A Reference Source Circuit Design for Voltage Controlled Oscillator Chips

被引：0
作者：
Tan, Chuanwu [1 ]
Gong, Jiangtao [1 ]
Fu, Zongchun [1 ]
机构：
[1] Hunan Railway Profess Technol Coll, Dept Commun & Signal, Zhuzhou 412001, Hunan, Peoples R China
来源：
SCIENTIFIC PROGRAMMING | 2022年 / 2022卷
关键词：
RF TRANSCEIVER;
D O I：
10.1155/2022/7838252
中图分类号：
TP31 [计算机软件];
学科分类号：
081202 ; 0835 ;
摘要：
The basic principle and typical structure of the bandgap voltage reference source are introduced in detail in this paper. The performance index of the bandgap voltage reference is analyzed. The core circuit of a bandgap voltage reference source with good temperature characteristics and a high power supply rejection ratio (PSRR) is designed, in which a two-stage di'erential operational amplifier with a buffer stage is used, a start-up circuit without a capacitor is used to reduce the start-up time, and a common beta multiplication self-bias circuit is used to attenuate the effects of the power supply voltage. It is shown from the final HSPICE simulation results that the reference voltage temperature coefficient is approximately 7 ppm/degrees C within the range of -20 to 80 degrees C in temperature, and the average PSRR can reach more than -56 dB within the range of 1 Hz to 10 kHz in frequency.
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页数：10
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