Tektronix 7D20 Operator's Manual page 27

TABLE 1-1 (CONT)
Electrical Characteristics
Characteristic ~ Performance Requirement
Resolution
Vertical
I
Nominally 0.04 Div .
Horizontal
TIME/DIV Points/Waveform Resolution
EXT, 20s-500ps 1024 0 .01 Div .
200Ns-2Ns 820 0 .0125 Div .
fps-50 ns 1024
0 .01 Div .
Stored Timing Accuracy
DIGITIZER
Acquisition Window
~ Nominally ±5 Div from center graticule line .
1 Cursor ±0 .1% of reading +0, -1 sample interval
±300 ps .
2 Cursors ~ t0 .1 % of reading ±600 ps.
Digitizer Maximum Sample
140 megasamples/second .
Rate
Digitizing Modes
Equivalent Time
~ 1 ps/div through 50 ns/div .
Extended Real-Time
~ 200 ps/div to 2 ps/div .
Real-Time
~ 50 ms/div to 500 ps/div .
Roll
120 s/div to 100 ms/div and EXTernal CLOCK .
External Clock
Input Frequency (Max) <_10 kHz .
TTL
~ 55 Vpk.
REV SEPT 82
General Information-7D20