Hi,
I am using the LSF010XEVM-001 to do a digital signal level translation from 3.3V to 1.2V. We do it exactly asthe data sheet.
For example, for LSF0101, the P1.1 is connected to 3.3V, P1.2 (VrefA) is connect to 1.2V, P1.3(VAPU) is connected to 1.2V, P2.1 is connected to GND, P2.2(VrefB) is connected to 3.3V, P2.3 (VBPU) is connected to 3.3 V.
However, in this configuration, we notice the VrefA will be driven to 1.7V and there are large current (40mA) in VrefA and VrefB.
The A1 signal is also not correct (about 2V when B1 is 3.3V).
All the input signals are generated by signal generator (HP-E3631A).
I don't know why it doesn't work and can anybody help me to fix it?
Thanks a lot!