Datasheet
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PCM2901/2903 BLOCK DIAGRAM OF ANALOG FRONT-END (RIGHT CHANNEL)
V R
IN
13
14
V
COM
4.7 Fm
30kW
+
+
–
–
Delta-Sigma
Modulator
(+)
(–)
Reference
(V /2)
CCC
10 Fm
+
+
S0011-07
TYPICAL CHARACTERISTICS
ADC
0.003
0.004
0.005
0.006
0.007
0.008
0.009
0.010
−50 −25 0 25 50 75 100
T
A
− Free-Air Temperature − °C
THD+N − Total Harmonic Distortion + Noise − %
G001
85
87
89
91
93
95
−50 −25 0 25 50 75 100
T
A
− Free-Air Temperature − °C
Dynamic Range and SNR − dB
SNR
Dynamic Range
G002
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
All specifications at T
A
= 25 ° C, V
DD
= V
CCC
= V
CCP1
= V
CCP2
= V
CCx
= 3.3 V, f
s
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unless
otherwise noted.
TOTAL HARMONIC DISTORTION + NOISE at – 0.5 dB DYNAMIC RANGE and SNR
vs vs
FREE-AIR TEMPERATURE FREE-AIR TEMPERATURE
Figure 1. Figure 2.
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