PTC04-DB-HALL06

Daughter Board for Melexis PTC devices

REVISION 7 – 20 December 2021

Datasheet

Page 21 of 23

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Daughter Board for Melexis PTC devices

2.5.2. J2, J3, J4 and J5 – select pull-up

These jumpers are used to select the pull-up resistor for the outputs of die A and B:



JP2: Pull-up selection for OUT1 die A



JP3: Pull-up selection for OUT2 die A



JP4: Pull-up selection for OUT1 die B



JP5: Pull-up selection for OUT2 die B

Place the jumper between:



Pin 1 and 2  select 5K6 Pull-up



Pin 3 and 2  select 10K Pull-up

The selection between VDD and Vbat is done by a relay on software level.

When Vbat is set to 0V one can select a pull-down

2.5.3. CON3 and CON21 – configure MUPET circuit

The MUPET circuit on the daughter board is used to convert the clock and data of the UART to a single wire

protocol called MUPET.

CON3 and CON21 are used to configure the resistors of the MUPET circuit in function of the output

resistance on the sensor/module.



Pin 1 and 2  select 100Ω



Pin 3 and 4  select digital potentiometer