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Test Report BLF574 Board #911 Linear FM 88-108 MHz CA-200-08

Test Report BLF574 Board #911 Linear FM 88-108 MHz CA-200-08. Scott Blum RF Application Lab Cumberland, RI. Introduction. NXP has introduced a new powerful part to its 50V portfolio, the BLF574 An application note has been written for FM / CW performance operating in Class B.

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Test Report BLF574 Board #911 Linear FM 88-108 MHz CA-200-08

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  1. Test Report BLF574 Board #911Linear FM 88-108 MHzCA-200-08 Scott Blum RF Application Lab Cumberland, RI

  2. Introduction • NXP has introduced a new powerful part to its 50V portfolio, the BLF574 • An application note has been written for FM / CW performance operating in Class B. • An application note has also been written for DVB-T operation in the 174-230MHz VHF band in Class AB. • This app lab report shows a compromise tune for linear FM operations in the 88-108 MHz band. • The goal of the tune is high P1dB and efficiency for CW mode, while achieving good linearity and efficiency when operating with DVB-T. • This report presents the performance of demo #911.

  3. Performance Summary CW data is at 58.3dBm, 50V; DVB-T data is at 50dBm (see Excel files for details); 2nd Harmonic data is at 500W CW.

  4. Layout –

  5. Layout Notes

  6. CW Performance – 50V

  7. 2nd Harmonic Performance

  8. DVB-T Performance - ACPR

  9. Files

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