CONSTITUTION:At an oscillator to execute temperature compensation by impressing a temperature compensating voltage Vt to a voltage capacity converting element 14 which controls the oscillation frequency, a bias circuit to execute the fine control of the oscillation frequency is formed by a high input ...
voltage generation circuit ( 23 ) generates a cubic term voltage as a control voltage based on an output voltage of the temperature detection circuit ( 13 ), and a frequency adjustment circuit ( 45 ) changes an oscillation frequency of the oscillation circuit ( 47 ) by the control voltage. ...
This design yields a temperature-compensated frequency from the internal VCO. The approach eliminates the traditional comparator from the oscillation loop; this... W Pang,RC Ruby,R Parker,... 被引量: 0发表: 2007年 A 140µA 34ppm/°C 30MHz Clock Oscillator in 28nm CMOS Bulk Process tempe...
CMOS integrated circuits compensation oscillators oscillation frequency reduced temperature coefficient square-wave relaxation oscillator temperature stability temperature-compensated CMOS relaxation oscillator time domain simulations CMOS integrated circuits 会议名称: International Conference on Applied Electronics 会议...
A temperature-compensated crystal oscillator (TCXO) combines an oscillating crystal, temperature sensor, and digital logic in a single package. Its output frequency error is very low over the full operating temperature range. Simply connect the output of the TCXO to the crystal input or the clock...
5355098Phase-locked loop with memory storing control data controlling the oscillation frequency1994-10-11Iwasaki331/14 5216389Temperature compensation of a crystal reference using direct digital synthesis1993-06-01Carralero et al.331/18 5126699Digitally compensated modulation system for frequency synthesizers19...
摘要: PROBLEM TO BE SOLVED: To provide a temperature-compensated oscillation circuit for effectively performing temperature compensation while adjusting a frequency to a prescribed value.收藏 引用 批量引用 报错 分享 文库来源 其他来源 求助全文 TEMPERATURE-COMPENSATED OSCILLATION CIRCUIT 优质文献 ...
Its frequency of oscillation; is used as a highly accurate thermometer in order to control a correction signal applied to a variable phase shifter in the clock oscillator loop. 展开 关键词: Crystal Oscillators Surface Acoustic Wave Devices Thermal Stability Digital Transducers Frequencies Logic Circuits...
A temperature-compensated high-frequency CMOS integrated relaxation oscillator with low frequency variations is presented. A current-controlled oscillator topology is employed with a resistive source-degenerated transconductor and a current comparator to achieve high oscillation frequency and low power ...
as shown in solid lines f0. When the frequency temperature characteristic of the crystal vibrator is shown in broken lines f0', the frequency of an output signal at an output terminal 11 of the crystal oscillation circuit is shown in broken lines f0'', which shows the compensated frequency ...