Novel hybrid type Automatic Amplitude Control loop VCO

This paper presents a Voltage Control Oscillator (VCO) with Automatic Amplitude Control (AAC) loop. The proposed AAC VCO employs a hybrid type AAC loop and targets the Industrial, Scientific and Medical (ISM) band applications. Detail transient analysis of this AAC VCO is derived. Based on this anal...

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Bibliographic Details
Published in2011 International Conference on Electronics, Communications and Control pp. 356 - 359
Main Authors Yuxiang Zhang, Chirn Chye Boon, Yannan Miao, Do, Mann Ann, Kiat Seng Yeo
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2011
Subjects
Charge pumps
design steps
Equations
hybrid type automatic amplitude control loop
Mathematical model
Partial discharges
Phase noise
Transient analysis
VCO
Voltage-controlled oscillators
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ISBN1457703203
9781457703201
DOI10.1109/ICECC.2011.6066652

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Summary:This paper presents a Voltage Control Oscillator (VCO) with Automatic Amplitude Control (AAC) loop. The proposed AAC VCO employs a hybrid type AAC loop and targets the Industrial, Scientific and Medical (ISM) band applications. Detail transient analysis of this AAC VCO is derived. Based on this analysis, design steps applicable for such type of AAC loop is obtained. Measurement result shows the peak amplitude variation over the operation range of 2.65 GHz to 3 GHz is less than 9mV (without the AAC loop, amplitude variation can be as large as 40mV, or 22.2%). Phase noise achieves -123.3dBc/Hz at 1 MHz offset frequency. Power consumption of the proposed AAC VCO is 10.8 mW while the power consumed by the loop is less than 1mW.
ISBN:1457703203
9781457703201
DOI:10.1109/ICECC.2011.6066652