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Timing characteristics – Atec Agilent-81100 Series User Manual

Page 5

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81104A and 81110A Specifications

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

Delay: Delay, phase or % of period.

Double pulse and delay: Mutually exclusive.

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

Repeatability: Is typ. four times better than
accuracy.

Transition times: leading/ trailing edge
or % of width. Leading and trailing edges
are independent Agilent 81111A/Agilent
81105A) within one of the following
overlapping segments (1:20 ratio):

• 2 ns (3 ns) - 20 ns
• 10 ns - 200 ns
• 100 ns - 2 ms
• 1µs - 20 µs
• 10 µs - 200 µs
• 100 µs - 2 ms
• 1 ms - 20 ms
• 10 ms - 200 ms

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

Overprogramming: All parameters of the
Agilent 81110A, except transitions, can
be set to whatever the 330 MHz timing
system will allow. This applies also when
the Agilent 81111A (165 MHz) output
module is used.

Data Sheet 81100 Family of Pulse Pattern Generators

5

Timing characteristics

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

Mainframe output module

Agilent 81104A
Agilent 81105A

Agilent 81110A
Agilent 81111A

Agilent 81110A
Agilent 81112A

Frequency range
• From 1 KΩ

1 mHz to 80 MHz
Up to 50 MHz typ.

1 mHz to 165 MHz
Up to 60 Mhz typ.

1 mHz to 330 MHz
N/A

Timing resolution

3.5 digits, 5 ps best case

3.5 digits, 5 ps best case

3.5 digits, 5 ps best case

Period range

12.5 ns to 999.5 s

12.5 ns to 999.5 s

12.5 ns to 999.5 s

Period RMS jitter
• With

PLL

• With

VCO

0.001% + 15 ps
0.01% + 15 ps

0.001% + 15 ps
0.01% + 15 ps

0.001% + 15 ps
0.01% + 15 ps

Accuracy
• With

PLL

• With

VCO

0.001% +15 ps
± 0.01% (± 5%)

± 0.01%
(± 0.5% typ. after self-cal.,
± 3% without self-cal.)

± 0.01%
(± 0.5% typ. After self-cal.,
± 3% without self-cal.)

Width range

6.25 ns to (period 6.25 ns)

3.03 ns to (period - 3.03 ns)

1.515 ns to (period - 1.515 ns)

Accuracy

± 5% ± 250 ps

± 0.5% ± 250 ps typ.
After self-cal. ±3% ± 250 ps

± 0.5% ± 250 ps typ.
After self-cal. ±3% ± 250 ps

Jitter (RMS)

0.01% +15 ps

0.01% +15 ps

0.01% +15 ps

Add. variable delay range

0 ns to (period -12.5)

0 ns to (period -3.03 ns)

0 ns to (period -3.03 ns)

Accuracy

± 5% ± 0.5 ns

± 0.5% ± 0.5 ns typ. ± 3%
± 0.5 ns after self-cal.

± 0.5% ± 0.5 ns typ. ± 3%
± 0.5 ns after self-cal.

Jitter (RMS)

0.01% +15 ps

Double pulse delay range

Min period

12.5 ns to (period - width - 6.25 ns)

25 ns (40 MHz) typ.

6.06 ns to (period -width - 3.03 ns)

12.2 ns (82 MHz) typ.

3.03 ns to (period - width - 1.5)
6.06 ns (165 MHz) typ.
± 0.5% ± 150 ps typ. ± 3%
± 150 ps after self-cal.

Accuracy

± 5% ± 250 ps

± 0.5% ± 150 ps typ. ± 3%
± 150 ps after self-cal.

± 0.5% ± 150 ps typ. ± 3%
± 150 ps after self-cal.

Transition time range (10/90)
Minimum
(with overprogramming)

3 ns to 200 ms
variable
≤ 3 ns
5 ns typ. For 1 KW

2 ns to 200 ms variable

≤ 2ns/1.4 ns typ. For ELC levels
(20/80) Source impeded

0.8 ns or 1.6 ns selectable

≤ 600 ps for Vpp ≤ 1 V
450 ps typ. for ELC levels (20/80)
≤ 900 ps for Vpp > 1 V

Accuracy

± 10% ± 200 ps typ.
± 10% ± 400 ps

± 10% ± 200 ps typ.
± 10% ± 400 ps

± 10% ± 200 ps typ.
± 10% ± 400 ps

Linearity

3% typ. For transitions > 100 ns

3% typ. for transitions > 100 ns

N/A

1. Source impedance is selectable from 50 Ω to 1 KΩ for the Agilent 81111A.

2. Changing of amplitude may add 0.5 ns.