SPECIFICATION OF DIELECTRIC TOKO P/No: 1. OUTLINE FILTER TDF2A-1575B-12 DIMENSION 1 Marking:1575-12 TOKO A=5.2 B=2.5 T=2.25 Tolerance Unit :±0.3 :mm 2. ELECTRICAL CHARACTERISTICS Center Frequency (Fo) Passband Width Input Output Impedance : 1575.4 MHz : Fo±5.0MHz : 50ohm Insertion Loss in Passband : 2.7dB max. Ripple in Passband : 1.0dB max. V.S.W.R. in Passband : 2.0 max. Attenuation : 7.0dB min. at Fo Attenuation Attenuation : : 30.0dB min. 28.0dB min. p35MHz at Fo-140MHz at Fo+140MHz (All specifications are absolute value.) 2 PRECAUTION Do not connect terminals to DC voltage. 2EV 2EV /RIG TOKO, INC. *5.% *5,9 *5,9 )SSUES 9+IKUYAMA 3/HTSUKA (3UGITA 3IG Test Data of Dielectric Filter Toko No. : TDF2A-1575B-12 0 0 10 5 20 10 30 15 40 20 50 25 60 30 70 35 80 40 90 45 100 50 Center Frequency : 1,575.40MHz Span: 500.00MHz Passband Insertion Loss 2.19dB Passband Ripple 0.03dB Passband V.S.W.R. 1.39 Attenuation at 1,435.40MHz at 1,540.40MHz at 1,610.40MHz at 1,715.40MHz 35.00dB 8.49dB 9.08dB 32.06dB Date : 95.12.25 Instrument : WILTRON 37217A Toko, INC. PCB Recommended Pattern For Dielectric Filter TOKO P/No : TDF2A-1575B-12 SUBSTRATE MATERIAL: BT Resin CCL-H870 t=0.9mm. CCl-H870’s typical dielectric constant is 3.6 at 1GHz. CAUTION: All terminals of this filter are connected to GND. Therefore, it mast be used without DC voltage. TOKO,INC.