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AS5130
Datasheet - Detailed Description
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
VDD
VSS
micro
controller
AS5130
100n
VSS
+5V
VDD
CS
VDD
DCLK
DIO
PROG
VSS
AS5130
C1
I/O
Output
Output
+
10礔 100n
8.0 - 8.5V
Note:   For further details on OTP programming, please refer to OTP Programming (page 17).
VDD
VSS
micro
controller
100n
VSS
+5V
VDD
PWM
AS5130
VDD
VSS
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