no. cd386 - 01 all the technical data and information contained herein are subject to change wit hout prior notice. dual matching filter 1. characteristics (at - 40~+85 c ) part number LFD21868MMF1D386 frequency range (bw) 891.50 23.50 mhz ant port impedance (nominal) 50 tx/rx/ trx port impedance (nominal) conjugate match with cc112x insertion loss in bw tx 2.0 db max rx 3.3 db max. attenuation (absolute value) tx 35.0 db min. at 1736.00 ~ 1830.00 mhz 37.0 db min. at 2604.00 ~ 2745.00 mhz tx port v.s.w.r. in bw 1.5 max . rx port v.s.w.r. in bw 2.2 max . power capacity 500 mw max. 2. construction, dimensions & marking 3. land pattern mark meaning a dir e ctional input mark ( in mm) mark dimension mark dimension l 2.000.15 a2 0.300.15 w 1.250.15 c1 0.200.15 t 0.7 max. c2 0.200.15 a1 0.250.15 p1 0.50 0.15 terminal configuration terminal no. terminal name terminal no. terminal name (1) gnd ( 6 ) rx1(lna_n) (2) in ( 7 ) rx2 (lna_p) ( 3 ) nc (8) trx (4) gnd (9) tx(pa) ( 5 ) gnd (10) gnd terminal of nc should be fixed to the no connected pattern. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) l a t w c 1 a1 p1 a 2 c 2 (in mm) line width to be designed to match 50 characteristic impedance, depending on pcb material and thickness. * * * * * 0.100 0.400 0.600 0.900 0 . 9 2 5 0 . 4 2 5 0 . 2 7 5 1 . 0 2 5 1 . 0 7 5 0 . 2 7 5 1.300 0.800 0 . 1 5 0 land solder resist no pattern solder resist through hole ? 0.30
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