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SCA100T View Datasheet(PDF) - Murata Manufacturing

Part Name
Description
MFG CO.
SCA100T
Murata
Murata Manufacturing Murata
'SCA100T' PDF : 17 Pages View PDF
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SCA100T Series
3 Application Information
3.1 Recommended Circuit Diagrams and Printed Circuit Board Layouts
The SCA100T should be powered from a well regulated 5 V DC power supply. Coupling of digital
noise to the power supply line should be minimized. 100nF filtering capacitor between VDD pin 12
and GND plane must be used. If regulator is placed far from component for example other PCB it
is recommend adding more capacitance between VDD and GND to ensure current drive capability
of the system. For example 470 pF and 1uF capacitor can be used.
The SCA100T has a ratiometric output. To get the best performance use the same reference
voltage for both the SCA100T and Analog/Digital converter.
Use low pass RC filters with 5.11 kΩ and 10nF on the SCA100T outputs to minimize clock noise.
Locate the 100nF power supply filtering capacitor close to VDD pin 12. Use as short a trace length
as possible. Connect the other end of capacitor directly to the ground plane. Connect the GND pin
6 to underlying ground plane. Use as wide ground and power supply planes as possible. Avoid
narrow power supply or GND connection strips on PCB.
Figure 13. Analog connection and layout example
Figure 14. SPI connection example
Murata Electronics Oy
www.muratamems.fi
Subject to changes
Doc. nr. 8261800
15/17
Rev.B2
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