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GB2495329B - Circuit coupling - Google Patents

Circuit coupling

Info

Publication number
GB2495329B
GB2495329B GB1117364.8A GB201117364A GB2495329B GB 2495329 B GB2495329 B GB 2495329B GB 201117364 A GB201117364 A GB 201117364A GB 2495329 B GB2495329 B GB 2495329B
Authority
GB
United Kingdom
Prior art keywords
lvds
baseband
slvs
buffer
converted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB1117364.8A
Other versions
GB201117364D0 (en
GB2495329A (en
Inventor
Arttu Aukusti Kettunen
Marko Johannes Vitala
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renesas Electronics Corp
Original Assignee
Renesas Mobile Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renesas Mobile Corp filed Critical Renesas Mobile Corp
Priority to GB1117364.8A priority Critical patent/GB2495329B/en
Publication of GB201117364D0 publication Critical patent/GB201117364D0/en
Publication of GB2495329A publication Critical patent/GB2495329A/en
Application granted granted Critical
Publication of GB2495329B publication Critical patent/GB2495329B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/0175—Coupling arrangements; Interface arrangements
    • H03K19/017509—Interface arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Transceivers (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)

Abstract

The LVDS signal output by a baseband IC 110 is converted to an SLVS signal, suitable for input to an RF IC 120, by use of a buffer 210 and a voltage divider 224,226. The buffer 210 enables existing baseband ICs with LVDS interfaces to be used without modification because adherence to the LVDS standard in the IC may be relaxed. The resistor 222 improves impedance matching and the capacitor 230 blocks wasteful DC current. The SLVS signal output by the RFIC may be converted to an LVDS signal, suitable for the baseband IC, by the use of amplifying buffers (figure 3). The interface is simpler and less costly than an arrangement comprising a custom-made ASIC.
GB1117364.8A 2011-10-07 2011-10-07 Circuit coupling Expired - Fee Related GB2495329B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1117364.8A GB2495329B (en) 2011-10-07 2011-10-07 Circuit coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1117364.8A GB2495329B (en) 2011-10-07 2011-10-07 Circuit coupling

Publications (3)

Publication Number Publication Date
GB201117364D0 GB201117364D0 (en) 2011-11-23
GB2495329A GB2495329A (en) 2013-04-10
GB2495329B true GB2495329B (en) 2013-11-13

Family

ID=45091723

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1117364.8A Expired - Fee Related GB2495329B (en) 2011-10-07 2011-10-07 Circuit coupling

Country Status (1)

Country Link
GB (1) GB2495329B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755693A (en) * 1971-08-30 1973-08-28 Rca Corp Coupling circuit
US5412262A (en) * 1989-08-23 1995-05-02 Hitachi, Ltd. Semiconductor integrated circuit device having plurality of supply potential lines connected thereto, and system employing the same
US5541532A (en) * 1995-08-17 1996-07-30 Analog Devices, Inc. All MOS single-ended to differential level converter
US5589790A (en) * 1995-06-30 1996-12-31 Intel Corporation Input structure for receiving high voltage signals on a low voltage integrated circuit device
US5684414A (en) * 1996-02-02 1997-11-04 U.S. Philips Corporation Voltage level interface circuit with separate reference signal input and folded cascode structure
US6253332B1 (en) * 1998-12-02 2001-06-26 Sun Microsystems Apparatus for generating shifted down clock signals
US20080018375A1 (en) * 2006-07-21 2008-01-24 Asustek Computer Inc. Level shifter
US20080218292A1 (en) * 2007-03-08 2008-09-11 Dong-Uk Park Low voltage data transmitting circuit and associated methods
US7504859B2 (en) * 2006-08-18 2009-03-17 Nec Electronics Corporation Level converter and semiconductor device
US7649381B2 (en) * 2006-12-28 2010-01-19 Hitachi, Ltd. Level conversion circuit

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755693A (en) * 1971-08-30 1973-08-28 Rca Corp Coupling circuit
US5412262A (en) * 1989-08-23 1995-05-02 Hitachi, Ltd. Semiconductor integrated circuit device having plurality of supply potential lines connected thereto, and system employing the same
US5589790A (en) * 1995-06-30 1996-12-31 Intel Corporation Input structure for receiving high voltage signals on a low voltage integrated circuit device
US5541532A (en) * 1995-08-17 1996-07-30 Analog Devices, Inc. All MOS single-ended to differential level converter
US5684414A (en) * 1996-02-02 1997-11-04 U.S. Philips Corporation Voltage level interface circuit with separate reference signal input and folded cascode structure
US6253332B1 (en) * 1998-12-02 2001-06-26 Sun Microsystems Apparatus for generating shifted down clock signals
US20080018375A1 (en) * 2006-07-21 2008-01-24 Asustek Computer Inc. Level shifter
US7504859B2 (en) * 2006-08-18 2009-03-17 Nec Electronics Corporation Level converter and semiconductor device
US7649381B2 (en) * 2006-12-28 2010-01-19 Hitachi, Ltd. Level conversion circuit
US20080218292A1 (en) * 2007-03-08 2008-09-11 Dong-Uk Park Low voltage data transmitting circuit and associated methods

Also Published As

Publication number Publication date
GB201117364D0 (en) 2011-11-23
GB2495329A (en) 2013-04-10

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20140102 AND 20140108

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20140109 AND 20140115

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20161007