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This high-resolution delay line based on the Electro-Mechanical Trombone delay line structure has a total delay range from 0 to 625 ps and bandwidth from DC to 18 Ghz. An internal stepper motor produces precise delay steps with a resolution to 0.5 ps when operated in series connected mode. The patented Mechanical Trombone design has an outstanding operational lifetime of 500,000 operations, and an absolute accuracy of 0.1%, ± 0.2 ps.

In the standard set-up (series connected), two identical 312.5 ps electro-mechanical trombone sections are connected in series via a short semi-rigid coaxial cable on the front panel. The Series Connected configuration provides a full delay extension range of 625 ps with 0.50 ps resolution. Alternatively, if the short semi-rigid coaxial cable is removed (dual channel or parallel connected), two very tightly phase matched delay lines are available with a total delay range of 312.50 ps each, and with a resolution of 0.25 ps.

The PDL-10A is fully programmable via GPIB (IEEE488.2 protocol) interface or via the optional Microterminal (MT-1A). At 18 Ghz, the frequency roll-off is typically less than 1.0 dB. Customers have used this delay line for digital applications up to 40 Gb/s NRZ with excellent results. See Delay Line Specifications Data Sheet for additional detailed information.