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sn74avc4t774 low-level input voltage

Soroush Heidari
Prodigy 10 points

Other Parts Discussed in Thread: SN74AVC4T774, CC2564MODA

Hi,

I am designing an energy harvesting system with the Bluetooth connectivity. In our design, the thermoelectric harvester is connected to LTC3108 regulator to boost up the harvested voltage. I used the sn74avc4t774 level shifter for connecting the CC2564moda Bluetooth module to MCU and I am trying to use a voltage divider circuit to provide low-level input voltage for level shifter (1.8 V). So, I need to know the power supply input impedance to pick the best resistances for the voltage divider. I'd be grateful if you provide the required data or any other suggestion to convert the 2.1 V to 1.8 V  with minimum power loss.

Thank you in advance for your help!