Datasheet Linear Technology LTC1569IS8-7#TRPBF

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Design Notes

• Download
  Free FilterCAD 3.0 Software Designs Filters Quickly and Easily &mdash DN245
  PDF, 324 Kb, File published: Dec 1, 2001
  Extract from the document

  Free FilterCAD 3.0 Software Designs Filters Quickly and Easily
  Design Note 245
  Philip Karantzalis
  Analog filters must satisfy multiple design specifications (i.e., gain, phase and time response) and implementation constraints (i.e., component tolerance, IC
  package and power supply voltage and current limitations). The design of a complex filter network requires
  substantial mathematical work and experience in an
  available technology (i.e., integrated circuits or op
  amps and discrete components). Linear Technology’s
  FilterCADВ® 3.0 (FCAD) automates and simplifies the
  process of analog filter design and implementation.
  FCAD is a Microsoft Windows-based program. FCAD
  reduces the lengthy process of selecting and designing
  an optimal filter to a sequence of mouse clicks. Based
  on a user’s input of filter parameters, FCAD designs a
  filter response and then implements that response as a
  practical circuit using a Linear Technology active RC or
  switched-capacitor filter IC. FCAD can realize lowpass,
  highpass, bandpass and notch filters with a variety of
  responses, including Butterworth, Bessel, Chebyshev,
  elliptic and minimum Q elliptic. In addition, with FCAD,
  a custom filter can be designed to meet an arbitrary
  set of specifications. FCAD features two distinct paths,
  Quick Design/Implement for quick answers to filter …

Articles

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  LTC1569-X, 10th Order, Linear-Phase Lowpass Filter Family is Tunable with a Single External Resistor &mdash LT Journal
  PDF, 127 Kb, File published: Jun 1, 1999
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  DESIGN FEATURES LTC1569-X, 10th Order, Linear-Phase
  Lowpass Filter Family is Tunable with
  by Michael Kultgen
  a Single External Resistor
  The new LTC1569-6/LTC1569-7
  are the first monolithic filters in the
  industry to provide accurate control
  of the cutoff frequency without the
  need for an external clock. A single
  external resistor programs internal
  precision circuitry, enabling the user
  to vary the filter cutoff frequency over
  eight octaves with a typical accuracy
  of В±3% or better. Figure 1 shows a
  simplified block diagram of the
  LTC1569-6/ LTC1569-7.
  The internal filter circuitry uses
  sampled-data techniques with a ratio
  of sampling frequency to filter cutoff
  frequency of 64:1 and 128:1 for the
  LTC1569-7 and LTC1569-6, respectively. This technology allows the
  realization of complex and accurate
  filter functions in a relatively small …

Model Line

Manufacturer's Classification

• Signal Conditioning > Filters > Lowpass Filters

Other Names:

LTC1569IS8-7TRPBF, LTC1569IS8-7 TRPBF, LTC1569IS87#TRPBF, LTC1569IS8 7#TRPBF