The DS30BA101 states that is capable of receiving single ended inputs, yet all reference diagrams have differential inputs. We would like to use this chip in a couple locations which require single ended inputs (of 50Ω and 75Ω), however, I’m not certain as to which method I should use to match the input impedance expected by the chip.
- Should I treat the input pair as 100Ω differential (like DS30EA101), or each input as an independent 50Ω network?
- Is it better to terminate the unused input, or leave it floating?
Furthermore, we hope to use these for trace conversions of SMPTE 929/424 (3G & HD-SDI) signals, so any additional design suggestions for optimal operation in these bandwidths would be very helpful.
As always, your help and insight is much appreciated. Thank you.