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AS5134 Datasheet(PDF) 12 Page - ams AG |
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AS5134 Datasheet(HTML) 12 Page - ams AG |
12 / 29 page ![]() www.austriamicrosystems.com Revision 1.6 12 - 29 AS5134 Data Sheet - D e ta i l e d D e s c r i p t i o n 1-Wire PWM Connection This configuration uses the least number of wires: only one line (PWM) is used for data, leaving the total number of connection to three, including the supply lines. This type of configuration is especially useful for remote sensors. Ultra Low Power Mode is not possible in this configuration, as there is no bi-directional data transmission. If the AS5134 angular data is invalid, the PWM output will remain at low state. Pins that are not shown may be left open. Figure 7. Data Transmission with Pulse Width Modulated (PWM) Output Analog Output This configuration is similar to the PWM connection (only three lines including supply are required). With the addition of a lowpass filter at the PWM output, this configuration produces an analog voltage that is proportional to the angle. This filter can be either passive (as shown in Figure 8) or active. The lower the bandwidth of the filter, the less ripple of the analog output can be achieved. If the AS5134 angular data is invalid, the PWM output will remain at low state and thus the analog output will be 0V. Pins that are not shown may be left open. Read D20 D19 D18 D17 D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 00 0 0 0 C2 lock AGC Angle D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 1 2 3 4 5 6 7 8 20 21 D15 D14 D1 D0 timeout tTO DCLK DI +5V VDD AS5134 Micro Controller VDD PWM VSS VSS CS 100n VSS VDD Input C2 |
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