13 the ifdmlim series fm demodulators have excellent if-to- baseband characteristics in their respective operating bands. these demodulators receive fm modulated carriers at different center frequencies and recover the baseband information with high fidelity. the application of these demodulators are in satel- lite communications and test equipment. features ? excellent if-to-baseband characteristics ? excellent baseband frequency response ? wide deviations high-performance wide bandwidth and wide deviation fm demodulator module ifdmlim series peak-to-peak linear parabolic total model deviation linearity group delay group delay group delay number * (mhz) (%) (ns/mhz) (ns/mhz 2 ) (ns) ifdmlim-21.4-6-1.5-i/o 6 1.5 - - 4 ifdmlim-21.4-8-2.0-i/o 8 2 - - 5 ifdmlim-21.4-10-2.5-i/o 10 2.5 - - 5 ifdmlim-30-8-1.2-i/o 8 1.2 - - 4 ifdmlim-30-10-1.5-i/o 10 1.5 - - 4.5 ifdmlim-30-15-2.0-i/o 15 2 - - 5 ifdmlim-70-10-0.5-i/o 10 0.5 0.04 0.01 - ifdmlim-70-20-0.75-i/o 20 0.75 0.05 0.04 - ifdmlim-70-30-1.5-i/o 30 1.5 0.03 0.007 - ifdmlim-70-30-1.0-i/o 30 1 0.025 0.006 - ifdmlim-70-36-1.25-i/o 36 1.25 0.03 0.006 - ifdmlim-70-36-1.0-i/o 36 1 0.03 0.006 - ifdmlim-70-40-1.25-i/o 40 1.25 0.04 0.006 - ifdmlim-140-20-0.75-i/o 20 0.75 0.05 0.04 - ifdmlim-140-30-0.75-i/o 30 0.75 0.025 0.006 - ifdmlim-140-36-1.25-i/o 36 1.25 0.03 0.006 - ifdmlim-140-40-1.25-i/o 40 1.25 0.04 0.006 - ifdmlim-140-50-1.5-i/o 50 1.5 0.04 0.006 - ifdmlim-160-20-0.75-i/o 20 0.75 0.05 0.04 - ifdmlim-160-30-0.75-i/o 30 0.75 0.025 0.006 - ifdmlim-160-36-1.25-i/o 36 1.25 0.03 0.006 - ifdmlim-160-40-1.25-i/o 40 1.25 0.04 0.006 - ifdmlim-160-50-1.5-i/o 50 1.5 0.04 0.006 - ifdmlim-160-60-1.8-i/o 60 1.8 0.04 0.006 - * i = input impedance; o = output impedance. for impedance of 75 ohms, i or o = 7; for impedance of 50 ohms, i or o = 5. 70 mhz fm demodulators 140 mhz fm demodulators 160 mhz fm demodulators 21.4 mhz fm demodulators 30 mhz fm demodulators
14 input impedance .................................................. 50 or 75 ohms input return loss .................................................. 20 db minimum input level ............................................................ -5 to +8 dbm (see options) baseband output frequency response................. 10 hz to 6 mhz, 0.25 db maximum 10 hz to 10 mhz, 0.5 db maximum demodulation sensitivity ...................................... 40 mv/mhz nominal (see options) output impedance ............................................... 50 or 75 ohms output return loss ................................................ 26 dbm minimum to 10 mhz primary power requirements current/voltage .................................................... 250 ma @ +15 volts 60 ma @ -15 volts physical dimensions .......................................................... 6.6 x 2.9 x .75 connectors input/output.......................................................... sma female dc power, housing ground .................................. 9-pin male, d type ifdm1 demodulation sensitivity (customer to specify). ifdm2 if input level (customer to specify). ifdm3 if baseband level adjust (customer to specify). ifdm4 if input center frequency (customer to specify). common electrical specifications mechanical specifications options
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