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Application Notes

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  Interfacing RF I/Q Modulators with Popular D/A Converters &mdash AN109
  PDF, 151 Кб, Файл опубликован: 23 мар 2007
  Linear Technology’s High Frequency Product lineupincludes a variety of RF I/Q modulators. The purpose ofthis application note is to illustrate the circuits requiredto interface these modulators with several popular D/Aconverters. Such circuits typically are required to maximizethe voltage transfer from the DAC to the baseband inputsof the modulator, as well as provide some reconstruction filtering.
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  Application Note 109
  March 2007
  Interfacing RF I/Q Modulators with
  Popular D/A Converters
  Doug Stuetzle
  Introduction
  Linear Technology’s High Frequency Product lineup
  includes a variety of RF I/Q modulators. The purpose of
  this application note is to illustrate the circuits required
  to interface these modulators with several popular D/A
  converters. Such circuits typically are required to maximize
  the voltage transfer from the DAC to the baseband inputs
  of the modulator, as well as provide some reconstruction
  п¬Ѓltering. 0.52V. If the common mode DC voltage applied to the
  modulator’s baseband input terminals deviates from
  this value by more than about 75mV, the device may
  not meet the specifications listed in the data sheet,
  because source voltage affects the current consumed
  by the mixer core. The common mode voltage is approximately constant over temperature. High impedance, lower common mode DC voltage
  (LT5571, LT5572) The baseband (I,Q) interface for the modulators falls into
  one of three categories: The baseband input circuit of these modulators presents
  a very high differential impedance (about 90k). The
  I, Q inputs do not generate an internal DC voltage, but …

Модельный ряд

Классификация производителя

• Signal Conditioning > Amplifiers > Differential Amplifiers > Fully Differential Amplifiers
• Signal Conditioning > Filters > Wideband Active Filters

Варианты написания:

LT6600CS8-5TRPBF, LT6600CS8-5 TRPBF, LT6600CS85#TRPBF, LT6600CS8 5#TRPBF