A 16 MHz CMOS RC Frequency Reference With ±90 ppm Inaccuracy From −45 . . . RC frequency reference implemented in a standard 180-nm CMOS process It consists of a frequency-locked loop (FLL) in which the output frequency of a digitally controlled oscillator (DCO) is locked to the frequency-phase characteristic of a Wien bridge RC filter
RC Frequency References Based on Dual RC FLLs - Springer Abstract This chapter introduces a dual RC frequency reference It consists of a digital frequency-locked loop (FLL) in which the frequency of a digitally controlled oscillator is locked to a temperature-independent phase shift derived from two RC networks
A Compact 10-MHz RC Frequency Reference With a Versatile Temperature . . . Abstract—This article presents the design and implementation of a compact CMOS RC frequency reference It consists of frequency-locked loop (FLL) that locks the period of a voltage-controlled oscillator (VCO) to the time an RC network takes to charge to a reference voltage
RC Frequency References Based on Dual RC FLLs - Springer This chapter introduces a dual RC frequency reference It consists of a digital frequency-locked loop (FLL) in which the frequency of a digitally controlled oscillator is locked to a temperature-independent phase shift derived from two RC networks
RC Frequency References Based on Dual RC FLLs - Yonsei University This chapter introduces a dual RC frequency reference It consists of a digital frequency-locked loop (FLL) in which the frequency of a digitally controlled oscillator is locked to a temperature-independent phase shift derived from two RC networks