[ dimensions] unit : mm [ characteristics] ta =25 0 c [ pin assignment ] [ equivalent circuit ] [ recommended land size] unit : mm ehf fd1775g, h, j, k, l directional coupler fd1775g fd1775h fd1775j fd1775k fd1775l 1750- 1750- 1750- 1750- 1750- 1950 1950 1950 1950 1950 2 insertion loss (out) db 3.7 max 2.0 max 0.95 max 0.4 max 0.25 max 3 coupling (d. out) db 4.5 max 6+-1 10+-1 14+-1 17+-1 4 isolation (db) 15 min 17 min 16 min 23 min 27 min 5 v.s.w.r. 1.6 max 1.3 max 1.3 max 1.3 max 1.3 max specification item no. frequency (mhz) 1 no. 1 out 2 in 3 d. out 4 r 1.6+-0.2 0.4 0.2 0.2 0.4 0.8+-0.2 0.4 0.7 1 2 4 3 0.55+-0.1 0.75 0.6 0.48 0.4 0.48 1.36 0.75 1 2 4 3 in(2) d.out(3) out(1) r(4) additional resistor 56 ohm
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