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Renesas Electronics America - Knowledgebase

What is the method for calculating resistor value?

Latest Updated:08/01/2005


For the UPD7226 LCd driver, I want to set the oscillation frequency to 80 kHz with an external resistor, but what is the method for calculating that resistor value?


There is no calculation method, but if the power supply is 5 V and the external resistor is set to 300 kΩ, the oscillation frequency can be set to approximately 80 kHz.
Suitable Products
CMOS Operational Amplifiers
Bipolar Operational Amplifiers