1 ? typical isolation = 23 db ? typical insertion loss = 0.5 db ? msl 1 moisture rating ? lead - free/rohs - compliant soic - 8 plastic package with exposed back side ground pad berexs divider BD25B is designed for pcs, wcdma & td - scdma and wibro band with low insertion loss and isolation. this chip is fully passivated for enhanced performance and reliability and packaged in rohs - compliant with soic - 8 surface mount pack- age. it can be used without back side ground soldering. (this may degrade the perform- ance at the high frequency edge.) product description device features ? base station infrastructure ? commercial/industrial/military wireless system applications evaluation board drawing typical performance 1 absolute maximum ratings berex website: www.berex.com email: sales@berex.com specifications and information are subject to change and products may be discontinued without notice. berex is a trademark o f b erex. all other trademarks are the property of their respective owners. ? 2010 berex parameter min typical max unit frequency range 1700 2500 mhz insertion loss 0.5 0.8 db isolation 15 23 db irl(s11) - 20 - 15 dbm orl(s22/s33) - 23 - 15 dbm amplitude balance 0.05 0.2 db phase balance 0.7 2.0 deg parameter rating input power 1w cw dbm storage temperature - 55 to +155c operating temperature - 40 to +85c operation of this device above any of these parameters may result in permanent damage. rev. c *all specifications apply to the following test conditions, 1. device performance _ measured on berex e/b at 25 c, 50ohm system. 2. insertion loss: above 3.0db. 3. back side ground _ soldered. function block diagram pins 1,3,4,6 and 7 must be dc and rf grounded. quadruple band 2 - way smt power divider BD25B 1700~2500mhz uspcs & pcs, wcdma & td - scdma, wibro
2 typical test data with back side ground soldering without back side ground soldering quadruple band 2 - way smt power divider BD25B 1700~2500mhz uspcs & pcs, wcdma & td - scdma, wibro parameters unit uspcs & pcs td - scdma wcdma wibro frequency range mhz 1700 1800 1900 1900 2075 2250 2200 2350 2500 insertion loss db 0.37 0.38 0.38 0.38 0.42 0.53 0.48 0.60 0.75 isolation db 19.6 20.8 21.9 21.9 25.7 28.9 30.6 22.2 15.5 irl(s11) db - 21.3 - 23.7 - 25.4 - 25.4 - 22.0 - 17.3 - 18.5 - 15.2 - 12.6 orl(s22,s33) db - 24.4 - 32.2 - 33.9 - 33.9 - 24.7 - 22.4 - 22.6 - 22.5 - 22.7 phase diff. deg 0.2 0.2 0.3 0.3 0.4 0.5 0.5 0.7 0.7 amplitude balance db 0.07 0.07 0.07 0.08 0.09 0.10 0.10 0.12 0.10 parameters unit uspcs & pcs td - scdma wcdma wibro frequency range mhz 1700 1800 1900 1900 2075 2250 2200 2350 2500 insertion loss db 0.40 0.41 0.42 0.42 0.49 0.64 0.59 0.75 0.94 isolation db 19.5 21.1 22.7 22.7 26.3 23.6 25.7 19.0 13.7 irl(s11) db - 20.8 - 21.7 - 21.1 - 21.1 - 17.8 - 14.3 - 15.2 - 12.4 - 10.2 orl(s22,s33) db - 25.9 - 37.8 - 31.5 - 31.5 - 22.8 - 20.3 - 20.6 - 19.9 - 19.4 phase diff. deg 1.5 1.5 1.6 1.6 1.7 1.7 1.7 1.7 2.0 amplitude balance db 0.08 0.08 0.09 0.09 0.11 0.10 0.11 0.10 0.08 berex website: www.berex.com email: sales@berex.com specifications and information are subject to change and products may be discontinued without notice. berex is a trademark o f b erex. all other trademarks are the property of their respective owners. ? 2010 berex rev. c
3 insertion loss vs. frequency isolation vs. frequency irl vs. frequency orl vs. frequency notes) - bg: data taken with backside ground soldering - nbg: data taken without backside ground soldering quadruple band 2 - way smt power divider BD25B 1700~2500mhz uspcs & pcs, wcdma & td - scdma, wibro berex website: www.berex.com email: sales@berex.com specifications and information are subject to change and products may be discontinued without notice. berex is a trademark o f b erex. all other trademarks are the property of their respective owners. ? 2010 berex rev. c
4 package outline drawing quadruple band 2 - way smt power divider BD25B 1700~2500mhz uspcs & pcs, wcdma & td - scdma, wibro berex website: www.berex.com email: sales@berex.com specifications and information are subject to change and products may be discontinued without notice. berex is a trademark o f b erex. all other trademarks are the property of their respective owners. ? 2010 berex rev. c
5 suggested pcb land pattern and pad layout pcb land pattern pcb mounting note : all dimension _ millimeters pcb lay out _ on berex website tape & reel packaging information: tape width (mm): 12 reel size (inches): 7 device cavity pitch (mm): 8 devices per reel: 1000 lead plating finish 100% tin matte finish (all berex products undergoes a 1 hour, 150 degree c, anneal bake to eliminate thin whisker growth concerns.) msl / esd rating msl rating: standard: level 3 at +265c convection reflow jedec standard j - std - 020 nato cage code: 2 n 9 6 f quadruple band 2 - way smt power divider BD25B 1700~2500mhz uspcs & pcs, wcdma & td - scdma, wibro berex website: www.berex.com email: sales@berex.com specifications and information are subject to change and products may be discontinued without notice. berex is a trademark o f b erex. all other trademarks are the property of their respective owners. ? 2010 berex rev. c 0 . 0 1 8 " ( 0 . 4 5 ) 0 . 0 4 7 " ( 1 . 2 0 ) 0 . 0 7 6 " ( 1 . 9 2 ) 0 . 1 5 7 " ( 3 . 9 8 ) 0 . 1 9 8 " ( 5 . 0 2 ) 0 . 0 3 0 " ( 0 . 7 6 ) 0 . 0 4 0 " ( 1 . 0 1 ) r f i n r f o u t 1 r f o u t 2 s o i c 8 s o i c 8 - p a r t o r i e n t a t i o n d i r e c t i o n o f f e e d
|
