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SA910 - Variable gain RF predriver amplifier

Description

The SA910 is a variable gain predriver amplifier designed for handheld analog cellular telephones.

When used with a UHF power transistor, it forms a cost-effective, low-profile, surface mount power amplifier solution (1.2W maximum PAE > 50%).

Features

  • MMIC BiCMOS predriver amplifier.
  • Low voltage 2.7 to 5.5V single supply operation.
  • 820 to 905MHz bandwidth.
  • High power gain >20dB.
  • High power output >23dBm (typical) @ 3V.
  • Efficiency = 35% (typical).
  • Wide gain control range: >32dB.
  • Few external components required.
  • Integrated power detector and comparison gain control circuitry.
  • 50Ω input, open-collector output.
  • SSOP-20 package.
  • Integrate.

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Full PDF Text Transcription

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INTEGRATED CIRCUITS SA910 Variable gain RF predriver amplifier Product specification 1997 Aug 12 Philips Semiconductors Philips Semiconductors Product specification Variable gain RF predriver amplifier SA910 DESCRIPTION The SA910 is a variable gain predriver amplifier designed for handheld analog cellular telephones. When used with a UHF power transistor, it forms a cost-effective, low-profile, surface mount power amplifier solution (1.2W maximum PAE > 50%). The SA910 integrates power detection and control circuitry that is stabilized over temperature and voltage. In power down mode, the SA910 draws less than 10µA of current. The SA910 is fabricated using Philips QUBiC BiCMOS process.
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