GB201221020D0 - Power efficient high swing long reach transmitter architecture - Google Patents

Power efficient high swing long reach transmitter architecture

Info

Publication number
GB201221020D0
GB201221020D0 GB201221020A GB201221020A GB201221020D0 GB 201221020 D0 GB201221020 D0 GB 201221020D0 GB 201221020 A GB201221020 A GB 201221020A GB 201221020 A GB201221020 A GB 201221020A GB 201221020 D0 GB201221020 D0 GB 201221020D0
Authority
GB
United Kingdom
Prior art keywords
lvds
transmitter
cml
output node
type
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.)
Withdrawn
Application number
GB201221020A
Other versions
GB2497188A (en
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.)
Texas Instruments Ltd
Original Assignee
Texas Instruments Ltd
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 Texas Instruments Ltd filed Critical Texas Instruments Ltd
Publication of GB201221020D0 publication Critical patent/GB201221020D0/en
Publication of GB2497188A publication Critical patent/GB2497188A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0264—Arrangements for coupling to transmission lines
    • H04L25/028—Arrangements specific to the transmitter end
    • H04L25/0282—Provision for current-mode coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0264—Arrangements for coupling to transmission lines
    • H04L25/0272—Arrangements for coupling to multiple lines, e.g. for differential transmission

Abstract

A power efficient transmitter with a high voltage swing capability for sending data along long backplanes is disclosed. The transmitter circuit includes i) a current switching, current mode logic (CML) type driver (transitors M5-M8) connected to the transmitter output terminals TXP & TXN, and ii) a low-voltage differential signal (LVDS) type driver (transistors M1-M4) having an output node connected to the transmitter output TXP & TXN via a terminating load (resistors Rt). In a standard configuration, the LVDS output node would determine the common mode or receiver bias voltage. In the present invention, the LVDS type stage is switched by the driver input signal (INP, INN) in synchronism with the CML type stage to establish at the LVDS output node a voltage that is substantially the same as that which the ac driven leg of a CML type driver would take up, thereby reducing current through, and power loss in, the terminating resistors Rt.
GB201221020A 2011-11-29 2012-11-22 Power efficient high speed backplane driver circuit with high voltage swing Withdrawn GB2497188A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB201120505A GB201120505D0 (en) 2011-11-29 2011-11-29 Power efficient high swing long reach transmitter architecture
GB201201171A GB2497145A (en) 2011-11-29 2012-01-25 Power efficient transmitter with a high voltage swing for sending high speed data along long backplanes

Publications (2)

Publication Number Publication Date
GB201221020D0 true GB201221020D0 (en) 2013-01-09
GB2497188A GB2497188A (en) 2013-06-05

Family

ID=45508870

Family Applications (3)

Application Number Title Priority Date Filing Date
GB201120505A Ceased GB201120505D0 (en) 2011-11-29 2011-11-29 Power efficient high swing long reach transmitter architecture
GB201201171A Withdrawn GB2497145A (en) 2011-11-29 2012-01-25 Power efficient transmitter with a high voltage swing for sending high speed data along long backplanes
GB201221020A Withdrawn GB2497188A (en) 2011-11-29 2012-11-22 Power efficient high speed backplane driver circuit with high voltage swing

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB201120505A Ceased GB201120505D0 (en) 2011-11-29 2011-11-29 Power efficient high swing long reach transmitter architecture
GB201201171A Withdrawn GB2497145A (en) 2011-11-29 2012-01-25 Power efficient transmitter with a high voltage swing for sending high speed data along long backplanes

Country Status (1)

Country Link
GB (3) GB201120505D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9871539B2 (en) 2013-07-16 2018-01-16 Mediatek Inc. Driver circuit for signal transmission and control method of driver circuit
CN104579378B (en) * 2015-01-15 2017-04-19 中国科学技术大学先进技术研究院 Low-voltage differential transmitter for achieving pre-emphasis circuit of capacitor
EP3174209A1 (en) * 2015-11-30 2017-05-31 MediaTek Inc. Driver circuit for signal transmission

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7061273B2 (en) * 2003-06-06 2006-06-13 Rambus Inc. Method and apparatus for multi-mode driver
US6774700B1 (en) * 2003-08-29 2004-08-10 Agilent Technologies, Inc. Current-mode logic differential signal generation circuit employing squelch
US6842037B1 (en) * 2003-09-04 2005-01-11 Lattice Semiconductor Corporation Shared transmission line communication system and method
US7304494B2 (en) * 2005-04-04 2007-12-04 Altera Corporation Methods and apparatus to DC couple LVDS driver to CML levels
US7315186B2 (en) * 2005-06-06 2008-01-01 Intel Corporation Voltage mode driver with current mode equalization
US20080024172A1 (en) * 2006-07-26 2008-01-31 Parade Technologies, Ltd. Actively Compensated Buffering for High Speed Current Mode Logic Data Path
KR101000289B1 (en) * 2008-12-29 2010-12-13 주식회사 실리콘웍스 Transmitter of the differential voltage driving mode and Transmitter, receiver and interface system capable of selective adaption of the differential current driving mode and the differential voltage driving mode

Also Published As

Publication number Publication date
GB2497188A (en) 2013-06-05
GB2497145A (en) 2013-06-05
GB201201171D0 (en) 2012-03-07
GB201120505D0 (en) 2012-01-11

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)