Can ADN4604 do single ended 75Ohm input and output?

Question The ADN4604 device looks like it can be configured in single ended mode. Can it do single ended 75Ohm input and output? Answer The ADN4604 has internal 50-ohm termination single-ended resistors and is not ideally suited to interface to 75-ohm transmission interfaces. However if the application is for SDI video: SDI uses 75ohm single-ended Coaxial Cables. In a typical application an SDI cable equalizer is used to equalize the cable as well as convert from 75-ohm single-ended to 100 ohm differential signalling, which is optimal for the crosspoint switch.

unused inputs or outputs?

Question What should I do with unused inputs or outputs? Answer In general, the high-speed serial inputs and outputs have integrated termination resistors to termination supply voltages. If any of these pins are unused, they can be left floating. Unused input control pins should be pulled up or down as recommended in the corresponding product datasheet. Unused output control pins such as interrupts can be left floating unless otherwise required in the product datasheet.

Does changing the crosspoint connectivity affect the state of previously configured connections?

Question Does changing the crosspoint connectivity affect the state of previously configured connections? Answer No. Each output can receive data from any input regardless of the connection states of other outputs. If the connectivity of a specific outputs changes, other outputs' connection states will remain unchanged.

Can I connect one input to multiple outputs?

Question Can I connect one input to multiple outputs? Answer The digital crosspoint switch products are non-blocking which means that any output can receive data from any input regardless of the connection states of other outputs.

Ac coupling Vs Dc coupling

Question When should I use ac-coupling vs. dc-coupling on the high-speed serial lanes? Answer Ac-coupling isolated the dc current between a transmitting Tx device and a receiving Rx device. This is useful for dc level translation, hot-swap protection and to prevent dc current flowing between different supply domains such as in card-to-card or chassis-to-chassis connections. Ac-coupling has the disadvantage of a setting a low frequency cutoff thereby requiring that the serial data be scrambled or encoded such that it has a equal number of zeroes and ones on average and a constrained number of consecutive identical digits (CIDs).

What data rates protocols are supported?

Question What data rates protocols are supported? Answer The digital crosspoint switch products are asynchronous and protocol agnostic and therefore can support almost any physical layer protocol assuming the data is binary formatted (NRZ or RZ) and data rate is within the maximum operating data rate listed in the datasheet.

What data rates or range of data rates are supported?

Question What data rates or range of data rates are supported? Answer The digital crosspoint switch products are asynchronous and protocol agnostic and therefore support any data rate independently per lane up to the maximum rated data rate listed in the product datasheet