參數(shù)資料
型號： 20-101-1138
廠商： Rabbit Semiconductor
文件頁數(shù)： 15/124頁
文件大?。?/td> 0K
描述： RCM4300 RABBITCORE
產(chǎn)品培訓模塊： WiFi Authentication
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： RCM4300
其它名稱： 316-1141
RabbitCore RCM4300 User’s Manual
111
Many other possible ranges are possible by physically changing the resistor values that
make up the attenuator circuit.
NOTE: Analog input LN7_IN does not have the 10 k
resistor installed, and so no
resistor attenuator is available, limiting its maximum input voltage to 2 V. This input is
intended to be used for a thermistor that you may install at header location JP25.
It is also possible to read a negative voltage on LN0_IN–LN5_IN by moving the 0
jumper (see Figure B-6) on header JP23 or JP24 associated with the A/D converter input
from analog ground to the reference voltage generated and buffered by the A/D converter.
Adjacent input channels are paired; moving the jumper on JP 23 changes both of the
paired channels (LN4_IN–LN5_IN), and moving the jumper on JP24 changes LN0_IN–
LN1_IN and LN2_IN–LN3_IN. At the present time Rabbit Semiconductor does not offer
the software drivers to work with single-ended negative voltages, but the differential mode
described below may be used to measure negative voltages.
Differential measurements require two channels. As the name differential implies, the dif-
ference in voltage between the two adjacent channels is measured rather than the differ-
ence between the input and analog ground. Voltage measurements taken in differential
mode have a resolution of 12 bits, with the 12th bit indicating whether the difference is
positive or negative.
The A/D converter chip can only accept positive voltages, as explained in Section 4.4. Both
differential inputs must be referenced to analog ground, and both inputs must be positive
with respect to analog ground. Table B-4 provides the differential voltage ranges for this
setup.
Table B-4. Differential Voltage Ranges
Min. Differential
Voltage
(V)
Max. Differential
Voltage (with
prescaler)
(V)
Gain
Multiplier
A/D Converter
Actual Gain
Resolution
(mV )
0
±22.528
×1
1
11
0
±11.264
×2
1.8
5.5
0
±5.632
×4
3.6
2.75
0
±4.506
×5
4.5
2.20
0
±2.816
×8
7.2
1.375
0
±2.253
×10
9.0
1.100
0
±1.408
×16
14.4
0.688
0
±1.126
×20
18
0.550
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相關代理商/技術參數(shù)
參數(shù)描述
20-101-1139 功能描述:模塊化系統(tǒng) - SOM RCM4310 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
20-101-1140 功能描述:WiFi/802.11模塊 RCM4400W CORE MODULE Wi-Fi/802.11 RoHS:否 制造商:Taiyo Yuden 支持協(xié)議:802.11 b/g/n 頻帶: 數(shù)據(jù)速率:150 Mbps 接口類型:SDIO 傳輸功率（最大）: 天線連接器類型: 工作電源電壓:3.4 V to 5.5 V 傳輸供電電流: 接收供電電流: 最大工作溫度:+ 80 C 尺寸:35 mm x 15 mm x 2.9 mm
20-101-1153 功能描述:子卡和OEM板 RCM4300 Proto board RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
20-101-1154 功能描述:模塊化系統(tǒng) - SOM RCM4120 RabbitCore- Module 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
20-101-1170 功能描述:Zigbee/802.15.4模塊 RCM4510W CORE MODULE RoHS:否 制造商:Digi International 頻帶:902 MHz to 928 MHz 視線范圍: 數(shù)據(jù)速率: 靈敏度: 工作電源電壓:2.4 V to 3.6 V 傳輸供電電流:215 mA 接收供電電流:26 mA 輸出功率:250 mW 天線連接器類型:Wire 最大工作溫度:+ 85 C 尺寸:32.94 mm x 22 mm x 2.03 mm
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