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Part Number: TSW14J57EVM
could you tell me how to change the input level of J13? I want to input 3.3V level to TRIG_IN.
For 3.3V level input signals, on switch SW7, turn on switch 4 and turn off the other three switches.
Switch SW7 controls the voltage used by the FPGA bank that the TRIG signals are connected to. The available voltages are as follows:
SW1 ON, SW2, SW3, SW4 OFF = 1.4V
SW2 ON, SW1, SW3, SW4 OFF = 1.8V (default)
SW3 ON, SW1, SW2, SW4 OFF = 2.5V
SW4 ON, SW1, SW2, SW3 OFF = 3.0V
Only one switch should be ON. Other values can be obtained but the user would need to swap out a resistor. See sheet 31 of the attached schematic. Care must be taken to not create a voltage that is outside the specified allowable values of the FPGA.The FPGA maximum specified input voltage for VCCIO is 3.15V
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In reply to jim s:
Hello Jim thank you. so you cannot use the 3.3V IO into this EVM?
Do i need to set the VCCIO of trigger source below 3.0V, or level shifting? Ito
In reply to Takuma Ito:
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