SupportProducts FAQCan you suggest how I can omit HTPDN or LOCKN signal line?

UsageV-by-One HS
In V-by-One® HS, AC coupling (capacitive coupling) is used for the transmission from the transmitter (Tx) to the receiver (Rx) through capacitance.
The standard recommendation is that the capacitor for AC coupling be placed just next to the Tx device’s CML output pin, but placing it just next to the Rx device’s CML input pin is allowed as well.
Performing capacitive coupling on both Tx and Rx prevents the DC between Tx and Rx from being propagated to CML terminals on both sides.
By using this feature, the signals which are sufficiently slower than V-by-One®HS signal, e.g. LOCKN, HTPDN and the power supply, can be transmitted through the V-by-One®HS signal line.
However, as the load on the V-by-One®HS signal line becomes larger with this method, the waveform of V-by-One® HS signal will be affected.
If you consider adopting this method, evaluate it sufficiently in advance under your usage environment before using it.


For details, refer to the application notes for each V-by-One®HS product (reference schematics) and here.
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