Wei-Hao Chiu

Learn More
This paper presents a fast-locking technique for phase-locked loops (PLLs). In the proposed technique, the polarity and magnitude of the phase error at the phase-frequency detector (PFD) input is continuously monitored during the locking process. The detected phase error is then coarsely compensated by dynamically changing the divide ratio of the frequency(More)
A wideband active-RC low-pass filter realized for high data rate wireless receivers is reported in this paper. This filter adopts the 5<sup>th</sup>-order elliptic topology and achieves a bandwidth of 120 MHz and a stopband attenuation of more than 45 dB. The wide-bandwidth operational amplifiers employed in the filter adopt the feedforward compensation(More)
  • 1