Datasheet

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+
+
−
Z
−1
+ +
+
+
−
Z
−1
In
8 f
S
21-Bit
Out
64 f
S
+
+
Z
−1
B0008-01
+
5-Level Quantizer
0
1
2
3
4
f − Frequency − kHz
−150
−140
−130
−120
−110
−100
−90
−80
−70
−60
−50
−40
−30
−20
−10
0
0 5 10 15 20 25 30
Gain − dB
G040
PCM3002
PCM3003
SBAS079A – OCTOBER 2000 – REVISED OCTOBER 2004
THEORY OF OPERATION (continued)
Figure 53. Five-Level Delta-Sigma Modulator Block Diagram
Figure 54. Quantization Noise Spectrum
35