CPT7 strobe specifications

CPT7 strobes description

Strobes

CPT7 port

Input/Output

Factory default

Comment

EVENT_IN1

IO1

Input

Leading edge triggered

Active low

Input marks for which a pulse greater than 150 ns triggers certain logs to be generated. (Refer to the MARKPOS, MARK2POS, MARK3POS, MARK1TIME, MARK2TIME and MARK3TIME logs and ONMARK trigger.) Polarity is configurable using the EVENTINCONTROL command.

EVENT_IN2

IO2

EVENT_IN3

IO1

EVENT_OUT1

IO1

Output

Active low

Programmable variable frequency outputs ranging from 0 Hz to 10 MHz (refer to the EVENTOUTCONTROL command).

Minimum pulse period for the CPT7 EVENT_OUT lines is 50 ns.

If your application requires a higher frequency defined pulse (i.e. always 20 MHz at 50% duty cycle), the waveform can be regenerated external to the CPT7 by using a Schmitt trigger or buffer with appropriate limits set on the output line.

EVENT_OUT2

IO2

EVENT_OUT3

IO1

CPT7 strobe electrical specifications

Strobe

Symbol

Min

(V)

Max

(V)

Current

(mA)

EVENT_IN1

EVENT_IN2

EVENT_IN3

VIL

-

0.8

<±1 mA

VIH

2.0

3.3

EVENT_OUT1

EVENT_OUT2

EVENT_OUT3

VOL

-

0.4

±6 mA

VOH

2.0

5.0