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TM 11-6625-2980-14
To use this feature, place the DD 501 in the delay
interval mode of operation by moving the wire strap as
shown in Fig. 1-5 or changing connections, depending
on the DD 501 available. Connect the PG 508 and the
DD 501 as shown in Fig. 1-6. Use ten inch (Tektronix
Part Number 012-0208-00) or shorter cables for
interconnecting the two units to reduce delays.
Make certain the PG 508 TRIG/GATE IN input
impedance is set for 50 n. (See External Triggering and
Gating discussion and Fig. 1-2.) Set the controls of the
PG 508 for the desired output waveform with the PG
508 in FREE RUN. Do not use the SQ WAVE mode.
Place the PG 508 in the + SLOPE, SYNC GATE mode
and set the TRIG/GATE LEVEL control at the 2 o'clock
position. Select SLOPE, START + SLOPE
and place the EVENTS and START LEVEL controls at
the 2 o'clock position on the DD 501. The three TRIG'D
lights on the DD 501 and the TRIG'D/GATED light on
the PG 508 will be off until the DD 501 is triggered.
Upon receipt of a trigger, all lights will illuminate. If not,
check the setup and slightly adjust the LEVEL controls
as necessary.
Set the EVENTS DELAY COUNT on the DD
501 for one less than the desired number of counts up to
PG 508 repetition rates of about 20 MHz. See below for
further information. If necessary, a single trigger may be
obtained by rotating the DD 501 START LEVEL control
through the 0 position, with no external trigger applied. A
single trigger may also be obtained by using the
TEKTRONIX manual (One Shot) Trigger Generator,
Tektronix Part Number 016-0597-00. All other DD 501
and PG 508 operating controls function normally.
Due to propagation delays in the PG 508, DD 501
and the interconnecting cables, one or more pulses in
addition to the desired number are generated when the
PG 508 repetition rates are set between 20 MHz and 50
MHz. These extra pulses are consistent for any given
frequency irrespective of the desired EVENTS DELAY
COUNT setting. To determine the number of extra
pulses for a given PG 508 period, set the PG 508 and
the DD 501 controls as previously described. Now adjust
the PG 508 TRIG/GATE LEVEL or the DD 501 EVENTS
LEVEL for the same number of extra pulses at DD 501
EVENTS DELAY COUNT setting of zero and nine.
Fig . 1-7 . Typical propagation delays using PO 508 with DD 501 In counted burst mode at 50 MHz repetition rate .
1-7
Содержание PG 508
Страница 1: ...Tektronix Inc Ρ Ο Box 500 Beaverton Oregon 97077 Serial Nu mber 070 2044 00 First Printing NOV 1975 ...
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Страница 51: ... BACKSIDE TRANSITION TIMING BOARD Α3 ...
Страница 53: ...HIGH LOW LEVEL LEVEL Trigger Generator PG 508 ...
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Страница 93: ...M30603 Change Reference DESCRIP riON LEVEL CONTROL MULTIPLIER Partial ...
Страница 100: ...TM 11 6625 2980 14 Figure 1 0 Pulse generator AN USM 359A vi ...
Страница 145: ...TM 11 6625 2980 14 POWER MODULE INTERFACE PIN ASSIGNMENTS FRONT VIEW A 15 ...
Страница 146: ...TM 11 6625 298014 DETAILED BLOCK DIAGRAM A 16 ...
Страница 164: ...TM 11 6625 2980 14 Section 4 PG 508 CONTROLS AND CONNECTORS FO 1 Controls and connectors 4 1 4 2 blank ...
Страница 165: ...TM 11 6625 2980 14 FO 2 Block Diagram 4 3 4 4 blank ...
Страница 166: ...TM 11 6625 2980 14 FO 3 Input circuit schematic diagram 4 5 4 6 blank ...
Страница 167: ...TM 11 6625 2980 14 FO 4 Period generator schematic diagram 4 7 4 8 blank ...
Страница 168: ...TM 11 6625 2980 14 FO 5 Delay generator schematic diagram 4 9 4 10 blank ...
Страница 169: ...TM 11 6625 2980 14 FO 6 Duration generator and control error circuit schematic diagram 4 11 4 12 blank ...
Страница 170: ...TM 11 6625 2980 14 FO 7 Transition time generator schematic diagram 4 13 4 14 blank ...
Страница 171: ...TM 11 6625 2980 14 FO 8 Level control multiplier schematic diagram 4 15 4 16 blank ...
Страница 172: ...TM 11 6625 2980 14 FO 9 Output amplifier schematic diagram 4 17 4 18 blank ...
Страница 173: ...TM 11 6625 2980 14 FO 10 Tracking voltage supply schematic diagram 4 19 4 20 blank ...
Страница 174: ...TM 11 6625 2980 14 FO 11 PG 508 power supply schematic diagram 4 21 4 22 blank ...
Страница 175: ...TM 11 6625 2980 14 FO 12 TM 503 power supply schematic diagram 4 23 4 24 blank ...
Страница 176: ...TM 11 6625 2980 14 FO 13 A2 board component locations 5 3 5 4 blank ...
Страница 177: ...TM 11 6625 2980 14 FO 14 A3 board component locations 5 5 5 6 blank ...
Страница 178: ...TM 11 6625 2980 14 FO 15 A4 board component locations 5 7 5 8 blank ...
Страница 179: ...TM 11 6625 2980 14 FO 16 PG 508 exploded view 5 9 5 10 blank ...
Страница 180: ...TM 11 6625 2980 14 A 17 A 18 blank ...
Страница 181: ...TM 11 6625 2980 14 TM 503 POWER MODULE A 23 A 24 blank ...
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