参数资料
型号: AD8180AR
厂商: ANALOG DEVICES INC
元件分类: 运动控制电子
英文描述: 750 MHz, 3.8 mA 10 ns Switching Multiplexers
中文描述: 2-CHANNEL, VIDEO MULTIPLEXER, PDSO8
封装: PLASTIC, SOIC-8
文件页数: 11/12页
文件大小: 253K
代理商: AD8180AR
AD8180/AD8182
–11–
REV. B
C1
ABOARD
IJ1
SJ10
IJ2
IJ3
IN0B
J4
J9
J8
EN A
R10
R1
U1
R2
R3
V
V
SEL B
J5
J6
EN B
A
B
C2
R5
J
R9
R8
R4
Figure 28. Component Side Silkscreen
Figure 29. Board Layout (Component Side)
C3
C4
R
R6
Figure 30. Solder Side Silkscreen
Figure 31. Board Layout (Solder Side)
NOTES
1. AD8180R/AD8182R Evaluation Board inputs are configured
with 50
impedance striplines. This FR4 board type has the
following stripline dimensions: 60-mil width, 12-mil gap
between center conductor and outside ground plane “is-
lands,” and 62-mil board thickness.
2. Several types of SMA connectors can be mounted on this
board: the side-mount type, which can be easily installed at
the edges of the board, and the top-mount type, which is
placed on top. When using the top-mount SMA connector, it
is recommended that the stripline on the outside 1/8" of the
board edge be removed with an X-Acto blade as this unused
stripline acts as an open stub, which could degrade the small-
signal frequency response of the mux.
3. Input termination resistor placement on the evaluation board
is critical to reducing crosstalk. Each termination resistor is
oriented so that ground return currents flow counterclock-
wise to a ground plane “island.” Although the direction of
this ground current flow is arbitrary, it is important that no
two input or output termination resistors share a connection
to the same ground “island.”
相关PDF资料
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