f tech Corporation 16, Nan-ke 9th Rd., Science-based Industrial Park, Tainan, Taiwan Tel: +886-6-6008999 Fax: +886-6-5050826 http://www.f-tech.com.tw Model No.: FF1842M50-LS72 1842.50 MHz SAW Filter for cellular telephone A. Maximum ratings: 1. Input power level: 15 dBm max. 2. DC Permissive Voltage: 10V DC max. 3. Operating temperature: -20°C to +70°C 4. Storage temperature: -40°C to +85°C B. Electrical specifications: Item Center frequency, f0 Pass-band width, BW Insertion loss, IL (15°C to +70°C) within 1805 ~1815 MHz (-20°C to 15°C) within 1815 ~1870 MHz within 1870 ~1880 MHz Absolute stop band attenuation 0 ~ 1590 MHz 1590 ~ 1720 MHz 1720 ~ 1765 MHz 1765 ~ MHz 1785 1920 ~ MHz 1980 1980 ~ 4000 MHz VSWR within 1805 ~ 1880 MHz Source / Load impedance f tech Corporation Rev. No.: Preliminary Unit MHz MHz Min. - Typ. 1842.5 75 Max. - dB dB dB dB - 3.0 1.8 3.0 3.3 3.7 3.0 3.3 dB dB dB dB dB dB dB Ω 18 20 25 8 15 20 - 19 22 27 30 24 23 2.2 50 2.6 - Page 1 of 3 FF1842M50-LS72 C. Characteristics: f tech Corporation Page 2 of 3 FF1842M50-LS72 D. Package and pin configuration: (Unit: mm) Pin 1: Input Pin 2: Case Ground Pin 4: Output Pin 5: Case Ground Pin 3: Ground f tech Corporation Page 3 of 3