Section 38 A/D Converter
Rev. 1.00 Oct. 01, 2007 Page 1671 of 1956
REJ09B0256-0100
38.7 Usage
Notes
When using the A/D converter, note the points listed below.
38.7.1
Setting Analog Input Voltage
1. Analog input voltage range
During A/D conversion, the voltages input to the analog input pins ANn should be in the range
AVss
≤
ANn
≤
AVcc (n = 0 to 3).
2. AVcc and AVss input voltages
The AVcc and AVss input voltages should be as follows: AVcc = 3.3 V ± 0.3 V and AVss =
Vss. (AVcc = Analog power supply, AVss = Analog ground, Vss = Internal digital power
supply)
38.7.2
Processing of Analog Input Pins
To prevent damage from abnormal voltage such as voltage surges at the analog input pins (AN0 to
AN3), connect a protection circuit like the one shown in figure 38.6. The circuit shown also
includes a CR filter to suppress noise. This circuit is shown as an example; the circuit constants
should be determined according to actual application conditions.
AVcc
AN0 to AN3
AVss
This LSI
100
Ω
0.1
µ
F
0.01
µ
F
10
µ
F
Note:
*
Bypass capacitor connected to AVcc
*
Figure 38.6 Example of Analog Input Pin Protection Circuit
Summary of Contents for SH7763
Page 2: ...Rev 1 00 Oct 01 2007 Page ii of lxvi ...
Page 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Page 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Page 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Page 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Page 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Page 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Page 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Page 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Page 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Page 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Page 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Page 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Page 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Page 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Page 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Page 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Page 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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Page 2026: ...SH7763 Hardware Manual ...