Title:
非準静的位相ロックループ分周回路
Document Type and Number:
Japanese Patent JP2007522712
Kind Code:
A
Abstract:
A non-quasistatic MOS frequency divider circuit uses a phase lock loop configuration including an antenna coil to induce a differential input signal, an antenna resonating capacitor, a rectifier, a voltage controlled ring oscillator, a phase detector and a loop filter. All transistors used are organic MOS devices of PMOS, NMOS or both PMOS and NMOS varieties. The voltage-controlled oscillator includes a multiple delay stage ring oscillator. The phase detector includes transistors connected as sampling switches to sample the individual oscillator stage voltages into the loop filter. The sampling transistors have gates connected to the coil. The loop filter provides a substantially direct current to a loop amplifier and then to the voltage controlled oscillator delay control input. This configuration results in the voltage controlled oscillator frequency being synchronous to-and at a sub-multiple of the antenna signal frequency. The sampling transistor gates are all connected to the coil and thereby become part of the capacitance of the radio frequency parallel resonant network. The transistor gates are then efficiently switched at the rate of the radio frequency signal with no delay relative to the coil voltage. Operation of the phase detector organic transistors is based on non-quasistatic behavior of the transistor. Non-quasistatic operation results in phase detection at a frequency much higher than the quasistatic limit of transistor unity gain bandwidth.
Inventors:
Robert Earl
Dimler, claus
Dimler, claus
Application Number:
JP2006549566A
Publication Date:
August 09, 2007
Filing Date:
January 11, 2005
Export Citation:
Assignee:
ORGANICID, INC.
International Classes:
H03L7/099; H03K3/03; H03K3/354; H03K5/13; H03K21/00; H03K23/54; H03L7/091
Domestic Patent References:
| JPH09121156A | 1997-05-06 | |||
| JPH05152560A | 1993-06-18 | |||
| JP2001516110A | 2001-09-25 |
Foreign References:
| US5302954A | 1994-04-12 | |||
| WO2003038897A2 | 2003-05-08 |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai