Part Number: PCA9306
Tool/software:
Hi Team,
There is a question for PCA9306, on datasheet recommendation, VREF1 supports 1.2 V to VREF2 - 0.6 V, and VREF2 must be between VREF1 + 0.6 V to 5.5 V. If VCC1 = VREF1 = 1.26V. VREF2 = 1.26V + 0.6V = 1.86V.
However, on customer side board, they found that PCA9306 can support 1.2V(Vref1) to 0.9V(Vref2) level transmission. Could you please explain why the voltage on Vref2 can be lower than Vref1?
please refer to the following
