349 Datasheet, PDF (9/40 Pages) Cirrus Logic – 192 kHz DAC w/ Volume Control and 1 Vrms @ 3.3 V

CS4349
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 con-
nection diagram in Figure 10 and Figure 17; Fs = 48 kHz, 96 kHz, and 192 kHz; measurement bandwidth 10 Hz to
20 kHz.
Parameter
Symbol
Min
VA = 5.0 V
Dynamic Range (Note 3)
24-bit A-Weighted
98
unweighted
95
16-bit A-Weighted
-
unweighted
-
Total Harmonic Distortion + Noise (Note 3)
-
24-bit
0 dB
-
-20 dB
-
-60 dB THD+N
-
16-bit
0 dB
-
-20 dB
-
-60 dB
-
VA = 3.3 V
Dynamic Range (Note 3)
24-bit A-Weighted
98
unweighted
95
16-bit A-Weighted
-
unweighted
-
Total Harmonic Distortion + Noise (Note 3)
24-bit
0 dB
-
-2 dB
-
-20 dB
-60 dB
THD+N
-
-
16-bit
0 dB
-
-20 dB
-
-60 dB
-
VA = 5.0 to 3.3 V
Interchannel Isolation
(1 kHz)
-
DC Accuracy
Interchannel Gain Mismatch
-
Gain Drift
-
Analog Output
Full Scale Output Voltage
2.70
Quiescent Voltage
V_Q
-
Max DC Current draw from an AOUT pin
I_OUTmax
-
Max Current draw from VQ
I_Qmax
-
Max AC-Load Resistance
(Note 4) R_L
-
Max Load Capacitance
(Note 4) C_L
-
Output Impedance
Z_OUT
-
Typ
101
98
95
92
-91
-78
-38
-90
-72
-32
101
98
95
92
-86
-91
-78
-38
-83
-72
-32
100
0.1
-400
2.78
0.5•VA
10
100
3
100
100
Max
-
-
-
-
-85
-
-35
-
-
-
-
-
-
-
-79
-
-
-35
-
-
-
-
0.25
-
2.97
-
-
-
-
-
-
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ppm/°C
Vpp
VDC
μA
μA
kΩ
pF
Ω
Notes: 3.
4.
One-half LSB of triangular PDF dither is added to data. See Figure 3, Figure 4, and Figure 5 for details
on THD+N performance.
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.
DS782F1
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