Title:
PHASE CONTROL LOOP
Document Type and Number:
WIPO Patent Application WO2002095948
Kind Code:
A3
Abstract:
Disclosed is a phase control loop enabling a frequency measurement operational mode for precise detection of the loop gain of the control loop, in addition to a normal operation mode, whereby a frequency divider (2) is embodied as a frequency counter with an output for current counter value read-out. A control circuit is also provided for separation of the control loop during frequency measurement and for adjusting the maximum division ratio of the frequency meter (2). Once the precise loop gain is known, a PLL circuit can be provided for modulation purposes having a high bandwith and good noise properties.
Inventors:
HERZINGER STEFAN (DE)
NEURAUTER BURKHARD (AT)
MAERZINGER GUENTER (AT)
WEIGEL ROBERT (AT)
NEURAUTER BURKHARD (AT)
MAERZINGER GUENTER (AT)
WEIGEL ROBERT (AT)
Application Number:
PCT/DE2002/001845
Publication Date:
July 24, 2003
Filing Date:
May 22, 2002
Export Citation:
Assignee:
INFINEON TECHNOLOGIES AG (DE)
HERZINGER STEFAN (DE)
NEURAUTER BURKHARD (AT)
MAERZINGER GUENTER (AT)
WEIGEL ROBERT (AT)
HERZINGER STEFAN (DE)
NEURAUTER BURKHARD (AT)
MAERZINGER GUENTER (AT)
WEIGEL ROBERT (AT)
International Classes:
H03C3/09; H03L7/089; H03L7/18; (IPC1-7): H03L7/089; H03L7/18
Domestic Patent References:
| WO2001022103A1 | 2001-03-29 |
Foreign References:
| CA2220622A1 | 1999-05-03 |
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