refdes refdes value device A1 A1 unknown model Cm Cm 20p CAPACITOR Cp Cp 20p CAPACITOR Rlp Rlp 1meg RESISTOR Rlm Rlm 500k RESISTOR Vdd Vdd DC 3.3V VOLTAGE_SOURCE V1 V1 pulse 3.3 0 1u 10p 10p 1.25u 2.5u vpulse Rt Rt 1k RESISTOR Rb Rb 5.6k RESISTOR M1 M1 unknown PMOS_TRANSISTOR X1 X1 unknown LVD