Title :
Digital frequency detector based on multiphase ring oscillator
Author :
Cha, Choong-Yul ; Lee, Minjae ; Lee, Jaesup ; Kim, Taewook
Abstract :
A new high resolution digital frequency detector architecture based on multiphase ring oscillator is proposed, and it uses the time resolution of fast-operating deep sub-micron MOS transistor. The proposed DFD is implemented with 65 nm CMOS technology. The measured frequency resolution is amount to 75 dBc with 10.2 MHz input signal. Fabricated digital frequency detector draws about 4 mA in 1.2 V supply voltage.
Keywords :
CMOS integrated circuits; detector circuits; integrated circuit design; oscillators; CMOS technology; MOS transistors; digital frequency detector; frequency 10.2 MHz; multiphase ring oscillator; size 65 nm; voltage 1.2 V; Counting circuits; Delay; Design for disassembly; Frequency conversion; Latches; MOSFETs; Phase detection; Phase frequency detector; Ring oscillators; Signal resolution;
Conference_Titel :
VLSI Circuits, 2008 IEEE Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-1804-6
Electronic_ISBN :
978-1-4244-1805-3
DOI :
10.1109/VLSIC.2008.4585961
