參數(shù)資料
型號： C8051F300DK
廠商： Silicon Laboratories Inc
文件頁數(shù)： 115/178頁
文件大?。?/td> 0K
描述： DEV KIT F300/301/302/303/304/305
標準包裝： 1
類型： MCU
適用于相關(guān)產(chǎn)品： Silicon Laboratories C8051 F300/001/002
所含物品： 評估板，電源，USB 線纜，適配器和文檔
產(chǎn)品目錄頁面： 626 (CN2011-ZH PDF)
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其它名稱： 336-1246
Rev. 2.9
41
C8051F300/1/2/3/4/5
5.3.3. Settling Time Requirements
When the ADC0 input configuration is changed (i.e., a different AMUX0 or PGA selection is made), a mini-
mum tracking time is required before an accurate conversion can be performed. This tracking time is deter-
mined by the AMUX0 resistance, the ADC0 sampling capacitance, any external source resistance, and the
accuracy required for the conversion. Note that in low-power tracking mode, three SAR clocks are used for
tracking at the start of every conversion. For most applications, these three SAR clocks will meet the mini-
mum tracking time requirements.
Figure 5.5 shows the equivalent ADC0 input circuits for both Differential and Single-ended modes. Notice
that the equivalent time constant for both input circuits is the same. The required ADC0 settling time for a
given settling accuracy (SA) may be approximated by Equation 5.1. When measuring the Temperature
Sensor output or VDD with respect to GND, RTOTAL reduces to RMUX. See Table 5.1 for ADC0 minimum
settling time (track/hold time) requirements.
t
2
n
SA
-------
R
TOTALCSAMPLE
ln
=
Equation 5.1. ADC0 Settling Time Requirements
Where:
SA is the settling accuracy, given as a fraction of an LSB (for example, 0.25 to settle within 1/4 LSB)
t is the required settling time in seconds
RTOTAL is the sum of the AMUX0 resistance and any external source resistance.
n is the ADC resolution in bits (8).
R
MUX = 5k
RC
Input= RMUX * CSAMPLE
R
MUX = 5k
C
SAMPLE = 5pF
C
SAMPLE = 5pF
MUX Select
Differential Mode
P0.x
P0.y
R
MUX = 5k
C
SAMPLE = 5pF
RC
Input= RMUX * CSAMPLE
MUX Select
Single-Ended Mode
P0.x
Note: When the PGA gain is set to 0.5, C
SAMPLE = 3pF
Figure 5.5. ADC0 Equivalent Input Circuits
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參數(shù)描述
C8051F300DK-A 功能描述:DEV KIT FOR F300/301/302/304/305 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F300DK-B 功能描述:DEV KIT FOR F300/301/302/304/305 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F300DK-E 功能描述:DEV KIT FOR F300/301/302/304/305 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F300DK-G 功能描述:8位微控制器 -MCU MCU DEVELOPMENT KIT W/ GLOBAL POWER SPLY RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
C8051F300DK-H 功能描述:DEV KIT FOR F300/301/302/304/305 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
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