特性阻抗簡介ppt課件-資料下載頁
2025-05-05 02:21本頁面
【正文】 for a stripline. (c) εr , Relative permittivity – Higher εr results in a lower impedance value (d) Dielectric thickness between signal and ground – Lower impedance as thickness decreases. (e) Use thinnest copper allowable consistent with other design requirements. Impedance values decreases as the copper thickness increases. Confidential 同健 (惠陽 )電子有限公司 TONG JIANG (f) Keep controlled impedance conductors at least mm from the edge of the reference plane. (g) Avoid placing conductors over copper void areas greater than mm square. (h) Route critical conductors on inner layer between reference plane or buried outer layer. (i) Avoid “extreme” builds such as fine conductors or thick board construction. (j) Place test control coupon in the circuit area or use active conductors with adjacent reference point ( mm) as the test coupon. (k) Use different conductor codes for each controlled impedance. Impedance control design guideline Confidential 同健 (惠陽 )電子有限公司 TONG JIANG Digital Oscilloscope ?特性阻抗的量測 Step Pulse Generator ?時域反射儀 (Time Domain Reflectometry 。 TDR) Incident Wave Reflected Wave Transmission Line Under Test
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號-1