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參數(shù)資料
| 型號： | 20-101-0357 |
| 廠商： | Rabbit Semiconductor |
| 文件頁數(shù)： | 19/94頁 |
| 文件大小： | 0K |
| 描述： | COMPUTER SINGLE-BOARD BL1810 |
| 標準包裝： | 1 |
| 系列： | Jackrabbit |
| 模塊/板類型： | 單板計算機模塊 |
| 適用于相關(guān)產(chǎn)品： | BL1810 |
| 產(chǎn)品目錄頁面： | 618 (CN2011-ZH PDF) |
| 其它名稱： | 316-1080 |
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22
Jackrabbit (BL1800)
There is a 10 k
resistor, R31, connected between Vcc and AD0. This resistor should pro-
vide an appropriate voltage divider bias for a variety of common thermistors so that they
can be connected directly between AD0 and ground. The A/D converter load is the 10 k
resistor connected to Vcc. Remove R31 if a smaller load is desired—this will lead to a
very high input impedance for the A/D converter.
The A/D converter has no reference voltage. There is a relative accuracy between mea-
surements, but no absolute accuracy. This is because Vcc can vary ±5%, the pulse-width
modulated outputs might not reach the full 0 V and 5 V rails out of the Rabbit 2000 micro-
processor, and the gain resistors used in the circuit have a 1% tolerance. For these reasons,
each Jackrabbit needs to be calibrated individually, with the constants held in software, to
be able to rely on an absolute accuracy. The Jackrabbit is sold without this calibration sup-
port.
The algorithm provided to perform the conversion does a successive approximation search
for the analog voltage. This takes an average of 150 ms, and a maximum of 165 ms, with a
14.7 MHz Jackrabbit.
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| 20-101-0358 | 功能描述:單板計算機 BL1820 RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲容量:2 GB (max) 存儲類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm |
| 20-101-0383 | 功能描述:模塊化系統(tǒng) - SOM RCM2020 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 |
| 20-101-0389 | 功能描述:子卡和OEM板 SR9200 16IN/8OUT RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
| 20-101-0390 | 功能描述:子卡和OEM板 SR9210 8 in/ 16 out RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
| 20-101-0391 | 功能描述:子卡和OEM板 SR9220 DIG I/O 8IN 8OUT RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
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