Hybrid Components Directional Coupler We accomplish the advanced characteristics of Low Insertion Loss and High Isolation,the Miniaturization and High Performance by our -wave circuit simulation and fine line printing technologies. Features Miniature, thin (1.6 X 0.8 X t 0.55) Available for each frequency range ( 700 MHz to 2500 MHz) High isolation Integrated termination resistance available Dimensions in mm (not to scale) Recommended Applications Digital portable Telephone Dual mode Portable Telephone Personal handy-phone system Mobile communication system Block Diagram Detect Out (TX) 2 GSM 1 2 BPF LNA MIX Typical Characteristics Items Part No. EHFFD EHFFD EHFFD EHFFD EHFFD EHFFD EHFFD EHFFD EHFFD EHFFD EHFFD EHFFD EHFFD 1775D 1775E 1775F 1775K 1775L 1774D 1774E 1774F 1774K 1540 1549 1541 1542 EHFFD 1812 Frequency ( MHz ) 850 to 850 to 850 to 1750 to 1750 to 850 to 850 to 850 to 1750 to 800 to 800 to 1800 to 1850 to 880 to 925 950 950 950 1950 1950 950 950 950 1950 1000 1000 2000 1950 1700 to 1900 Insertion Loss ( dB ) 0.35 max. Coupled Value(dB) 14 1 17 1 20 1 14 1 17 1 14 1 17 1 20 1 14 1 17 2 20 2 14 2 20 1 19 1,16 1 Isolation ( dB ) 22 min. 23 min. 30 min. 23 min. 27 min. 24 min. 25 min. 30 min. 25 min. 25 min. 25 min. 20 min. 26 min. 21 min. VSWR 1.3 max. 1.3 max. 1.3 max. 1.3 max. 1.3 max. 1.3 max. 1.3 max. 1.3 max. 1.3 max. 1.3 max. 1.3 max. 1.3 max. 1.3 max. 1.5 max. Size ( mm ) 1.6 0.8 1.6 0.8 1.6 0.8 1.6 0.8 1.6 0.8 2.0 1.25 2.0 1.25 2.0 1.25 2.0 1.25 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 Construction No. 1 0.25 max. 1 0.15 max. 1 0.4 max. 1 0.25 max. 1 0.4 max. 2 0.25 max. 2 0.15 max. 2 0.4 max. 2 0.25 max. 3 0.2 max. 3 0.35 max. 3 0.25 max. 3 Note 0.4 max. 2.0 1.25 4 Dual $ESIGN AND SPECIlCATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE !SK FACTORY FOR TECHNICAL SPECIlCATIONS BEFORE PURCHASE ANDOR USE 7HENEVER A DOUBT ABOUT SAFETY ARISES FROM THIS PRODUCT PLEASE CONTACT US IMMEDIATELY FOR TECHNICAL CONSULTATION