5 frequency multipliers and active subsystems frequency shifters (doppler simulation via direct d igital synthesis) digital adjacent spurious rf pwr input frequency frequency rf sideband rej. in model in in (ser. / parr shift resolution out rejection rf, bw number (ghz) (dbm) # bits) (khz) (hz) (dbm, min.) (dbc, mi n.) (dbc) page smc0502dds 0.5 ? 2.0 +10 p, 12 (1) 20 10 -4 25 25 113 smc0206dds 2 ? 6.0 +15 p, 14 (2) 50 25 0 20 20 115 smc0506dds 5.4 ? 5.9 +10 p, 14 (2) 10 15 -5 25 25 117 smc0910dds 9.0 ? 9.25 +10 p, 14 (2) 10 15 -5 25 25 119 smc0618dds 6.0 ? 18 +20 p, 14 (2) 50 25 +5 20 20 121 notes: 1. frequency offset determined by 12 bit dip s witch, external trim pot can be used to null-carrie r feedthrough. 2. frequency offset and on/off controlled by 14 bit serial (1 mbps). rf rf pwr pwr adjacent spurious rej. in/out model in out in out sideband rej. inoctave bio vswr number (ghz) (ghz) (dbm) (dbm) (dbc, min.) (db, max.) / ( dbm) (typ.) page fem1.5 0.25 ? 1.0 1.4 ? 1.6 +10 -3 -20 ? 2.5:1 99 fem3.0 0.50 ? 2.0 2.8 ? 3.2 +10 -3 -20 ? 2.5:1 99 fomr7 .12 ? .25 .72 ? .80 +16 -19 -10 -10 2.7:1 101 sys03x20 .14 ? .16 2.8 ? 3.1 +10 -3 -50 -50 2.0:1 103 EOM0218HW4 .5 ? 3.5 2 ? 26 +18 -23 0 0 2.0:1 105 eom0226hw2 .5 ? 1.5 2 ? 18 +10 -17 0 0 2.0:1 107 td0040la2 2 ? 2.0 4 ? 40 +10 -3 n/a n/a 3.0:1 109 notes: units with ?l? diodes accept +10 to +13 dbm r f input. units with ?h? diodes accept +16 to +19 dbm rf inpu t. analog inputs digitally controlled inputs rf out rf in rf out rf in frequency offset frequency shifted carrier carrier input clock div n counter prom prom 90 d/a d/a 0 q i fem (even harmonic) eom td fom (odd harmonic) fog (n)freq section four section five model: smc0618dds 2 C 22 ghz 4 C 40 ghz rf input bias rf output srd sys (x20) subsystem x 5 x 2 x 2 filter filter filter
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