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參數(shù)資料
| 型號： | KIT908E624DWBEVB |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 24/39頁 |
| 文件大?。?/td> | 0K |
| 描述： | KIT EVAL 908E624 TRPL W/MCU/LIN |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | HC08, SMARTMOS™ |
| 類型： | MCU |
| 適用于相關(guān)產(chǎn)品： | MM908E624 |
| 所含物品： | 板，線纜，CD |
| 相關(guān)產(chǎn)品： | MM908E624ACEWR2DKR-ND - IC SWITCH TRPL HI MCU/LIN 54SOIC MM908E624ACEWR2CT-ND - IC SWITCH TRPL HI MCU/LIN 54SOIC MM908E624ACDWB-ND - IC TRPL SWITCH MCU/LIN 54-SOIC MM908E624ACDWBR2-ND - IC TRPL SWITCH MCU/LIN 54-SOIC MM908E624AYEWR2-ND - IC TRPL SWITCH MCU/LIN 54-SOIC MM908E624AYEW-ND - IC TRPL SWITCH MCU/LIN 54-SOIC MM908E624ACEWR2TR-ND - IC SWITCH TRPL HI MCU/LIN 54SOIC MM908E624ACEW-ND - IC SWITCH TRIPLE MCU/LIN 54-SOIC |
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Analog Integrated Circuit Device Data
30
Freescale Semiconductor
908E624
TYPICAL APPLICATIONS
EMC/EMI RECOMMENDATIONS
This paragraph gives some device specific
recommendations to improve EMC/EMI performance.
Further generic design recommendations can be found on
the Freescale website: www.freescale.com.
VSUP Pins (VSUP1 and VSUP2)
Its recommended to place a high quality ceramic
decoupling capacitor close to the VSUP pins to improve
EMC/EMI behavior.
LIN Pin
For DPI (Direct Power Injection) and ESD (Electro Static
Discharge) it is recommended to place a high quality ceramic
decoupling capacitor near the LIN pin. 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 Pins (VDD and AGND)
Use a high quality ceramic decoupling capacitor to
stabilize the regulated voltage.
MCU Digital Supply Pins (EVDD and EVSS)
Fast signal transitions on MCU pins place high, short
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 pins.
MCU Analog Supply Pins (VREFH, VDDA, VREFL, and
VSSA)
To avoid noise on the analog supply pins it is 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 15 indicates
recommended external components and layout
considerations.
Figure 20. EMC/EMI Recommendations
MM908E624
VREFL
VDDA
EVDD
VDD
EVSS
AGND
VSUP1
GND
VSUP
+
VREFH
VSSA
VSUP2
LIN
C1
C2
D1
C3
C4
C5
L1
V1
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