Resistor Calculator for the DS3906
The DS3906 contains three variable resistors that have a pseudolog response. External resistors can be used in parallel with the DS3906’s resistors to achieve a linear response having small step sizes. This application note, along with the associated spreadsheet, demonstrates the ability to achieve a variable resistance with an effective linear response when used in parallel with external resistors. The spreadsheet also allows users to experiment with different values of external resistors to suit their particular application.
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