SBAS071B – OCTOBER 2000 – REVISED AUGUST 2008
...............................................................................................................................................
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TYPICAL PERFORMANCE CURVES (continued)
All specifications at T
A
= 25°C, V
DD
= V
CC
= 5 V, slave mode, f
S
= 44.1 kHz, 20-bit input data, and SYSCLK = 384 f
S
, unless
otherwise noted
THD+N
vs
POWER SUPPLY
THD+N − Total Harm. Dist. + Noise at −0.5 dB − %
THD+N − Total Harm. Dist. + Noise at −60 dB − %
0.010
4
98
DYNAMIC RANGE AND SNR
vs
POWER SUPPLY
98
Dynamic Range
96
Dynamic Range − dB
96
0.008
−60 dB
3
SNR
94
94
0.006
2
0.004
−0.5 dB
0.002
4.25
1
92
92
4.50
4.75
5.00
5.25
5.50
0
5.75
G003
90
4.25
4.50
4.75
5.00
5.25
5.50
90
5.75
G004
V
CC
− Supply Voltage − V
V
CC
− Supply Voltage − V
Figure 3.
THD+N
vs
SYSTEM CLOCK and SAMPLING FREQUENCY
THD+N − Total Harm. Dist. + Noise at −0.5 dB − %
THD+N − Total Harm. Dist. + Noise at −0.5 dB − %
THD+N − Total Harm. Dist. + Noise at −60 dB − %
0.010
4
0.010
Figure 4.
THD+N
vs
OUTPUT DATA RESOLUTION
THD+N − Total Harm. Dist. + Noise at −60 dB − %
G006
4
0.008
44.1 kHz
−60 dB
0.006
32 kHz
48 kHz
44.1 kHz
3
0.008
−60 dB
3
2
0.006
2
−0.5 dB
0.004
−0.5 dB
32 kHz
48 kHz
0.002
256 f
S
384 f
S
System Clock
512 f
S
1
0.004
1
0
0.002
16-Bit
20-Bit
Resolution
0
G005
Figure 5.
Figure 6.
8
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SNR − Signal-to-Noise Ratio − dB
BURR-BROWN [ BURR-BROWN CORPORATION ]
