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AS5134

Datasheet - Detailed Descr i pti on

7.6 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. Pins that are not shown may be left open.

Figure 8. Data Transmission with Pulse Width Modulated (PWM) Output

The PWM signal will be generated from the actual stored angle information. The zero-angle corrected value is buffered and fixed until the next

PWM-sequence is started. To ease the filtering of the PWM signal, a minimum pulse width is implemented in the protocol.

+5V

VDD

AS5134

Micro Controller

VDD

PWM

VSS

VSS

CS

100nF

VSS

VDD

Input

C2

Init

Zero degree

Angle Position

8 clocks

359 clocks

exit

8 clocks

Lock