Spectrum Analysis Back to Basics – Definitions and Measurements

Spectrum Analysis Back to Basics – Definitions and Measurements
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Spectrum Analysis Back to Basics – Definitions and Measurements

  • PXA Simplified Block Diagram (160 MHz BW)0-3.6 GHz low band3 Hz-50 GHzInputCal input8.3-14 GHz LO10.9M.3M4.8 GHz LORF converter2nd converterFPGA300 MHz LO200 MHz CK100 MHzCKADCADCSwitched filters,F0=22.5 MHz140 MHz3.5-50 GHz high bandFPGA160 MHzFront EndSwept IF, 10 MHz & 25 MHz BW (option B25) 25 MHz966K303K79K9KSwitched filters,F0=322.5 MHz160 MHz BW (option B1X)2 2 6 10 20 30RF preamp40 MHz400 MHz CK40 MHz BW (option B40)ADCF0=250 MHzF0=322.5 MHzLinearityCorrections1 dB-step electronic atten4 GHzASIC2GbyteSDRAMASIC2GbyteSDRAMDACAuxIF Out.SAWACPElectronic Preamp, e-attenuatorand calibrator switches160 MHz PathADC Nominal bits: 14ADC Effective bits: 11.2SFDR: up to 75 dBcPXA Wideband analysis Back to Basics Training69F0=300 MHz