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APN1006 - A Colpitts VCO

Description

of the parameters employed.

Figure 4.

Skyworks Solutions, Inc.

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200316 Rev.

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Features

  • ). Since the epitaxial layer for this kind of hyperabrupt varactor has relatively high resistivity, the series resistance is strongly dependent on the reverse voltage applied to varactor junction. The value of series resistance (RS).

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Datasheet Details

Part number APN1006
Manufacturer Skyworks
File Size 313.91 KB
Description A Colpitts VCO
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www.DataSheet.co.kr APPLICATION NOTE APN1006: A Colpitts VCO for Wideband (0.95–2.15 GHz) Set-Top TV Tuner Applications Introduction Modern set-top DBS TV tuners require high-performance, broadband voltage control oscillator (VCO) designs at a competitive cost. To meet these goals, design engineers are challenged to create high-performance, low-cost VCOs. The Colpitts oscillator is a traditional design used for many VCO applications. Designing a broadband Colpitts oscillator with coverage from 1–2 GHz requires the selection and interaction of an appropriate varactor diode for its resonator. This application note describes the design of a broadband Colpitts VCO that incorporates the SMV1265-011 varactor diode.
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