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• 下载
  ADSL Line Driver/Receiver Design Guide, Part 1 &mdash LT Journal
  PDF, 190 Kb, 档案已发布: Feb 1, 2000
  从文件中提取

  DESIGN IDEAS ADSL Line Driver/Receiver
  Design Guide, Part 1 by Tim Regan Introduction
  Consumer desire for faster Internet
  access is driving the demand for very
  high data rate modems. A digital subscriber line (DSL) implementation
  speeds data to and from remote servers with data rates of 512Kbps to
  8Mbps, much faster than current
  56Kbps modem alternatives. This
  speed of data communication is providing the Internet with the capability
  to transfer information in new formats such as full-motion video, while greatly improving the timeliness of
  conventional information access.
  One very important feature of DSL
  technology is that the connection is
  handled through a normal telephone
  line; therefore, no special high speed
  cables or fiber optic links are required
  and every home and office is most
  likely DSL ready. Another feature is
  that the data interface can operate
  simultaneously with normal voice
  communication over the same tele-phone line. This allows the modem to
  be connected at all times and not
  interfere with the use of the same line …

• 下载
  ADSL Line Driver Design Guide, Part 2 &mdash LT Journal
  PDF, 239 Kb, 档案已发布: May 1, 2000
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  DESIGN IDEAS ADSL Line Driver Design Guide, Part 2
  by Tim Regan
  Part one of this article appeared in
  Linear Technology X:1 (February 2000)
  and is also available on the
  LinearвђЈ T echnology web site at
  www.lineartech.com/ezone/dsl.html.
  It discusses the different DSL standards, characteristics of the DSL
  signals, the design of differential drivers for DSL and the requirements for
  amplifiers used in this application. Design Calculations, Volts,
  Amps and Power Dissipation
  It is very important to consider the
  power requirements of the line driver
  in DSL applications. Although a nominal power level of 100mWRMS or less
  into a 100Ω load does not seem to be
  a lot of power, the driver must handle
  large peak signals and therefore
  requires a larger than nominal power
  supply voltage. This increases both
  the power dissipation in the driver
  package and the peak current capability needed from the power supply.
  This issue becomes most critical in
  central office designs, where many …

• 下载
  Comparator Circuit Provides Automatic Shutdown of the LT1795 High Speed ADSL Power Amplifier &mdash LT Journal
  PDF, 154 Kb, 档案已发布: Sep 1, 1999
  从文件中提取

  DESIGN IDEAS Comparator Circuit Provides Automatic
  Shutdown of the LT1795 High Speed
  ADSL Power Amplifier
  by Tim Regan
  Introduction
  Data transmission standards such
  as HDSL2, ADSL (both Full Rate and
  G.Lite) and VDSL (collectively known
  as xDSL) require the combined speed,
  output power and dynamic range
  capabilities of the LT1795 to drive the
  telephone line. In a typical data communications installation, in both the
  telephone central office and office
  building sites, hundreds of telephonewire pairs are brought together into a
  line multiplexer. These multiplexers
  compact the individual line driver and
  receiver circuits to save space. Eight
  lines per PC card are often implemented. This tight partitioning raises
  the challenges of both power and heat
  management in each installation.
  A simple comparator circuit can be
  used to monitor the activity of an
  individual phone line and completely …

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• Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > High Speed Amplifiers (GBW > 50MHz) | High Output Current Amplifiers (>100mA) | Current Feedback Amplifiers | High Voltage Amplifiers (>12V) | Low Noise Amplifiers (

其他名称:

LT1795ISWPBF, LT1795ISW PBF