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Hereafter the number (6) and frequencies expected from the PCDU APRs DC/DC Converters (data from frequency plan provided by ADS).
APR#1 DC/DC Converter (~120 kHz) | 117,6 | Not Xtal | ~84Hz/degC. For a 5 degC variation over 1 hour, Δf/f=0.3%; during TVAC frequency drift <100 ppm/h for 4 degC variation of PCDU temperature |
APR#2 DC/DC Converter (~120 kHz) | 118,4 | Not Xtal | ~84Hz/degC. For a 5 degC variation over 1 hour, Δf/f=0.3%; during TVAC frequency drift <100 ppm/h for 4 degC variation of PCDU temperature |
APR#3 DC/DC Converter (~120 kHz) | 119,3 | Not Xtal | ~84Hz/degC. For a 5 degC variation over 1 hour, Δf/f=0.3%; during TVAC frequency drift <100 ppm/h for 4 degC variation of PCDU temperature |
APR#4 DC/DC Converter (~120 kHz) | 120,7 | Not Xtal | ~84Hz/degC. For a 5 degC variation over 1 hour, Δf/f=0.3%; during TVAC frequency drift <100 ppm/h for 4 degC variation of PCDU temperature |
APR#5 DC/DC Converter (~120 kHz) | 121 | Not Xtal | ~84Hz/degC. For a 5 degC variation over 1 hour, Δf/f=0.3%; during TVAC frequency drift <100 ppm/h for 4 degC variation of PCDU temperature |
APR#6 DC/DC Converter (~120 kHz) | 121,1 | Not Xtal | ~84Hz/degC. For a 5 degC variation over 1 hour, Δf/f=0.3%; during TVAC frequency drift <100 ppm/h for 4 degC variation of PCDU temperature |
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