參數(shù)資料
型號(hào): DS21FT44N
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: Digital Transmission Controller
英文描述: DATACOM, FRAMER, PBGA300
封裝: 27 X 27 MM, 1.27 MM PITCH, MCMBGA-300
文件頁數(shù): 21/117頁
文件大?。?/td> 691K
代理商: DS21FT44N
DS21FT44/DS21FF44
117 of 117
POWER SUPPLY DECOUPLING
In a typical PCB layout for the MCM, all of the VDD pins will connect to a common power plane and all
the VSS lines will connect to a common ground plane. The recommended method for decoupling is
shown below in both schematic and pictorial form. As shown in the pictorial, the capacitors should be
symmetrically located about the device. Figure 24-1 uses standard capacitors, two .47 uf ceramics and
two .01uf ceramics. Since VDD and VSS signals will typically pass vertically to the power and ground
planes of a PCB, the decoupling caps must be placed as close to the DS21Fx4y as possible and routed
vertically to power and ground planes.
Figure 24-1. DECOUPLING SCHEME USING STANDARD TANTALUM CAPS
.01
VDD
DS21Fx4y
.47
.01
.47
DS21Fx4y
相關(guān)PDF資料
PDF描述
DS21FT44 DATACOM, FRAMER, PBGA300
DS21Q352 DATACOM, PCM TRANSCEIVER, PBGA256
DS21Q354 DATACOM, PCM TRANSCEIVER, PBGA256
DS21Q41BT DATACOM, FRAMER, PQFP128
DS21Q42TN DATACOM, FRAMER, PQFP128
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