2-10
IM 704610-01E
Gate Time <<For procedures, see section 4.5>>
You can set the time (gate time) during which the measured values of pulse width and
phase difference are stored in the acquisition memory.
Arming <<For procedures, see section 4.6>>
Arming refers to the cue used to start the measurement. As opposed to a trigger, which
refers to the cue used to measure the pulse width or phase difference of each pulse,
arming refers to the starting point of the measurement of a set of pulse widths or phase
differences used to derive the jitter.
Auto Arming (Internal Arming)
The internal signal of the TA220 is the arming source. Arming is the cue used to start the
first measurement (the first trigger).
External Arming
Arming is activated when an external signal (arming source) is applied to the external
arming input terminal. You can also select whether the rising or falling edge is used to
activate the arming.
Arming Delay
When using external arming, you can delay the start of the measurement by a given
amount of time (delay time) after arming occurs.
Block Sampling <<For procedures, see section 4.7>>
Repeating one block of measurement a specified number of times is called block
sampling. With block sampling, all data collected after performing one block of
measurement a specified number of repetitions is processed and displayed together.
Block sampling measurement is available when external arming is active.
S1
S2
S3
S1
S2
S3
Input signal
External arming
signal
First block
Arming delay
Second block
Arming delay
Start measurement
Start measurement
2.4 Measurement Conditions