81133A Datasheet, PDF (2/10 Pages) Keysight Technologies – 3.35 GHz Pulse Pattern Generators

02 | Keysight | 81133A and 81134A, 3.35 GHz Pulse Pattern Generators - Data Sheet
81133A and 81134A
3.35 GHz Pulse Pattern Generators
The need for pulse and pattern generation is fundamental to
digital device characterization tasks. The ability to emulate the
pulse and pattern conditions to which the device will encounter
in its final application, is essential. This emulation should include
both typical and worst case conditions. Accurate emulation
requires superlative signal integrity and timing performance
along with full control over parameters that allow specific worst
case testing.
Connectors
Front panel connectors
All signal outputs and inputs are accessible at the front panel.
These are:
–– 2 (or 4) output connectors for the 1 (or 2) differential
channel(s)
–– Trigger output
–– Clock input
–– Start input
–– 1 (or 2) delay control input(s) for the 1 (or 2) channel(s)
Setting Standards
The Keysight Technologies, Inc. 81133A and 81134A 3.35 GHz
Pulse Pattern Generators provide programmable pulse periods
from 15 MHz (66.6 ns) to 3.35 GHz (298.5 ps) on all channels.
With frequency ranges this fast, the transition time performance
becomes critical; the Keysight 81133A and 81134A perform at
less than 60 ps transition. The Delay Control Input and the Vari-
able Crossover Point functionalities allow fast and easy Signal
Integrity measurements, including emulation of real world signals
by adding jitter to clock or data signals or by distorting the ‘eye’
for eye diagram measurements.
Key Features
Rear panel connectors
Remote programming interfaces: GPIB, LAN, USB 2.0 (see also
‘Additional Features’)
Clock Source
Selecting the clock source determines the origin of the time base.
All other timing parameters are derived from it.
There are two choices:
Internal
The Clock is derived from the internal oscillator.
–– Pulse, Data Pattern and PRBS generation from 15 MHz
up to 3.35 GHz
–– Data formats NRZ, RZ and R1
–– 12 Mbit pattern memory per channel
–– Low jitter, high accuracy
–– Fast transition times
–– PRBS generation from 25 -1…231 -1
–– Delay control input for pre-defined jitter input
–– Jitter emulation up to ± 250 ps
–– Easy-to-use graphical user interface
–– 50 mV to 2 Vpp output amplitude
–– Differential outputs
–– 1 or 2 channels
External
The Clock is derived from the external input. The ext. frequency is
measured once and is thereafter used to maintain the calculated
frequency dependant values including the pulse width or phase if
set to duty cycle mode or phase mode respectively.
External 10 MHz reference
A 10 MHz reference clock can be applied to the clock input. This
clock is used as a reference for all timing parameters.
Direct mode (direct internal/ direct external)
The direct modes allow changes of frequency without dropouts
in the range of 1:2. This can be used for applications, where drop-
outs would make a measurement impossible (e.g.: PLL frequency
sweep, micro processor clock sweep). In both direct modes, the
delay and deskew of all channels is set to zero (deskewed at the
connectors) and can’t be changed. Square mode, data mode
(NRZ only) and PRBS mode (NRZ only) are available. In ‘Direct
External’ mode the PLL is bypassed and the instrument exactly
follows the externally attached frequency.