公开(公告)号：CA2310416A1

公开(公告)日：1999-05-27

申请号：CA2310416

申请日：1998-11-10

Applicant: ERICSSON TELEFON AB L M

Inventor： BJORK CHRISTIAN ,  MARHOLEV BOJKO ,  LANTZ MARTIN ,  GARDENFORS TORBJORN

IPC: H03B1/00 ,  H03B5/12

Abstract: A monolithic high frequency voltage controlled oscillator trimming circuit includes a plurality of capacitance loops (140) selectively connected between a first (120) and second (130) differential input of a voltage oscillator active network (110). A plurality of diodes (159, 160), connected in series with the respective plurality of capacitance loops (140), selectively connect respective capacitance loops (140) between the first (120) and second (130) differential input when forward biased. In a similar fashion, the plurality of diodes (159, 160) selectively disconnect the respective capacitance loops (140) from the first (120) and second (130) differential input when reverse biased. A controller (180) applies a forward biasing voltage to the diode (159, 160) of the selected capacitance loop (140) to connect the capacitance loop (140) to the active network (110) of the voltage controlled oscillator and applies a reverse biasing voltage to the diode (159, 160) of the selected capacitance loop (140) to disconnect the capacitance loop (140) from the active network (110). The diodes (159, 160) used in the capacitance loops (140) form a switch operable at high frequencies and are formed from a bipolar complementary metal oxide semiconductor electro-static discharge protection diode.

公开(公告)号：DE60026967D1

公开(公告)日：2006-05-18

申请号：DE60026967

申请日：2000-01-20

Applicant: ERICSSON TELEFON AB L M

Inventor： HAARTSEN JACOBUS ,  MARHOLEV BOJKO

IPC: G04G3/00 ,  H03L7/02 ,  H03J7/06 ,  H03L7/14 ,  H03L7/181

公开(公告)号：HK1044423A1

公开(公告)日：2002-10-18

申请号：HK02106004

申请日：2002-08-16

Applicant: ERICSSON TELEFON AB L M

Inventor： HAARTSEN JACOBUS ,  MARHOLEV BOJKO

IPC: G04G3/00 ,  H03J7/06 ,  H03L7/02 ,  H03L7/14 ,  H03L7/181 ,  H03L

公开(公告)号：PL349779A1

公开(公告)日：2002-09-09

申请号：PL34977900

申请日：2000-01-20

Applicant: ERICSSON TELEFON AB L M

Inventor： HAARTSEN JACOBUS ,  MARHOLEV BOJKO

IPC: G04G3/00 ,  H03J7/06 ,  H03L7/02 ,  H03L7/14 ,  H03L7/181

公开(公告)号：AU740649B2

公开(公告)日：2001-11-08

申请号：AU1447899

申请日：1998-11-10

Applicant: ERICSSON TELEFON AB L M

Inventor： BJORK CHRISTIAN ,  LANTZ MARTIN ,  GARDENFORS TORBJORN ,  MARHOLEV BOJKO

IPC: H03B1/00 ,  H03B5/12

Abstract: A monolithic high frequency voltage controlled oscillator trimming circuit includes a plurality of capacitance loops selectively connected between a first and second differential input of a voltage oscillator active network. A plurality of diodes, connected in series with the respective plurality of capacitance loops, selectively connect respective capacitance loops between the first and second differential input when forward biased. In a similar fashion, the plurality of diodes selectively disconnect the respective capacitance loops from the first and second differential input when reverse biased. A controller applies a forward biasing voltage to the diode of the selected capacitance loop to connect the capacitance loop to the active network of the voltage controlled oscillator and applies a reverse biasing voltage to the diode of the selected capacitance loop to disconnect the capacitance loop from the active network. The diodes used in the capacitance loops form a switch operable at high frequencies and are formed from a bipolar complementary metal oxide semiconductor electro-static discharge protection diode.

公开(公告)号：HK1033869A1

公开(公告)日：2001-09-28

申请号：HK01104338

申请日：2001-06-21

Applicant: ERICSSON TELEFON AB L M

Inventor： BJORK CHRISTIAN ,  LANTZ MARTIN ,  GARDENFORS TORBJORN ,  MARHOLEV BOJKO

IPC: H03B5/12 ,  H03B1/00 ,  H03B

Abstract: A monolithic high frequency voltage controlled oscillator trimming circuit includes a plurality of capacitance loops selectively connected between a first and second differential input of a voltage oscillator active network. A plurality of diodes, connected in series with the respective plurality of capacitance loops, selectively connect respective capacitance loops between the first and second differential input when forward biased. In a similar fashion, the plurality of diodes selectively disconnect the respective capacitance loops from the first and second differential input when reverse biased. A controller applies a forward biasing voltage to the diode of the selected capacitance loop to connect the capacitance loop to the active network of the voltage controlled oscillator and applies a reverse biasing voltage to the diode of the selected capacitance loop to disconnect the capacitance loop from the active network. The diodes used in the capacitance loops form a switch operable at high frequencies and are formed from a bipolar complementary metal oxide semiconductor electro-static discharge protection diode.

公开(公告)号：NO20002264D0

公开(公告)日：2000-04-28

申请号：NO20002264

申请日：2000-04-28

Applicant: ERICSSON TELEFON AB L M

Inventor： BJOERK CHRISTIAN ,  LANTZ MARTIN ,  GORDENFORS TORBJOERN ,  MARHOLEV BOJKO

IPC: H03B5/12 ,  H03B1/00 ,  H03B

Abstract: A monolithic high frequency voltage controlled oscillator trimming circuit includes a plurality of capacitance loops selectively connected between a first and second differential input of a voltage oscillator active network. A plurality of diodes, connected in series with the respective plurality of capacitance loops, selectively connect respective capacitance loops between the first and second differential input when forward biased. In a similar fashion, the plurality of diodes selectively disconnect the respective capacitance loops from the first and second differential input when reverse biased. A controller applies a forward biasing voltage to the diode of the selected capacitance loop to connect the capacitance loop to the active network of the voltage controlled oscillator and applies a reverse biasing voltage to the diode of the selected capacitance loop to disconnect the capacitance loop from the active network. The diodes used in the capacitance loops form a switch operable at high frequencies and are formed from a bipolar complementary metal oxide semiconductor electro-static discharge protection diode.

公开(公告)号：AU1447899A

公开(公告)日：1999-06-07

申请号：AU1447899

申请日：1998-11-10

Applicant: ERICSSON TELEFON AB L M

Inventor： BJORK CHRISTIAN ,  LANTZ MARTIN ,  GARDENFORS TORBJORN ,  MARHOLEV BOJKO

IPC: H03B1/00 ,  H03B5/12

Abstract: A monolithic high frequency voltage controlled oscillator trimming circuit includes a plurality of capacitance loops selectively connected between a first and second differential input of a voltage oscillator active network. A plurality of diodes, connected in series with the respective plurality of capacitance loops, selectively connect respective capacitance loops between the first and second differential input when forward biased. In a similar fashion, the plurality of diodes selectively disconnect the respective capacitance loops from the first and second differential input when reverse biased. A controller applies a forward biasing voltage to the diode of the selected capacitance loop to connect the capacitance loop to the active network of the voltage controlled oscillator and applies a reverse biasing voltage to the diode of the selected capacitance loop to disconnect the capacitance loop from the active network. The diodes used in the capacitance loops form a switch operable at high frequencies and are formed from a bipolar complementary metal oxide semiconductor electro-static discharge protection diode.