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Title:
VARIABLE FREQUENCY DIVIDER CIRCUIT
Document Type and Number:
Japanese Patent JP2002217710
Kind Code:
A
Abstract:

To provide an F/F+1 prescaler that is stably in operation by a low consumed current at a low power supply voltage.

The size of MOS transistors(TRs) (50, 51) for frequency division ratio switching is selected greater than that of other differential stage MOS TRs (28-31) and differential signals (FBB, ZFBB, FBA, ZFAB) are delivered to a latch circuit at a 1st stage as feedback signals.


Inventors:
WAKATA HIDEYUKI
KATO NAOYUKI
SATO HISAYASU
KOMURASAKI HIROSHI
Application Number:
JP2001011147A
Publication Date:
August 02, 2002
Filing Date:
January 19, 2001
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H03K23/64; H03K21/00; H03K23/66; (IPC1-7): H03K23/64
Domestic Patent References:
JPH02132918A1990-05-22
JPH05347554A1993-12-27
JPH0590953A1993-04-09
JPH10150361A1998-06-02
JPH10247850A1998-09-14
JPH1198009A1999-04-09
JPH118550A1999-01-12
JPS6162232A1986-03-31
JPS5994444U1984-06-27
JPH07221633A1995-08-18
Attorney, Agent or Firm:
Hisami Fukami (4 outside)



 
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