Datasheet

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30 kΩ
1 kΩ
V
IN
L
V
REF
1
1
14
13
Delta-Sigma
Modulator
(+)
V
REF
V
REF
2
+
1 µF
4.7 µF
+
4.7 µF
+
+
−
(−)
+
−
1 kΩ
S0011-02
TYPICAL PERFORMANCE CURVES
ANALOG DYNAMIC PERFORMANCE
0.002
0.003
0.004
0.005
0.006
−25 0 25 50 75 100
T
A
− Free-Air Temperature − °C
THD+N − Total Harm. Dist. + Noise at −0.5 dB − %
−0.5 dB
3.0
2.8
2.6
2.2
2.4
−60 dB
G001
THD+N − Total Harm. Dist. + Noise at −60 dB − %
92
93
94
95
96
−25 0 25 50 75 100
T
A
− Free-Air Temperature − °C
Dynamic Range − dB
SNR
96
95
94
92
93
SNR − Signal-to-Noise Ratio − dB
G002
Dynamic Range
PCM1801
SBAS131C – OCTOBER 2000 – REVISED JULY 2007
ANALOG FRONT-END (Single Channel)
All specifications at T
A
= 25 ° C, V
DD
= V
CC
= 5 V, f
S
= 44.1 kHz, and SYSCLK = 384 f
S
, unless otherwise noted
TOTAL HARMONIC DISTORTION + NOISE DYNAMIC RANGE AND SIGNAL-TO-NOISE RATIO
vs vs
TEMPERATURE TEMPERATURE
Figure 1. Figure 2.
6
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