81101A Pulse Generator, 50 MHz

Single-channel pulse generator
50 MHz, 10 V from 50 Ohm into 50 Ohm
Triggerable / PLL operation selectable
Pulse / burst modes selectable
Variable transition times
BNC outputs, single-ended

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81104A Pulse/Pattern Generator, 80 MHz

Single-/dual-channel pulse/pattern generator.

80 MHz, 10 V from 50 Ohm into 50 Ohm
Triggerable / PLL operation selectable
Pulse / burst / pattern modes selectable
Variable transition times

Specifications
Specifications describe the instrument°¶s warranted performance. Non-warranted
values are described as typical. All specifications apply after a
30-minute warm-up phase with 50 Ω source/load resistance and separate
channels. All specifications are valid from 0ĘXC to 55ĘXC ambient temperature.

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

Mainframe  81101A
Frequency range 1 mHz to 50 MHz
Timing resolution 3.5 digits, 5 ps best case
RMS jitter (period, width, delay)
With PLL °” 0.001% °” 15 ps
With VCO [1] °” 0.01% °” 15 ps
Period range 20 ns to 999.5 s
Accuracy with PLL °” 0.01% (°” 5%)[1]
Width range 10.0 ns to (period - 10.0 ns)
Accuracy °” 5% °” 250 ps[2]
Additional variable delay range 0 ns to (period - 20 ns)
Accuracy [3] °” 5% °” 1 ns
Double pulse delay range (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
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[1] If the startable oscillator (VCO) is used (PLL not active).
[2] Changing of amplitude may add 0.5 ns.

[3] Width accuracy specification is valid up to 5.5 Vpp amplitude. Above this amplitude, the width will typically increase up to 300ps.

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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 over programming).

Transition times:

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These can be entered as leading/trailing edge or % of width. Leading and trailing edges are
independent within one of the following overlapping 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.

Output timing fidelity: Period, delay, and width are continuously variable without any output glitches or dropouts.
Repeatability: Is typically four times better than accuracy.

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