Datasheet

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TYPICAL PERFORMANCE CURVES OF ADC SECTION
0.002
0.004
0.006
0.008
0.010
−25 0 25 50 75 100
T
A
− Free-Air Temperature − °C
THD+N − Total Harm. Dist. + Noise at FS − %
FS
4
3
2
0
1
−60 dB
G001
THD+N − Total Harm. Dist. + Noise at −60 dB − %
0.002
0.004
0.006
0.008
0.010
4.25 4.50 4.75 5.00 5.25 5.50 5.75
V
CC
− Supply Voltage − V
THD+N − Total Harm. Dist. + Noise at FS − %
4
3
2
0
1
THD+N − Total Harm. Dist. + Noise at −60 dB − %
G002
−60 dB
FS
90
92
94
96
98
4.25 4.50 4.75 5.00 5.25 5.50 5.75
V
CC
− Supply Voltage − V
Dynamic Range − dB
98
96
94
90
92
SNR − Signal-to-Noise Ratio − dB
G004
Dynamic Range
SNR
0.002
0.004
0.006
0.008
0.010
System Clock
THD+N − Total Harm. Dist. + Noise at FS − %
4
3
2
0
1
G003
THD+N − Total Harm. Dist. + Noise at −60 dB − %
512 f
S
256 f
S
384 f
S
44.1 kHz
FS
−60 dB
48 kHz
48 kHz
44.1 kHz
PCM3000
PCM3001
SBAS055A – OCTOBER 2000 – REVISED OCTOBER 2004
All specifications at T
A
= 25 ° C, V
CC
= V
DD
= 5 V, f
IN
= 1 kHz, f
S
= 44.1 kHz, 18-bit data, V
IN
= 2.9 Vp-p, and SYSCLK = 384 f
S
,
unless otherwise noted
THD+N THD+N
vs vs
TEMPERATURE POWER SUPPLY
Figure 1. Figure 2.
THD+N SNR AND DYNAMIC RANGE
vs vs
SYSTEM CLOCK AND SAMPLING FREQUENCY POWER SUPPLY
Figure 3. Figure 4.
8