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參數(shù)資料
| 型號： | SAB-C167CS-L33M |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | 16-Bit Single-Chip Microcontroller |
| 中文描述： | 16位單片機 |
| 文件頁數(shù)： | 65/80頁 |
| 文件大小： | 1151K |
| 代理商： | SAB-C167CS-L33M |
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C167CS-4R
C167CS-L
Data Sheet
61
V2.0, 2000-06
Sample time and conversion time of the C167CS’s A/D Converter are programmable.
Table 13
should be used to calculate the above timings.
The limit values for
f
BC
must not be exceeded when selecting ADCTC.
Converter Timing Example:
Assumptions:
Basic clock
Sample time
Conversion time
f
CPU
f
BC
t
S
t
C
= 25 MHz (i.e.
t
CPU
= 40 ns), ADCTC = ‘00’, ADSTC = ‘00’.
=
f
CPU
/4 = 6.25 MHz, i.e.
t
BC
= 160 ns.
=
t
BC
×
8 = 1280 ns.
=
t
S
+ 40
t
BC
+ 2
t
CPU
= (1280 + 6400 + 80) ns = 7.8
μ
s.
6)
During the conversion the ADC’s capacitance must be repeatedly charged or discharged. The internal
resistance of the reference voltage source must allow the capacitance to reach its respective voltage level
within each conversion step. The maximum internal resistance results from the programmed conversion
timing.
7)
Not 100% tested, guaranteed by design and characterization.
8)
During the sample time the input capacitance
C
AIN
can be charged/discharged by the external source. The
internal resistance of the analog source must allow the capacitance to reach its final voltage level within
t
S
.
After the end of the sample time
t
S
, changes of the analog input voltage have no effect on the conversion result.
Values for the sample time
t
S
depend on programming and can be taken from
Table 13
.
Table 13
ADCON.15|14
(ADCTC)
00
01
10
11
A/D Converter Computation Table
A/D Converter
Basic Clock
f
BC
f
CPU
/4
f
CPU
/2
f
CPU
/16
f
CPU
/8
ADCON.13|12
(ADSTC)
00
01
10
11
Sample time
t
S
t
BC
×
8
t
BC
×
16
t
BC
×
32
t
BC
×
64
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SABC167CSL40M | 制造商:Infineon Technologies AG 功能描述: |
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| SAB-C167CS-L40M CA+ | 功能描述:16位微控制器 - MCU 16BIT SNGL CHIP 5V 40MHz ROM less RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| SABC167CSL40M CA+ TR | 制造商:Infineon Technologies AG 功能描述: |
| SABC167CSL40MCA+ | 制造商:Infineon Technologies AG 功能描述: |
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