mm908e622 Freescale Semiconductor, Inc, mm908e622 Datasheet - Page 57

• Manufacturer Part Number: mm908e622
• Description: Mm908e622 Integrated Quad Half-bridge, Triple High-side And Ec Glass Driver With Embedded Mcu And Lin For High End Mirror
• Manufacturer: Freescale Semiconductor, Inc

EMC/EMI RECOMMENDATIONS
recommendations to improve EMC/EMI performance.
Further generic design recommendations can be e.g. found
on the Freescale web site www.freescale.com.
VSUP terminals (VSUP[1:8])
decoupling capacitor close to the VSUP terminals to improve
EMC/EMI behavior.
LIN terminal
Discharge) its recommended to place a high quality ceramic
decoupling capacitor near the LIN terminal. An additional
varistor will further increase the immunity against ESD. A
ferrite in the LIN line will suppress some of the noise induced.
Voltage regulator output terminals (VDD and VSS)
stabilize the regulated voltage.
Analog Integrated Circuit Device Data
Freescale Semiconductor
This paragraph gives some device specific
Its recommended to place a high quality ceramic
For DPI (Direct Power Injection) and ESD (Electrostatic
Use a high quality ceramic decoupling capacitor to
V
LIN
SUP
V1
D1
L1
C1
+
C2
C5
Figure 34. EMC/EMI recommendations
VSUP[1:8]
LIN
GND[1:4]
MM908E622
MCU digital supply terminals (EVDD and EVSS)
duration current demands on the power supply. To prevent
noise problems, take special care to provide power supply
bypassing at the MCU. It is recommended that a high quality
ceramic decoupling capacitor be placed between these
terminals.
MCU analog supply terminals (VREFH/VDDA and VREFL/
VSSA)
important to take special care on the layout. The MCU digital
and analog supplies should be tied to the same potential via
separate traces and connected to the voltage regulator
output.
schematics and layout level and Table
recommended external components and layout
considerations.
Fast signal transitions on MCU terminals place high, short-
To avoid noise on the analog supply terminals, its
Figure 34
VDDA/VREFH
VSSA/VREFL
EVDD
EVSS
VDD
VSS
and
C3
Figure 35
C4
show the recommendations on
23
Typical Applications
indicates
908E622
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