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AS5043ASSU 参数 Datasheet PDF下载

AS5043ASSU图片预览
型号: AS5043ASSU
PDF下载: 下载PDF文件 查看货源
内容描述: 可编程360磁性角度编码器与绝对SSI和模拟输出 [Programmable 360 Magnetic Angle Encoder with Absolute SSI and Analog Outputs]
分类和应用: 编码器
文件页数/大小: 36 页 / 720 K
品牌: AMSCO [ AMS(艾迈斯) ]
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AS5043  
Data Sheet – 3.3V / 5V Operation  
7 3.3V / 5V Operation  
The AS5043 operates either at 3.3V ±10% or at 5V ±10%. This is made possible by an internal 3.3V Low-Dropout (LDO)  
Voltage regulator. The core supply voltage is always taken from the LDO output, as the internal blocks are always  
operating at 3.3V.  
For 3.3V operation, the LDO must be bypassed by connecting VDD3V3 with VDD5V (see Figure 4 ).  
For 5V operation, the 5V supply is connected to pin VDD5V, while VDD3V3 (LDO output) must be buffered by a 1...10µF  
capacitor, which should be placed close to the supply pin.  
The VDD3V3 output is intended for internal use only. It should not be loaded with an external load.  
The voltage levels of the digital interface I/O’s correspond to the voltage at pin VDD5V, as the I/O buffers are supplied  
from this pin (see Figure 4).  
Figure 4: Connections for 5V / 3.3V Supply Voltages  
A buffer capacitor of 100nF is recommended in both cases close to pin VDD5V. Note that pin VDD3V3 must always be  
buffered by a capacitor. It must not be left floating, as this may cause an instable internal 3.3V supply voltage which may  
lead to larger than normal jitter of the measured angle.  
www.austriamicrosystems.com  
Revision 1.80  
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