Transcription of LCフィルタの高周波減衰量を向上させる - TI
1 Application Note AN028. JAJA114. LC . By K. H. Torvmark . LC .. T .. Pi T Pi Chipcon . 915 MHz . T LC ..1..1..2. Pi RF ..2. T RF ..2..3..5..5.. 1 Pi LC ..2. 2 T LC ..2. 3 Pi ..3. 4 T ..4. Texas Instruments Incorporated TI SWRA064 .. TI .. TI TI .. TI TI .. JAJA114.. RF .. 1 coupling .. Regional regulations . T RF . 2 .. T .. 2 1 .. Pi . [3] . 2 .. Pi RF .. Chipcon . PCB . Pi 2 .. 1 3dB . LC L71 C71 . C72 50 .. L171 L172. C171. C RF 1 L= C=. 1 C C. C = 2 fC fc 2. T LC . C = 2 fRF fRF RF . [1] .. Pi T [2]. L71. C71 C72 Z L 71 Z C 71. Z L171 =. Z C72 + Z C 71 + Z L 71. Z C72 Z C71. Z C171 =. Z C72 + Z C 71 + Z L 71. 1. Pi LC . Z C 72 Z L 71. Z L172 =. Z C 72 + Z C 71 + Z L 71. 2. JAJA114.. / .. 3. Pi . 3 868/915 MHz . Pi LC PCB.
2 C71 = C72 = L71 = .. 3. JAJA114.. / .. 4. T . 4 C171 = L171 =. T 16nH L172 = 16nH C171 = . L171 = 15nH L172 = 15nH PCB . 4. JAJA114.. 1 HyDesign Ltd, RFSim99. 1999. Downloadable from or 2 P. Vizmuller, RF Design Guide. Artec House, 1995. 3 Chipcon, AN001: SRD Regulations. Downloadable from .. 5. IMPORTANT NOTICE. IMPORTANT NOTICE. TIJ Texas TI TI . Instruments Incorporated TIJ TIJ Texas Instruments .. TI . Incorporated . TI .. TI .. TIJ TI TI .. TI .. TIJ .. TI .. TI .. TIJ .. TI .. TI . TI . TI . TI . TI .. TI .. TI .. TI . TI . TI TI TI .. TI TI . TI .. TI .. TI . TI .. TI .. TI.. ISO/TS 16949 TI .. TI TI . TI . TI .. Copyright 2009, Texas Instruments Incorporated .. / 3.. 1.. 4.. 5.. 260 10 .. 6.. 2.. 0 40 40 85.
