R0K572011S000BE Renesas Electronics America, R0K572011S000BE Datasheet - Page 928

• Manufacturer Part Number: R0K572011S000BE
• Description: KIT STARTER FOR SH7201
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K572011S000BE

• Contents: CPU Board, LCD Display Module, E8 Emulator, Cable, QuickStart Guide and CD-ROM
• For Use With/related Products: SH7201
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Section 20 A/D Converter (ADC)
20.7.4
To prevent damage from voltage surges at the analog input pins (AN0 to AN7), connect an input
protection circuit like the one shown in figure 20.8. The circuit shown also includes a CR filter to
suppress noise. This circuit is shown as an example; the circuit constants should be selected
according to actual application conditions.
Figure 20.9 shows an equivalent circuit diagram of the analog input ports and table 20.7 lists the
analog input pin specifications.
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Processing of Analog Input Pins
*
1
*
Figure 20.8 Example of Analog Input Protection Circuit
1
AN0 to AN7
Note: Values are reference values.
Figure 20.9 Analog Input Pin Equivalent Circuit
*
2
R
in
0.1 μF
3 kΩ
100 Ω
20 pF
AVcc
AVref
AN0 to AN7
AVss
Notes: Values are reference values.
1.
2. R
in
10 μF
: Input impedance
To A/D converter
This LSI
0.01 μF
R01UH0026EJ0300 Rev. 3.00
SH7201 Group
Sep 24, 2010