Nice to meet all of you 🙂
Recently, I am trying to work on DIR1703 and would like to use pulse transformer to work as the isolation for spdif RCA signal. However, I found that I cannot directly use pulse transfomer without cap. DIR1703 eats only TTL signals. So I designed to use ADM1458. The below part of the picture was the circuit I hoped to use for DIR1703. The upper part is used for my NEC MultiSpin 6xi CDROM driver to convert TTL back to SPDIF RCA by ADM1458 also.
Is the above circuit correct?
Thanks a lot for help!!!😉
I also wanna to know if the 75Ohm resistor would cause short circuit. Yet, I used it just for maintaining the impedence. Is this necessary?
Sorry for my poor english, hope all would understand what I am talking about
. Thank you!
An externally hosted image should be here but it was not working when we last tested it.
Recently, I am trying to work on DIR1703 and would like to use pulse transformer to work as the isolation for spdif RCA signal. However, I found that I cannot directly use pulse transfomer without cap. DIR1703 eats only TTL signals. So I designed to use ADM1458. The below part of the picture was the circuit I hoped to use for DIR1703. The upper part is used for my NEC MultiSpin 6xi CDROM driver to convert TTL back to SPDIF RCA by ADM1458 also.
Is the above circuit correct?

I also wanna to know if the 75Ohm resistor would cause short circuit. Yet, I used it just for maintaining the impedence. Is this necessary?
Sorry for my poor english, hope all would understand what I am talking about
