參數(shù)資料
型號(hào): MIC2555-1YML TR
廠商: Micrel Inc
文件頁數(shù): 21/29頁
文件大?。?/td> 0K
描述: IC TXRX OTG USB BUS UNIV 24MLF
標(biāo)準(zhǔn)包裝: 1
類型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 1/0
規(guī)程: USB 2.0
電源電壓: 3 V ~ 4.5 V
安裝類型: 表面貼裝
封裝/外殼: 24-VFQFN 裸露焊盤,24-MLF?
供應(yīng)商設(shè)備封裝: 24-MLF?(4x4)
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面: 1113 (CN2011-ZH PDF)
其它名稱: 576-1088-6
Micrel, Inc.
MIC2555
December 2006
28
M9999-121406
PCB Layout Recommendation
Although the USB standard and applications are not
based in an impedance-controlled environment, a
properly designed PCB layout is recommended for
optimal transceiver performance. The suggested PCB
layout hints are as follows:
Match signal line traces (VP/VM, D+ D–) and try to
keep them as short as possible.
For every signal line trace width (w), separate the
signal lines by 1.5-2 widths. Place all other traces at
>2w from all signal line traces.
Control signal line impedances to ±10%.
Keep Rseries as close to the IC as possible, with
equal distance between Rseries and the IC for both D+
and D–.
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