Title:
High-resolution IF-to-baseband sigmadelta ADC for car radios
Personal Author:
Publication Information:
New York : Springer, 2008
Physical Description:
xii, 217 p. : ill. ; 24 cm.
ISBN:
9781402081637
Added Author:
Available:*
Library | Item Barcode | Call Number | Material Type | Item Category 1 | Status |
---|---|---|---|---|---|
Searching... | 30000010193015 | TK6562.D54 S54 2008 | Open Access Book | Book | Searching... |
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Summary
Summary
High-Resolution IF-to-Baseband SigmaDelta ADC for Car Radios addresses the theory, system level design and circuit implementation of a high-resolution continuous-time IF-to-baseband quadrature SigmaDelta ADC. The target application of this ADC is in AM/FM/IBOC car radios. The ADC achieves a dynamic range of 118dB, which eliminates the need for an IF VGA or AM channel filter in car radios.
Author Notes
Prof. Johan Huijsing is very well known within the Analog Circuits community, and he has (co-)authored and edited numerous books for Springer.
Table of Contents
Preface | p. XI |
1 Introduction | p. 1 |
1.1 Motivation | p. 1 |
1.2 Car Radio History | p. 5 |
References | p. 9 |
2 DSP Based Radio Receiver Architectures | p. 11 |
2.1 Radio Receiver Architectures | p. 12 |
2.1.1 Heterodyne and Homodyne Receivers | p. 12 |
2.1.2 DSP Based Radio Receiver Architectures | p. 14 |
2.2 ADC Performance Metrics | p. 17 |
2.2.1 Measures of Resolution | p. 17 |
2.2.2 Measures of Linearity | p. 18 |
2.3 Desensitization and Blocking | p. 21 |
2.4 Image Rejection | p. 24 |
2.5 Analog Radio Broadcasting | p. 29 |
2.6 Digital Radio Broadcasting | p. 30 |
2.7 Integrated Solutions for AM/FM Receivers | p. 32 |
References | p. 37 |
3 Continuous-Time ¿¿ Modulation | p. 41 |
3.1 Basic Principles | p. 42 |
3.1.1 Oversampling | p. 43 |
3.1.2 Noise Shaping | p. 46 |
3.1.3 Anti-alias Filtering | p. 48 |
3.2 High-Order ¿¿ Modulators | p. 50 |
3.3 Tonal Behaviour | p. 57 |
3.3.1 DAC Modulation at fs/2 | p. 59 |
3.3.2 2nd-Order Non-linearity | p. 61 |
3.4 Clock Jitter | p. 65 |
3.4.1 Random Jitter | p. 65 |
3.4.2 Deterministic Jitter | p. 68 |
References | p. 69 |
4 ¿¿ ADC Topologies for Radio Receivers | p. 71 |
4.1 Lowpass ¿¿ ADCs | p. 72 |
4.1.1 Feedback Compensation | p. 73 |
4.1.2 Feedforward Compensation | p. 78 |
4.1.3 Feedforward and Feedback Compensation | p. 81 |
4.1.4 Feedback Compensation with Local Feedforward Path | p. 84 |
4.1.5 Resonators and Local Feedback | p. 87 |
4.2 IF-to-Baseband ¿¿ ADCs | p. 90 |
4.3 Quadrature IF-to-Baseband ¿¿ ADCs | p. 93 |
4.4 Bandpass ¿¿ ADCs | p. 102 |
4.4.1 Continuous-Time Bandpass ¿¿ Modulators | p. 103 |
4.4.2 Continuous-Time Resonators | p. 106 |
4.5 Quadrature Bandpass ¿¿ ADCs | p. 109 |
4.6 Conclusions | p. 111 |
References | p. 113 |
5 IF-to-Baseband ¿¿ ADC for AM/FM/IBOC Receivers | p. 117 |
5.1 IF-to-Baseband Conversion System | p. 118 |
5.2 IF Mixer | p. 124 |
5.2.1 Mixer Linearity | p. 125 |
5.2.2 Mixer Dynamic Performance | p. 126 |
5.2.3 Isolated Mixer Topology | p. 132 |
5.2.4 Mixer Driver | p. 136 |
5.3 First Integrator | p. 138 |
5.3.1 Design of the 1st OTA To Be Used as a CT Integrator | p. 140 |
5.3.2 Design of the 1st OTA To Be Used as a SC Integrator | p. 143 |
5.3.3 1st OTA Transistor Level Design | p. 149 |
5.4 High-Order Integrators and Resonators | p. 152 |
5.5 Feedforward Coefficients and Quantizer | p. 157 |
5.6 SC Feedback DAC | p. 159 |
5.7 Experimental Results | p. 163 |
5.7.1 First Prototype | p. 164 |
5.7.2 Second Prototype | p. 171 |
References | p. 176 |
6 Conclusion | p. 179 |
6.1 Benchmarking | p. 179 |
6.2 Economic Feasibility | p. 181 |
References | p. 183 |
A Harmonic Distortion in CT Integrators Using Moscaps | p. 187 |
A.1 Introduction | p. 187 |
A.2 Harmonic Distortion in Differential Gm-C Integrators | p. 189 |
A.3 Harmonic Distortion in Differential Feedback Integrators | p. 192 |
References | p. 195 |
B Noise Analysis of CT ¿¿ Modulators with SC Feedback DAC | p. 197 |
B.1 Introduction | p. 197 |
B.2 Noise Voltage PSD Across a Switched Capacitor | p. 199 |
B.3 Input-Referred Thermal Noise Due to the SC Feedback DAC MOS Switches | p. 201 |
B3.1 "Direct Noise" Components | p. 201 |
B3.2 "Sampled-and-Held" Components | p. 203 |
B3.3 Input-Referred Noise | p. 204 |
B.4 Input-Referred Thermal Noise Due to the SC Feedback DAC Reference Voltage | p. 205 |
B.5 Input-Referred Thermal Noise Due to the OpAmp | p. 206 |
B.6 Conclusion | p. 208 |
References | p. 208 |
List of Acronyms | p. 209 |
List of Symbols | p. 211 |
Index | p. 213 |
About the Authors | p. 217 |