LF_LF
Member level 1
HI, i need some technical help on the DE2 board.
I am using DE2 board for my project and i need to interchange signals(SPI) to an ADC. The ADC is 5V for logic high but the max output signal for DE2 board is only 3.3V.
I have tried to use the level/voltage translator(SN7417/SN7407) but it seen like not applicable for my design as i am using 1MHz sample frequency. The SN7417 can convert from 3.3V to 5V till frequency around 5kHz only.
I want to ask those have done the implementation before which ic or translator you are using for high frequency signal like my case?
Due to the sample frequency of the ADC, it need high frequency for it, around 1MHz or 500kHz. Therefore, i need an intermediate for the voltage conversion.
Even for the 5V to 3.3V conversion, i used voltage divider but it also limited to 200kHz. Those more than that will be distorted or gone.Thus, i really need an ic for this bidirectional transmission.
I am very appreciated your help. Thank you in advanced.
I am using DE2 board for my project and i need to interchange signals(SPI) to an ADC. The ADC is 5V for logic high but the max output signal for DE2 board is only 3.3V.
I have tried to use the level/voltage translator(SN7417/SN7407) but it seen like not applicable for my design as i am using 1MHz sample frequency. The SN7417 can convert from 3.3V to 5V till frequency around 5kHz only.
I want to ask those have done the implementation before which ic or translator you are using for high frequency signal like my case?
Due to the sample frequency of the ADC, it need high frequency for it, around 1MHz or 500kHz. Therefore, i need an intermediate for the voltage conversion.
Even for the 5V to 3.3V conversion, i used voltage divider but it also limited to 200kHz. Those more than that will be distorted or gone.Thus, i really need an ic for this bidirectional transmission.
I am very appreciated your help. Thank you in advanced.