• Delay Control In
Allows you to connect a signal for generating jitter in the data outputs.
• Aux In
The signal at the Aux In port can be used to switch between patterns A and B
or to "blank" (suppress) the output signal. When a user-defined sequence is
executed, it can also be used to control the sequence execution.
Understanding the Pattern Generator's Output Ports
The pattern generator provides the following output ports:
• Data Out and Data Out
The data outputs serve as device stimuli and can be set up so that they are
compatible with a variety of logic families. With respect to Data Out, Data
Out has inverted logic.
• Clock Out and Clock Out
The clock outputs serve as frequency (bit rate) references and can be set up
so that they are compatible with a variety of logic families. With respect to
Clock Out, Clock Out has inverted logic.
• Trigger/Ref Clock Out and Trigger/Ref Clock Out
This port allows you to connect a trigger for another device (for example, an
oscilloscope) and can be set up so that they are compatible with a variety of
logic families. With respect to Trigger/Ref Clock Out, Trigger/Ref Clock Out
has inverted logic.
• Aux Data Out and Aux Data Out
This port allows you to generate a pulse with a frequency that is a fraction of
the present clock and can be set up so that they are compatible with a variety
of logic families. With respect to Aux Data out, Aux Data Out has inverted logic.
Note that this output is not phase-synchronized with the clock.
• Aux Clk Out
This output port is intended as clock input for N4916B De-Emphasis signal
converter.
The complementary outputs can be used when:
• additional output capability is needed for an instrument such as an oscilloscope
or digital communication analyzer.
• your device requires differential inputs.
N O T E
The pattern generator's Data Out, Clock Out, Aux Data Out, Trigger/Ref Clock Out
and Aux Clk Out ports must be terminated with 50
Ω
if they are not connected.
Setting up the Pattern Generator
4
Agilent J-BERT N4903B High-Performance Serial BERT
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Summary of Contents for J-BERT N4903B
Page 1: ...S Agilent J BERT N4903B High Performance Serial BERT User Guide s Agilent Technologies ...
Page 10: ...10 Agilent J BERT N4903B High Performance Serial BERT ...
Page 36: ...1 Planning the Test 36 Agilent J BERT N4903B High Performance Serial BERT ...
Page 60: ...2 Setting up External Instrument s 60 Agilent J BERT N4903B High Performance Serial BERT ...
Page 120: ...3 Setting up Patterns 120 Agilent J BERT N4903B High Performance Serial BERT ...
Page 360: ...6 Advanced Analysis 360 Agilent J BERT N4903B High Performance Serial BERT ...
Page 468: ...8 Jitter Tolerance Tests 468 Agilent J BERT N4903B High Performance Serial BERT ...
Page 524: ...9 Solving Problems 524 Agilent J BERT N4903B High Performance Serial BERT ...
Page 566: ...10 Customizing the Instrument 566 Agilent J BERT N4903B High Performance Serial BERT ...