参数资料
型号: 101-1155
厂商: Rabbit Semiconductor
文件页数: 21/134页
文件大小: 0K
描述: KIT DEVELOPMENT USA RCM4200
标准包装: 1
系列: RabbitCore 4000
类型: MPU 核心模块
适用于相关产品: RCM4200
所含物品: RabbitCore 模块、开发板、交流适配器、缆线和 Dynamic C? 光盘
其它名称: 316-1126
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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参数描述
101-1156 功能描述:开发板和工具包 - 其他处理器 RCM4200 Dev Kit (Intl) RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压:
101-115-6110-EV 功能描述:编码器 1mA PUSH 220gf 12 PULSE 24 DETENTS RoHS:否 制造商:Avago Technologies 产品:Optical Encoders 类型:Absolute 每转脉冲: 制动器数量: 通道数量:2 安装风格:Through Hole 端接类型:Solder Pin 输出: 轴类型: 带开关: 电源电压:5 V 工作温度范围:- 40 C to + 115 C
101-115-6191-EV 功能描述:编码器 1mA PUSH 220gf 12 PULSE 24 DETENTS RoHS:否 制造商:Avago Technologies 产品:Optical Encoders 类型:Absolute 每转脉冲: 制动器数量: 通道数量:2 安装风格:Through Hole 端接类型:Solder Pin 输出: 轴类型: 带开关: 电源电压:5 V 工作温度范围:- 40 C to + 115 C
101-1157 功能描述:开发板和工具包 - 其他处理器 RCM4100 Analog Dev Kit (US) RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压:
101-1158 功能描述:开发板和工具包 - 其他处理器 RCM4100 Analog Dev Kit (Intl) RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压: