1575 MHz Bandpass Filter AFL05235 Features ▪ L1 Band GPS ▪ Fully Shielded Component ▪ Frequency Stable over Temperature Description 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. Electrical Specifications 1575 MHz Center Frequency 1570 - 1580 MHz Passband 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 -55 to +125 degree C Usable Temp Range *50 Ohm System Mechanical Footprint LxW 0.460 x 0.460 inch [11.68 x11.68] mm 0.113 [2.87] Height Inch [mm] Typical Performance Magnitude in dB 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 Frequency Response -55 -60 -65 -70 -75 -80 -85 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 Frequency in MHz 2000 2100 2200 2300 2400 2500 2600 Catalog specifications subject to change without notice 1of3 AFL05235 May 2013 Revision A Wide Band Performance -10 -10 -20 -20 -30 -40 -50 -30 -40 -50 -60 -60 -70 -70 -80 800 1100 1400 1700 2000 2300 Frequency in MHz 2600 2900 -80 1200 3200 Return Loss 0 Narrow Band Performance 0 Magnitude in dB Magnitude in dB 0 1300 1400 1500 1600 1700 Frequency in MHz 1800 1900 Passband Performance 0 -2 -10 -4 Magnitude in dB Magnitude in dB -6 -20 -30 -40 -8 -10 -12 -14 -16 -18 -50 1200 2of3 1300 1400 1500 1600 1700 Frequency in MHz 1800 1900 -20 1400 AFL05235 1450 1500 1550 1600 Frequency in MHz 1650 1700 May 2013 Revision A Mechanical Drawing All units in inches Mounting Information 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. Dielectric Laboratories, Inc. 2777 Route 20 East, Cazenovia, NY 13035 USA Phone: (315) 655-8710 Fax: (315) 655-0445 Email: [email protected] 3of3 AFL05235 May 2013 Revision A