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AS5045ASST Datasheet(PDF) 10 Page - ams AG |
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AS5045ASST Datasheet(HTML) 10 Page - ams AG |
10 / 33 page AS5045 Data Sheet www.austriamicrosystems.com Revision 1.7 10 – 33 Figure 3. Integral and Differential Non-linearity (example) 180° 360 ° 0 ° 0 2048 4095 α α12bit code 0 1 2 0.09° INL Ideal curve Actual curve TN 2048 4095 DNL+1LSB [degrees] Integral Non-Linearity (INL) is the maximum deviation between actual position and indicated position. Differential Non-Linearity (DNL) is the maximum deviation of the step length from one position to the next. Transition Noise (TN) is the repeatability of an indicated position 6.7 Timing Characteristics 6.7.1 Synchronous Serial Interface (SSI) (operating conditions: Tamb = -40 to +125°C, VDD5V = 3.0~3.6V (3V operation) VDD5V = 4.5~5.5V (5V operation) unless otherwise noted) Parameter Symbol Min Typ Max Unit Note Data output activated (logic high) t DO active 100 ns Time between falling edge of CSn and data output activated First data shifted to output register tCLK FE 500 ns Time between falling edge of CSn and first falling edge of CLK Start of data output T CLK / 2 500 ns Rising edge of CLK shifts out one bit at a time Data output valid t DO valid 357 375 394 ns Time between rising edge of CLK and data output valid Data output tristate t DO tristate 100 ns After the last bit DO changes back to “tristate” Pulse width of CSn t CSn 500 ns CSn = high; To initiate read-out of next angular position Read-out frequency fCLK >0 1 MHz Clock frequency to read out serial data |
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