SHOULDER ELECTRONICS CO., LTD. SAW Components Data Sheet PRODUCT 产 品: SAW FILTER MODEL NO 型 号: HDF280T SMD-3 PREPARED 编 制: CHECKED 审 核: APPROVED 批 准: DATE Http://www.shoulder.cn 日 期: 2007-01-25 Page: 1 SHOULDER ELECTRONICS CO., LTD. 1.SCOPE This specification shall cover the characteristics of SAW filter F280TS3 used for the WLAN 2. DIMENSION 1. 2. 3. 4. 5. 6. 7. 8. Ground Input/output Ground Ground Ground Input/output Ground Ground 3. TEST CIRCUIT C1=C2=0pF, L1=L2=39nH Http://www.shoulder.cn Page: 2 SHOULDER ELECTRONICS CO., LTD. 4.Electrical characteristics Part Number Nominal center frequency(Fo) Insertion (Fo) 3dBBand width Spurious response Fo-60~-40MHz Fo-40~-22MHz Fo-22~-16MHz Fo+16~+22MHz Fo+22~+40MHz Fo+40~+60MHz Ripple(within passband) Input/Output impedance(Nominal) F280TS3 280 14.0max. 18min. 40 min. 37 min. 30 min. 25 min. 34 min. 40 min 2.0 min 50//39 Unit MHz dB MHz dB dB Ω//nH 5.Typical frequency response Http://www.shoulder.cn Page: 3 SHOULDER ELECTRONICS CO., LTD.