Dear Reader,
I have used Sipex IC SP3232EET on my board for 3.3V controller. Instead of 0.1uF, I used 1uF tantalum capacitors. I faced a problem of PC not detecting the device sometimes. Then I monitoeed voltage at pin 2 and 6, i.e. +10V and -10V. Some times I get, it but the moment I connect PC serial port, it drops to 1V. I tried using different PC but same observation. Sometimes it gives proper voltage and serial communication works fine. Now when I checked the datasheet, I thought of using 0.1uF capacitor. So I replaced 1uF tantalum capacitors by 0.1uF chip capacitors. But no difference. Did my IC go bad?
Thanks in advance.
I have used Sipex IC SP3232EET on my board for 3.3V controller. Instead of 0.1uF, I used 1uF tantalum capacitors. I faced a problem of PC not detecting the device sometimes. Then I monitoeed voltage at pin 2 and 6, i.e. +10V and -10V. Some times I get, it but the moment I connect PC serial port, it drops to 1V. I tried using different PC but same observation. Sometimes it gives proper voltage and serial communication works fine. Now when I checked the datasheet, I thought of using 0.1uF capacitor. So I replaced 1uF tantalum capacitors by 0.1uF chip capacitors. But no difference. Did my IC go bad?
Thanks in advance.