台灣嘉碩科技股份㈲限公司 TAI-SAW TECHNOLOGY CO., LTD. 桃園縣平鎮工業區工業㆓路3號 No.3, Industrial 2nd Rd., Ping-Chen Industrial District, Taoyuan, Taiwan, R.O.C. TEL : 886-3-4690038 FAX : 886-3-4697532 http:/www.taisaw.com E-mail : [email protected] SAW Filter 1842.5 MHz for Mobile Communication REV. NO.:2 MODEL NO.: TA1842FG A. MAXIMUM RATING: 1.Input Power Level: 13 dBm 2.DC voltage: 0 V 3.Operating Temperature: -30°C to +85°C 4.Storage Temperature: -40°C to +85°C B. ELECTRICAL CHARACTERISTICS: Item Min. Typ. Max. - 1842.5 2.2 1.3 3.8 2.3 20.0 22.0 10.0 25.0 24.5 25.0 23.5 28.0 - 17.0 VSWR within 1805 ~1880 MHz Source impedance Zs (Ω) Load impedance ZL (Ω) Note1. No matching network required for operation at 50 Ω 30.0 1.9 50 50 2.6 - Center frequency Fc (dB) Insertion loss within 1805 ~1880 MHz IL (dB) Amplitude ripple (p-p) within 1805 ~ 1880 MHz (dB) Attenuation (Reference level from 0 dB) D.C. ~ 1500 MHz (dB) 1600 ~ 1710 MHz (dB) 1710 ~ 1785 MHz (dB) 1920 ~ 3120 MHz (dB) 3120 ~ 4000 MHz (dB) TAI-SAW TECHNOLOGY CO., LTD. 1 C. Frequency Characteristics : Transfer function TAI-SAW TECHNOLOGY CO., LTD. 2 Reflections Functions : S11 VSWR S22 VSWR TAI-SAW TECHNOLOGY CO., LTD. 3 D. MEASUREMENT CIRCUIT: HP Network analyzer 50Ω B SAW Filter E 50Ω A,C,D,F E.OUTLINE DRAWING: T H F TAI-SAW TECHNOLOGY CO., LTD. 4 F. PACKING: 1. REEL DIMENSION 2. TAPE DIMENSION TH F Note 1 Note : 1. Pocket position relative to sprocket hole measured as true position of pocket, not pocket hole. TAI-SAW TECHNOLOGY CO., LTD. 5 G. Reflow Profile: 1. Preheating shall be fixed at 140 ~ 160 ℃ for 60 ~ 90 seconds. 2. Ascending time to preheating temperature 150 ℃ shall be 30 seconds min. 3. Heating shall be fixed at 200 ℃ for 50 ~ 60 seconds and at 230±10 ℃ peak. IR-reflow Profile 260 Peak (240℃max) 240 220 200 Go down Temp/degC 180 160 gradually Heating 140 Preheating 120 (200℃) (140~160℃) 100 80 60 40 20 0 0 20 40 60 80 100 120 140 160 180 200 220 240 260 Time/sec 30sec. min 60 ~ 90 sec. 50 ~ 60 sec. TAI-SAW TECHNOLOGY CO., LTD. 6