SCA61T Series
3
Application Information
3.1 Recommended Circuit Diagrams and Printed Circuit Board Layouts
The SCA61T should be powered from well regulated 5 V DC power supply. Coupling of digital
noise to power supply line should be minimized. 100nF filtering capacitor between VDD pin 8 and
GND plane must be used.
The SCA61T has ratiometric output. To get best performance use the same reference voltage for
both the SCA61T and Analog/Digital converter.
Use low pass RC filter with 5.11 kΩ and 10nF on the SCA61T output to minimize clock noise.
Locate the 100nF power supply filtering capacitor close to VDD pin 8. Use as short trace length as
possible. Connect the other end of capacitor directly to 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
VTI Technologies Oy
www.vti.fi
Subject to changes
Doc. nr. 8261900
15/18
Rev.A
VTI [ VTI TECHNOLOGIES ]
