Murata MEMS Evaluation
Unit User Manual
Murata Electronics Oy
Subject to changes
33/34
www.murata.com
Doc.Nr. 82175700
Rev.D
Figure 47. Jumpers set for powering DUT with 3.3V AVDD and DVDD
9.2 USB
Basic operation is enabled within the normal USB supply range. Note that with just the USB supply
the 5V supply voltage option cannot be used; instead, an external 5V power supply is needed. The
reason for this is that the USB voltage level seldom is more than 5V and usually less than 5V, for
example 4.5V.
9.3 IO lines
All IO lines are level shifted. SPI and GPIO are level shifted with an SN74LVC1T45 and the I2C
lines use MOSFET-based level shifters.
9.3.1 Analog IO
The evaluation board does not have analog IO.
AVDD
jumper
DVDD
jumper
