Hi team,
The customer is using LM4890. After the input signal is input to the LM4890 device, the customer has to wait for 2~3 seconds, then the LM4890 device
can output the signal. The attach is his schematic and the layout. VDD is 5.2V. The capacitance that is connected to the bypass pin is 22uF/16V.
C48 is 0.1uF. C45 is 22uF/16V.
Would you provide some solutions?
Best Wishes,
Mickey Zhang
Asia Customer Support Center
Texas Instruments