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CXG1047FN - Dual-Band 3V Power Amplifier

Description

The CXG1047FN dual band GaAs PA is a 3-stage power amplifier that may be used for both GSM900 and DCS1800 applications.

To achieve minimum die-size and package dimensions, it contains one amplifier chain with a single input and output.

Features

  • Single positive rail only.
  • Typical output power of 35.5dBm at 900MHz and 33dBm at 1800MHz.
  • Typical efficiency of 37% at 900MHz and 37% at 1800MHz.
  • Small package size with integral heat-sink: 16-pin HSOF (5.6 × 4.4 × 0.9mm).
  • 3-stage amplifier chain.
  • Simple pin diode circuitry is used to switch between 1800 and 900MHz matching circuits.
  • Off mode insertion loss typically 27dB at 900MHz (Pin = +6dBm at VDD = 0V).
  • Typical transm.

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Full PDF Text Transcription

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CXG1047FN Dual-Band 3V Power Amplifier for GSM900/DCS1800 Applications Description The CXG1047FN dual band GaAs PA is a 3-stage power amplifier that may be used for both GSM900 and DCS1800 applications. To achieve minimum die-size and package dimensions, it contains one amplifier chain with a single input and output. The PA has a single RF input for both the GSM900 and DCS1800 transmit signals. The amplifier can be configured for 2 separate inputs. Power control is best achieved by variation of VDD1/VDD2 and VDD3 drain voltages with an external transistor. A proposed power control circuit configuration is described. External PMOS drain switch should be used to achieve low leakage. 16 pin HSOF (Plastic) Features • Single positive rail only • Typical output power of 35.
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