Duty Cycle Correction Using Negative Feedback Loop

• Autorzy: Patil, S. , Rudraswamy, S. B.
• Języki publikacji: EN

Abstrakty

EN

An architecture has been proposed to obtain a duty cycle of nearly 50% for single-ended signals. The main idea is based on the fact that the average DC value of a signal is proportional to its Duty Cycle. So, if we assure that the signal and its inverted counterpart have equal average DC value, that particular signal will have a 50% duty cycle. A feedback circuit is used to compare the average DC values and correct the duty cycle of the signal. The duty correction circuit was implemented in 130nm technology with a power supply of 1.2 V. It was found by simulation that the circuit gives nearly 50% duty cycle at the output for a 500MHz signal when the input duty cycle is varied from 25% to 75%.

Słowa kluczowe

PL

sprzężenie zwrotne; korekta cyklu pracy

EN

duty cycle correction; analog solution feedback

• Czasopismo: Electronics and Telecommunications Quarterly
• Rocznik: 2009
• Tom: Vol. 55, No 4
• Strony: 577-583
• Opis fizyczny: Bibliogr. 2 poz., wykr.

Twórcy

autor

Patil, S.

autor

Rudraswamy, S. B.

• Kawasaki Microelectronics,

Bibliografia

• 1. Keun-Soo Song, Cheul-Hee Koo, Nak-Kyu Park, Kwan-Weon Kim,Young-Jung Choi, Jin-Hong Ahn, Byong-Tae Chung: A Single- Loop DLL Using an OR-AND Duty-Cycle Correction Technique, Proceedings, IEEE Asian Solid-State Circuits Conference, Nov 2008.
• 2. Kazuyuki Nakamura, Muneo Fukaishi, Yoshinori Hirota, Youetsu Nakazawa and Michio Yosuyanagi: A CMOS 50% Duty Cycle Repeater Using Complementary Phase Blending, Symposium on VLSI Circuits Digest of Technical Papers. 2000.