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| 型號： | Q67121-C923 |
| 廠商： | SIEMENS AG |
| 英文描述： | C16x-Family of High-Performance CMOS 16-Bit Microcontrollers |
| 中文描述： | C16x的高家庭，高性能CMOS 16位微控制器 |
| 文件頁數(shù)： | 43/69頁 |
| 文件大?。?/td> | 1124K |
| 代理商： | Q67121-C923 |
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Semiconductor Group
43
1997-07-01
C515C
10-Bit A/D Converter
The C515C includes a high performance / high speed 10-bit A/D-Converter (ADC) with 8 analog
input channels. It operates with a successive approximation technique and uses self calibration
mechanisms for reduction and compensation of offset and linearity errors. The A/D converter
provides the following features:
– 8 multiplexed input channels (port 6), which can also be used as digital inputs
– 10-bit resolution
– Single or continuous conversion mode
– Internal or external start-of-conversion trigger capability
– Interrupt request generation after each conversion
– Using successive approximation conversion technique via a capacitor array
– Built-in hidden calibration of offset and linearity errors
The main functional blocks of the A/D converter are shown in
figure 19
.
The A/D converter uses basically two clock signals for operation : the input clock f
IN
(=1/t
IN
) and the
conversion clock f
ADC
(=1/t
ADC
). These clock signals are derived from the C515C system clock
f
OSC
which is applied at the XTAL pins. The input clock f
IN
is equal to f
OSC
. The conversion clock
is limited to a maximum frequency of 2 MHz and therefore must be adapted to f
OSC
by
programming the conversion clock prescaler. The table in
figure 18
shows the prescaler ratios and
the resulting A/D conversion times which must be selected for typical system clock rates.
Figure 18
A/D Converter Clock Selection
MCU System Clock
Rate (f
OSC
)
2 MHz
ADCL
Conversion Clock
f
ADC
[MHz]
.5
0
4 MHz
0
1
6 MHz
0
1.5
8 MHz
0
2
10 MHz
1
1.25
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PDF描述 |
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| Q67121-C942 | 16-Bit CMOS Single-Chip Microcontroller |
| Q67121-C946 | 16-Bit CMOS Single-Chip Microcontroller |
| Q67121-C967 | 16-Bit CMOS Single-Chip Microcontroller |
| Q67126-C2001 | 8-Bit CMOS Microcontroller |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| Q67121-C942 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit CMOS Single-Chip Microcontroller |
| Q67121-C946 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit CMOS Single-Chip Microcontroller |
| Q67121-C967 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit CMOS Single-Chip Microcontroller |
| Q67126-C2001 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| Q67126-C2042 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
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