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Timing characteristics – Atec Agilent-81100 Series User Manual

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81101A Specifications

Burst Count: 2 to 65536 (single or double
pulses).

Delay: Delay, phase or % of period.

Double pulse delay: Double pulse and
delay are mutually exclusive.

Duty cycle: Set between 0.1% and 95%
(subject to width limits. 99.9% with
overprogramming).

Mainframe

Agilent 81101A

Frequency range

1 mHz to 50 MHz

Timing resolution

3.5 digits, 5 ps best case

Period RMS jitter
• With

PLL

• With

VCO

0.001% + 15 ps
0.01% + 15 ps

Period range
• Accuracy with PLL /VCO

20 ns to 999.5 s
± 0.01% (±5%) (similar to RMS jitter)

Width range
Accuracy

10.0 ns to (period - 10.0 ns)
±5% ±250 ps

1

RMS jitter
• Additional variable delay range
• Accuracy

2

0.01% + 15 ps
0 ns to (period -20 ns)
±5% ±1 ns

RMS jitter
• Double pulse delay range

0.01% + 15 ps
(width + 10.0 ns) to (period- width - 10.0 ns)

Accuracy

±5% ± 500 ps

Transition time range (10/90)

5 ns to 200 ms variable

Accuracy

±10% ±200 ps

Linearity

3% typ. for transitions > 100 ns

1. Changing of amplitude may add 0.5 ns.

2. Width accuracy specification is valid up to 5.5 Vpp amplitude. Above this amplitude, the width

will typically increase up to 300 ps.

Timing Characteristics

Measured at 50% amplitude at fastest transitions in continuous mode and 50 Ω source impedance.

Transition times: These can be entered
as leading/trailing edge or % of width.
Leading and trailing edges are indepen-
dent within one of the following over-
lapping segments (1:20 ratio):

• 5 ns - 20 ns
• 10 ns - 200 ns
• 100 ns - 2 µs
• 1µs - 20 µs
• 10 µs - 200 µs
• 100 µs - 2 ms
• 1 ms - 20 ms
• 10 ms - 200 ms

Data Sheet 81100 Family of Pulse Pattern Generators

3

Repeatability: Is typically four times better
than accuracy

Output timing fidelity: Period, delay and
width are continuously variable without
any output glitches or dropouts.