Dac analog characteristics, Cs4354 dac analog characteristics – Cirrus Logic CS4354 User Manual
Page 6
6
DS895F2
CS4354
DAC ANALOG CHARACTERISTICS
Test conditions (unless otherwise specified): T
A
= 25 °C; VA = 5 V, VL = 3.3 V; GND = 0 V; FILT+, -VFILT, and
FLYP/N capacitors as shown in
; input test signal is a 997 Hz sine wave at 0 dBFS; measure-
ment bandwidth 20 Hz to 20 kHz.
Notes: 3.
Measured at the output of the external low-pass filter on AOUTx as shown in
4.
Measured between the AOUTx and GND pins.
5.
One LSB of triangular PDF dither is added to data.
6.
Does not include attenuation due to Z
OUT
. Additional impedance between the AOUTx pin and the load
will lower the voltage delivered to the load.
7.
V
PP
is the controlling specification. V
RMS
specification valid for sine wave signals only.
Note that for sine wave signals:
Parameter
Symbol
Min
Typ
Max
Unit
Dynamic Performance, Fs = 48, 96, and 192 kHz (Notes
,
)
Dynamic range
24-bit A-weighted
unweighted
16-bit A-weighted
unweighted
95
92
-
-
101
98
96
93
-
-
-
-
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
-
-
-
-
-
-
-86
-78
-38
-86
-73
-33
-80
-72
-32
-
-
-
dB
dB
dB
dB
dB
dB
Idle channel noise/signal-to-noise ratio
(A-weighted)
-
101
-
dB
Interchannel Isolation
(1 kHz)
-
100
-
dB
Analog Output
Full scale AOUTx output voltage
(Notes
)
0.38•VA
0.40•VA
0.42•VA
V
RMS
1.07•VA
1.13•VA
1.19•VA
V
pp
Interchannel gain mismatch
-
0.1
-
dB
Output offset
-
±1
±8
mV
Gain drift
-
100
-
ppm/°C
Output impedance
Z
OUT
-
100
-
Load resistance
R
L
3
-
-
k
Load capacitance
C
L
-
-
100
pF
V
RMS
V
pp
2 2
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