features description center frequency 1575 mhz passband 1570 - 1580 mhz insertion loss (@ passband) 3.5 db @ 25c 4.00 db -40c to +85c vswr 2.0:1 1570 mhz to1580 mhz* rejection 40 db dc to 1175 mhz 40 db 1875 mhz to 3000 mhz usable temp range -55 to +125 degree c *50 ohm system mechanical footprint lxw 0.460 x 0.460 inch [11.68 x11.68] mm height 0.113 [2.87] inch [mm] frequency response catalog specifications subject to change without notice electrical specifications 1575 mhz bandpass filter ? fully shielded component ? frequency stable over temperature ? l1 band gps AFL05235 surface mount, fully shielded, thin film ceramic filter manufactured using ceramic designed for use on pcb 8 - 12 mils thick with permitivity of 3.0 - 3.8. -85 -80 -75 -70 -65 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 magnitude in db frequency in mhz typical performance 1of3 AFL05235 may 2013 revision a
-80 -70 -60 -50 -40 -30 -20 -10 0 800 1100 1400 1700 2000 2300 2600 2900 3200 magnitude in db frequency in mhz wide band performance -80 -70 -60 -50 -40 -30 -20 -10 0 1200 1300 1400 1500 1600 1700 1800 1900 magnitude in db frequency in mhz narrow band performance -50 -40 -30 -20 -10 0 1200 1300 1400 1500 1600 1700 1800 1900 magnitude in db frequency in mhz return loss -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 1400 1450 1500 1550 1600 1650 1700 magnitude in db frequency in mhz passband performance 2of3 AFL05235 may 2013 revision a
all units in inches mounting information mechanical drawing dielectric laboratories, inc. 2777 route 20 east, cazenovia, ny 13035 usa phone: (315) 655 - 8710 fax: (315) 655 - 0445 email: sales@dilabs.com pcb ground pattern length and width can be 0.002 - 0.003 inches larger than filter footprint. dimensions of filter launch and pcb launch pattern should be closely matched. it is suggested that pcb ground metal be pulled back from rf i/o trace to account for component alignment tolerance. ground via depth and spacing should be set so as not to create any resonances at the frequency of operation. reference smt filter mounting application note for additional mounting information. 3of3 AFL05235 may 2013 revision a
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