Atec Agilent-8133A User Manual
The Standard in Pulse Generator
Technology
Key Features
· 33 MHz to 3 GHz Frequency
· <100 ps transition times
· <5 ps pulse jitter
· ±0.5% ps Width Accuracy
· ±100 ps Width Accuracy
· ±150 ps Delay Accuracy
· 1 or 2 Output Channels
· 2
23-1
PRBS Generation
· SCPI Programming Commands
Agilent Technologies
8133A 3 GHz Pulse Generator
The need for pulse generation is
fundamental to any device
characterization task. The ability to
emulate the pulse conditions to which
the device will be subjected is
essential. This emulation should
include both typical and worst case
conditions. Such accurate emulation
requires superlative signal integrity
and timing performance.
Setting Standards
The Agilent 8133A 3 GHz Pulse
Generator provides pulses with
programmable period from 333 ps to
30 ns, full 3 GHz pulse capability on
all channels. The pulse width can be
programmed too, along with a delay
or the interchannel delay. At these
frequency ranges the transition time
performance becomes critical; less
than 100 ps is specified, less than
60 ps is typical, so excellent signal
integrity is assured. And last but not
least, a typical jitter of 1 ps creates
precise and accurate timing
conditions.
Agilent Technologies
8133A 3 GHz Pulse Generator
Technical Specifications
2
Pulse and Data Functionality
The 8133A ’s standard configuration
includes one pulse channel. A second
channel can be added. This can be
either:
· pulse/data channel (option 002)
· pulse channel (option 003)
Option 002 allows 32 bit, digital
pattern generation in NRZ and RZ
(50%duty cycle) mode.
Pulse/data channel 2 can also be
programmed to provide a pseudorandom binary~sequence (PRBS) of
data,a PRBS of 2
23-1
, which
conforms to CCITT 0.151.PRBS
generation capability finds a
particular application,in allowing the
instrument to be used as a data
source for eye diagram
measurements.
Human Interface
You will particularly appreciate the
interactive human interface when you
are operating the Agilent 8133A on
the bench. The easy access to all
parameters helps you concentrate on
the measurement task and react
immediately to unexpected problems.
The constant vernier steps for
parameters allow you to increment or
decrement through the entire
parameter range with a fixed stepsize,using only one key, which is
especially helpful when doing margin
testing.
The immediate error-guidance lets
you know what ’s wrong,with
messages like ”width> Period ”, and
how to fix it,with arrows indicating
that a parameter should be increased
or decreased. You can quickly recall
last valid setting if you prefer.
The Agilent 8133A is available in four different configurations. The differences are timing capabilities and number of channels with different
functionality.
8133A Option 001 Option 002 Option 003
Channel 1
Width or
Delay with Square
Delay also in Width
Mode
Delay also in Width
Mode
Delay also in Width
Mode
Channel 2
32-bit data
PRBS 223-1
Divided Square
Second Pulse Channel
with Width or Delay
with Square
Note: option 002 and 003 contain option 001
3
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 W source/load resistance
and separate channels. All specifications are valid from 0°C to 55°C ambient temperature.
Timing Characteristics
Measured at 50% amplitude at fastest transitions in continuous mode and 50 W source impedance.
Mainframe
Output module
Agilent 8133A
Pulse Channel 1
Delay Pulse Channel 1
Option 001
Pulse Channel 2
Option 003
Pulse/Data Channel 2
Option 002
Frequency Range
33.0 MHz to 3.0000 GHz
Period Range
333 ps to 30.303 ns
Timing resolution
3.5 digits, 1 ps best case
RMS Jitter (period, delay, width)
less than 5 ps (1 ps typical)
10 ps ( f<2 GHz: 5ps)
Accuracy
±±
0.5% (±± 0.1% typical)
Width range
[1]
150 ps to (period 150 ps) maximum 10.000 ns
Resolution
1ps
Accuracy
±±
100 ps (
±±
30 ps typical)
Duty Cycle
[2]
0% to 100%
Resolution
0.1%, best case 1
Add. Variable delay
Pulse mode: no
Square mode: 0.000 ns
10.000 ns
Pulse mode: -5.000
to + 5.000ns
Square mode: -5.000
ns to 15.000 ns
[3]
Pulse mode: no
Square mode: 0.000 ns to 10.000 ns
Channel 1 to Channel 2 Delay
[4]
Pulse mode: -5.000 ns to + 5.000 ns
Resolution
1 ps
Accuracy
[5]
±±
150 ps (
±±
30 ps typical)
[6]
±±
50 ps
Phase
[7]
0°° to 3600
°°
-3600°° to 3600
°°
-3600°° to 3600
°°
-3600°° to 3600
°°
Resolution
0.1°°, best case 1 ps
Skew
[8]
±±
5 ns
Notes:
[1]
The width can only be varied in Pulse mode. In square mode the duty cycle is fixed at 50%
[2]
Width and duty cycle are mutually exclusive. Duty Cycle settings and limits are subject to the same specifications and settings as
Width.
[3
]
Delay variation Channel 2 to Channel 1
[4]
The interchannel delay between Channel 1 and Channel 2 is the programmed delay of Channel
[5]
Any parameter variation
[6]
Only delay variation
[7]
Delay and Phase are mutually exclusive. Phase settings and limits are subject to the same specifications and settings as
[8]
Delay or Phase, plus Skew must be within the Delay Range
Repeatability: is typ. four times better
than accuracy.
Internal Clock Generation
The internal clock can be set in
frequency or period mode
External Clock
The external input signal determines
the timebase of the instrument. The
external period or frequency is
measured and displayed, allowing the
correct setting of Duty Cycle and
Phase also in External Clock mode.
External Frequency Counter Period
Range: 333 ps to 30.303 ns (300 ps to
500 ns typical)
Resolution: 1 ps
Accuracy: ± 0. 1 %
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