CTS9513API-2 datasheet(15/28 Pages) ETC

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Celeritous Technical Services Corp

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FAX

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Lubbock, Texas 79410

http://www.celeritous.com

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

Rev E

Tuesday, September 25,

CTS9513-2

5 Chan 16 bit 20MHz Counter/Timer

SOURCE

DATA

ARM COMMAND

L-1

L-2

L-3

.....

COUNT VALUE

TC OUTPUT

TOGGLE OUTPUT

GATE

COUNTER MODE C WAVEFORMS

Figure 12 - CTS9513 Counter Mode C Representative Waveforms

SOURCE

DATA

ARM COMMAND

GATE

L-1

L-2

...

L-1

L-2

...

L-1

L-2

COUNT VALUE

TC OUTPUT

TOGGLE OUTPUT

COUNTER MODE D WAVEFORMS

Figure 13 - CTS9513 Counter Mode D Representative Waveforms

MODE D RATE GENERATOR WITH NO

HARDWARE GATING

Mode D, illustrated in Figure 13. is commonly used

as a programmable frequency source as it continues

to count repetitively until receipt of a DISARM

command. Once ARMed, the counter counts to TC,

automatically reloads the counter from the Load

produced can be a square wave if the Toggle output

mode is specified. The Gate line has no effect on the

counter action.

MODE C HARDWARE TRIGGERED STROBE

In Mode C, as shown in Figure 12, the counter is

active only after receipt of an ARM command and the

application of a Gate edge to the selected gate line.

Once a Gate edge is sensed, the counter will count

until it reaches TC. Subsequent gate actions have no

further effect on the counter action. The counter will

remain inactive until receipt of a new ARM command

and Gate.

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