Tektronix 1502C Service Manual

Circuit Descriptions
1502C MTDR Service Manual
5–19
50 ns
START PULSE
VAR. DELAY RAMP
TO SET DELAY ZERO
COMPARATOR LEVEL SET SO SAMPLE TAKEN AT 10% POINT ON OUTPUT PULSE
PULSE OUT
10% LEVEL
COMPARATOR OUTPUT
DELAY ZERO SET
50 ns RAMP SET
FIXED CIRCUIT
DELAYS
50 ns RAMP START
0V = 0 DELAY
50 ns DELAY
COMPARATOR LEVEL SET TO SAMPLE PULSE AT 10% POINT ON OUTPUT PULSE
0V COMPARATOR LEVEL = 0 DELAY
4V = 50ns DELAY
∼
∼
20 MHz CLK
TP2031
TRIG TO TRIG TO
SAMPLE TRIG
PULSE TRIG
DIGITAL DELAY
PULSE GEN.
TP9011
SAMPLER
TP7010 TP2030
Figure 5–11: Calibration of Delay Zero and 50-ns Analog Delay
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Tektronix 1502C Specifications

General

Brand	Tektronix
Model	1502C
Category	Measuring Instruments
Language	English