PCM1800_16 Datasheet, PDF (7/27 Pages) Texas Instruments – STEREO ANALOG-TO-DIGITAL CONVERTER

PCM1800
www.ti.com ............................................................................................................................................... SBAS071B – OCTOBER 2000 – REVISED AUGUST 2008
ANALOG FRONT-END (Single Channel)
C_EXT
470 pF
1.0 µF
V_INL ^{30 kΩ}
1
−
+
+
4.7 µF ⁺
4.7 µF
+
V_REF1
2
REFCOM
3
V_REF2
4
−
+
V_REF
C_INPL ₂₂
21 ^CIN^NL
1 kΩ
1 kΩ
(+)
Delta-Sigma
(−) Modulator
TYPICAL PERFORMANCE CURVES
S0011-01
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
0.010
THD+N
vs
TEMPERATURE
4
DYNAMIC RANGE AND SNR
vs
TEMPERATURE
98
98
0.008
0.006
0.004
−60 dB
−0.5 dB
3
96
Dynamic Range
96
SNR
2
94
94
1
92
92
0.002
−25
0
25
50
75
T_A − Free-Air Temperature − °C
Figure 1.
0
100
G001
90
−25
0
25
50
75
T_A − Free-Air Temperature − °C
Figure 2.
90
100
G002
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