[ dimensions] unit : mm [ characteristics] ta =25 0 c [ pin assignment ] [ equivalent circuit ] [ recommended land size] unit : mm ehf fd1774g, h, j, k directional coupler fd1774g fd1774h fd1774j fd1774k 1750- 1750- 1750- 1750- 1950 1950 1950 1950 2 insertion loss (out) db 3.5 max 2 max 0.95 max 0.4 max 3 coupling (d. out) db 4.5 max 6+-1 10+-1 14+-1 4 isolation (db) 17 min 14 min 17 min 25 min 5 v.s.w.r. 1.3 max 1.3 max 1.3 max 1.3 max specification item no. frequency (mhz) 1 no. 1 in 2 gnd 3 out 4 r 5 gnd 6 d. out 1 0.65 2.65 1 0.35 0.3 1 2 6 5 4 3 2+-0.2 0.65 0.3 0.3 0.95+-0.1 0.3 0.35 0.65 1.25+-0.2 1 2 6 5 4 3 in(1) d.out(6) out(3) r(4) additional resistor 56 ohm
|
