參數(shù)資料
型號(hào): AD8129ARM-REEL
廠商: ANALOG DEVICES INC
元件分類: 模擬信號(hào)調(diào)理
英文描述: Low Cost 270 MHz Differential Receiver Amplifiers
中文描述: SPECIALTY ANALOG CIRCUIT, PDSO8
封裝: MICRO, SO-8
文件頁(yè)數(shù): 38/40頁(yè)
文件大小: 549K
代理商: AD8129ARM-REEL
AD8129/AD8130
LAYOUT, GROUNDING, AND BYPASSING
The AD8129/AD8130 are very high speed parts that can be
sensitive to the PCB environment in which they operate.
Realizing their superior specifications requires attention to
various details of standard high speed PCB design practice.
Rev. C | Page 38 of 40
The first requirement is for a good solid ground plane that
covers as much of the board area around the AD8129/AD8130
as possible. The only exception to this is that the ground plane
around the FB pin should be kept a few millimeters away, and
the ground should be removed from the inner layers and the
opposite side of the board under this pin. This minimizes the
stray capacitance on this node and helps preserve the gain
flatness vs. frequency.
The power supply pins should be bypassed as close as possible
to the device to the nearby ground plane. Good high frequency
ceramic chip capacitors should be used, and the bypassing
should be done with a capacitance value of 0.01 μF to 0.1 μF for
each supply. Farther away, low frequency bypassing should be
provided with 10 μF tantalum capacitors from each supply to
ground.
The signal routing should be short and direct to avoid parasitic
effects. Where possible, signals should be run over ground
planes to avoid radiating or to avoid being susceptible to other
radiation sources.
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