WIDEBAND DELAY LINES
The TCD Wideband Delay Modules are fixed delay lines i.e. they provide a fixed amount of delay for a given impedance. The SCD modules contain a number of sections of delay which, using a suitable switching arrangement, can be cascaded together or selected individually. In general (for a given size delay module) the higher the input/output impedance the lower the delay - but bandwidth is increased and delay variation over the band is less; for lower input/output impedance the opposite is true but more delay is packed into a smaller area.
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