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Tables of Contents for Continuous-Time Sigma-Delta Modulation for A/d Conversion in Radio Receivers
Chapter/Section Title
Page #
Page Count
List of abbreviations
ix
List of symbols
xi
Preface
xiii
Introduction
1
8
The world of communication
1
2
Sigma-delta A/D conversion
3
2
System level simulation
5
1
Motivation and objectives
6
1
Organization of the work
6
3
References
8
1
A/D conversion in radio receivers
9
20
Introduction
9
1
From baseband to RF A/D conversion
10
4
Heterodyne receiver with baseband A/D conversion
11
2
Heterodyne receiver with IF digitizing
13
1
Receiver architecture with RF digitizing
14
1
Sigma-delta modulation in a heterodyne receiver
14
2
Performance parameters
16
6
Dynamic range
16
1
Linearity
17
2
Image rejection
19
2
Figure-of-merit
21
1
GSM and AM/FM radio specifications
22
2
Summary
24
5
References
26
3
Continuous-time sigma-delta modulation
29
44
Introduction
29
1
Theory of sigma-delta modulation
30
16
Oversampling and noise-shaping
30
3
Tones
33
4
Harmonic distortion
37
4
Intersymbol interference
41
2
Phase jitter
43
1
Aliasing
44
2
Linear stability analysis
46
7
Small signal stability
46
5
Large signal stability
51
2
High-frequency stability compensation
53
11
Feedforward compensation
53
6
Feedforward compensation and local feedback
59
1
Feedback compensation
60
1
Feedback compensation and local feedback
61
2
Feedforward versus feedback compensation
63
1
Quadrature sigma-delta modulation
64
9
Complex integrator
64
2
Complex filter design
66
4
References
70
3
Realization of an IF-to-baseband sigma-delta modulator
73
36
Introduction
73
1
Frequency translation in sigma-delta modulators
74
5
Mixer inside the sigma-delta loop
74
3
Mixer outside the sigma-delta loop
77
1
Mixer inside loop versus outside loop
78
1
IF mixer design
79
11
Mixer topology
79
1
Linearity performance
80
2
Local oscillator driver
82
6
Self-mixing
88
2
IF sigma-delta modulator design
90
9
IF sigma-delta modulator topology
90
2
Input filter stage design
92
4
Transconductance-C integrator
96
1
A/D and D/A converter
97
1
LO driver scheme
98
1
Experimental results
99
7
Test chip 1: Baseband sigma-delta modulator
100
2
Test chip 2: IF-to-baseband sigma-delta modulator
102
3
Performance summary
105
1
Conclusions
106
3
References
108
1
Realization of a quadrature sigma-delta modulator
109
34
Introduction
109
1
Image interference
110
1
Dynamic element matching
111
18
Complex data-controlled DEM algorithm
117
1
DEM implementation
118
5
Impedance mismatch of DEM and DAC switches
123
2
Charge injection of DEM and DAC switches
125
4
Quadrature sigma-delta modulator design
129
6
Topology
129
2
Input stage
131
1
Feedback and DEM circuit
132
3
Experimental results
135
4
Conclusions
139
4
References
141
2
Benchmark
143
10
Introduction
143
1
Benchmark of test chips
144
3
Conclusions
147
6
References
149
4
Index
153