AD8156: Can I drive AD8156 from LVDS and LVCMOS sources?

Question Can I drive the AD8156 from an LVDS or LVCMOS sources (eg, VCXO output)? Answer The AD8156 can interface to LVDS and LVCMOS sources. Both sources should be AC-coupled to the AD8156. If DC-coupling is required please contact ADI technical support as some non-ideal adjustments would need to be made to the AD8156 in-order to ensure input common-mode compliance.

AD8156: multiplexer and OOB feature

Question one customer would like to use AD8156 as a N:1 multiplexer. Since the datasheet said that each output can be disabled. He would like to know whether the can connect the outputs together and only enable one output channel at one time to implement the multiplexer function. Or do we have multiplexer for him to select? He needs 6Gbps. Answer In general, it is not possible to connect multiple outputs together as drawn at these datarates. That being said, a single AD8156 can be configured as a 4:1 multiplexer. Another device to consider is the AD8158. http://www.analog.com/static/imported-files/data_sheets/AD8158.pdf More importantly, both the AD8156 and AD8158 do not support the OOB signaling feature. If this feature is required then unfortunately we cannot support it.