Travis Newton LO-IF Engineer EVLA LO/IF PDR January IF Downconverter Travis Newton LO/IF Engineer Travis Newton LO-IF Engineer EVLA LO/IF PDR January IF Downconverter -Converts 8-12 GHz IF to two 2-4 GHz baseband IFs for 3-bit, 4GHz sampling -Converts 8-12 GHz IF to one 1-2 GHz baseband IFs for 8-bit, 2GHz sampling Travis Newton LO-IF Engineer EVLA LO/IF PDR January IF Downconverter Specifications ITEMSPECIFICATIONNOTES Number of modules 1244 per antenna plus 12 spares Number of IF inputs per module 1 Input frequency range 7.5 12.5 GHz Travis Newton LO-IF Engineer EVLA LO/IF PDR January IF Downconverter Specifications ITEMSPECIFICATIONNOTES Input power level -45 dBm/GHz Variation of power spectral density +/- 1.5 dB Headroom> 20 dB Travis Newton LO-IF Engineer EVLA LO/IF PDR January IF Downconverter Specifications ITEMSPECIFICATIONNOTES Number of LO per module 32 independently tunable, 1 fixed Frequency range of LO 10.8 14.8 GHz, GHz fixed Power level LO +10 dBm Travis Newton LO-IF Engineer EVLA LO/IF PDR January IF Downconverter Specifications ITEMSPECIFICATIONNOTES Spurious levels of LO 70 dB Travis Newton LO-IF Engineer EVLA LO/IF PDR January IF Downconverter Specifications ITEMSPECIFICATIONNOTES Total power detector response time TBD Phase linearity 2.8 nsec / any 2 MHz InterfaceTBD M&CTBD Travis Newton LO-IF Engineer EVLA LO/IF PDR January IF Downconverter Filters: Phase Linearity: < +/- 25 across any 2 GHz Amplitude: 0.5 dB pp Delay matched: < 15 across 80% centered BW Phase w/ Temp: