Terminology

Period: The time elapsed between the leading edge of

the first pulse and the leading edge of the following pulse.

between the 1.5V point on the leading edge and the

1.5V point on the trailing edge, or the 1.5V point on the

trailing edge and the 1.5V point on the leading edge.

20% and the 80% point on the leading edge of the

input pulse.

80% and the 20% point on the trailing edge of the

input pulse.

the 1.5V point on the leading edge of the input pulse

and the 1.5V point on the leading edge of any tap out-

put pulse.

the 1.5V point on the trailing edge of the input pulse

and the 1.5V point on the trailing edge of any tap out-

put pulse.

Test Setup Description

Figure 3 illustrates the hardware configuration used for

measuring the timing parameters on the DS1110. A

precision pulse generator under software control pro-

duces the input waveform. Time delays are measured

by a time interval counter (20ps resolution) connected

10-Tap Silicon Delay Line

6

______________________________________________________________________

PULSE

GENERATOR

TIME

INTERVAL

COUNTER

VHF SWITCH

CONTROL UNIT

STOP

DEVICE UNDER TEST

Z0 = 50

Ω

START

Figure 3. Test Circuit