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Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Design Notes

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  A-to-D Converter Does Frequency Translation &mdash DN259
  PDF, 93 Кб, Файл опубликован: 1 июн 2001
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  A-to-D Converter Does Frequency Translation – Design Note 259
  Derek Redmayne
  The need to characterize frequency sources, both in the
  laboratory and in the п¬Ѓeld, is increasingly important. The
  circuit in Figure 1 offers some interesting attributes in
  a compact and relatively inexpensive scheme. It uses
  an LTC В®1420 ADC to undersample a higher frequency,
  driving an LTC1668 DAC, followed by a п¬Ѓlter to perform a
  down conversion. The output of the п¬Ѓlter is subsequently
  resampled to produce a manageable sample rate for a
  single-chip microcontroller. In addition to characterizing
  the carrier in an IF strip or the output of a local oscillator,
  this technique is also useful for characterizing ADCs,
  DACs, clock sources, signal sources or the effects of
  logic devices or phase-locked loops on phase noise.
  Frequency conversion or translation is usually performed by a diode mixer or a Gilbert cell mixer. Down
  conversion is most often encountered in radio receivers;
  up conversion is more commonly used in transmitters. The common superheterodyne receiver usually
  involves one conversion to produce a п¬Ѓxed intermediate
  frequency (IF). Spectrum analyzers, cellular base stations, cable modems, microwave and satellite receivers,
  radar and optical communications systems all include
  frequency conversion blocks. Down Conversion with an ADC
  It may not be commonly known that down conversion …

Статьи

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  A Clean 12-Bit, 10Msps ADC &mdash LT Journal
  PDF, 173 Кб, Файл опубликован: 1 июн 1999
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  LINEAR TECHNOLOGY
  JUNE 1999 IN THIS ISSUE…
  COVER ARTICLE
  A Clean 12-Bit, 10Msps ADC
  . 1 VOLUME IX NUMBER 2 A Clean 12-Bit, 10Msps ADC
  by Richard Reay and Dave Thomas Richard Reay and Dave Thomas Issue Highlights . 2
  LTCВ® in the News . 2
  DESIGN FEATURES
  Micropower LDO Has the
  Lowest Noise and Quiescent
  Current in SOT-23 . 5
  Todd Owen The LTВ®1576: 200kHz, 1.5A
  Monolithic Buck Converter
  . 8
  Lenny Hsiu The LT1684 Solves the Global
  Ringing Problem . 11
  Dale Eagar LT1785 and LT1791: 60V,
  Fault-Tolerant RS485/RS422
  Transceivers . 13 Introduction LTC1420 Features As data conversion rates increase, it
  becomes difficult to find ADCs that
  have both good dynamic performance
  and clean linearity. An exception is
  the LTC1420, a 12-bit ADC that has …

Модельный ряд

Классификация производителя

• Data Conversion > Analog-to-Digital Converters (ADC) > High Speed ADCs (Fs >=10Msps)

Варианты написания:

LTC1420CGNPBF, LTC1420CGN PBF