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AS5130

Datasheet - Detailed Descr i pti on

7.1.2 Serial 3-Wire Connection (OTP Programming Option)

This mode provides with an option to configure the serial interface for programming the OTP register. Using a clock input (CLK), DIO (Data) in/

output and CS pin, it is possible to write and read out data from the OTP Register. The data transfer is done via the DIO channel. For

programming, the PROG pin must be connected to +8V. Analog readout for trimming verification is mandatory.

Figure 7. Serial Data Transmission in Continuous Readout Mode

7.1.3 1-Wire PWM Connection

If the line (PWM) is used as angle output, the total number of connections can be reduced to three, including the supply lines. This type of

configuration is especially useful for remote sensors. Low power mode is not possible in this configuration. If the AS5130 angular data is invalid,

the PWM output will remain at low state.

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

micro

controller

AS5130

100n

+5V

VDD

CS

DCLK

DIO

PROG

AS5130

C1

I/O

Output

Output

+

8.0 - 8.5V

Note:

For further details on OTP programming, please refer to OTP Programming (page 17).

micro

controller

100n

+5V

VDD

PWM

AS5130