參數(shù)資料
型號: 101-0673
廠商: Rabbit Semiconductor
文件頁數(shù): 120/136頁
文件大?。?/td> 0K
描述: MODULE RABBITCORE RCM3610
標準包裝: 1
系列: RabbitCore®
模塊/板類型: MPU 核心模塊
適用于相關產(chǎn)品: RCM3610
其它名稱: 316-1033
78
RabbitCore RCM3600
B.4.2.3 Other A/D Converter Features
The A/D converter’s internal reference voltage is software-configurable for 1.15 V, 2.048 V,
or 2.5 V using the #define AD_OSC_ENABLE macro in the Dynamic C RCM36xx.LIB
library. The scaling circuitry on the Prototyping Board and the sample programs are
optimized for an internal reference voltage of 2.048 V. This internal reference voltage is
available on pin 3 of shrouded header J8 as VREF, and allows you to convert analog input
voltages that are negative with respect to analog ground.
NOTE: The amplifier inside the A/D converter’s internal voltage reference circuit has a
very limited output-current capability. The internal buffer can source up to 20 mA and
sink only up to 20 A. A separate buffer amplifier at U7 supplies the load current.
The A/D converter’s CONVERT pin is available on pin 2 of shrouded header J8, and can
be used as a hardware means of forcing the A/D converter to start a conversion cycle. The
CONVERT signal is an edge-triggered event and has a hold time of two CCLK periods for
debounce.
A conversion is started by an active (rising) edge on the CONVERT pin. The CONVERT
pin must stay low for at least two CCLK periods before going high for at least two CCLK
periods. Figure B-7 shows the timing of a conversion start. The double falling arrow on
CCLK indicates the actual start of the conversion cycle.
Figure B-7. Timing Diagram for Conversion Start Using CONVERT Pin
CCLK
BUSY
CONV
Conversion starts
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相關代理商/技術參數(shù)
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101-0674 功能描述:模塊化系統(tǒng) - SOM RCM3700 RABBITCORE RoHS:否 制造商:Digi International 外觀尺寸:ConnectCore 9P 處理器類型:ARM926EJ-S 頻率:150 MHz 存儲容量:8 MB, 16 MB 存儲類型:NOR Flash, SDRAM 接口類型:I2C, SPI, UART 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in
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101-0678 功能描述:開發(fā)板和工具包 - 其他處理器 RCM3600 DEV KIT RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: