User’s Guide
Publication number 16760-97007
February, 2002
For Safety information, Warranties, and Regulatory information,
see the pages behind the index.
© Copyright Agilent Technologies 2000-2002
All Rights Reserved
Agilent Technologies Probes for
the 16760A Logic Analyzer
(E5378A, E5379A, E5380A, and E5386A)
Probing Solutions for the Agilent 16760A
High Speed State Analyzer — At a Glance
The Agilent 16760A is a high-speed logic analyzer capable of making state
measurements at clock speeds up to 1.5 Gb/s. For high bandwidth measurements,
the 16760A logic analyzer has both a differential and single-ended probes available.
For target systems designed to use the Agilent E5346A 38-Pin Probe, a probe is
available using an Amp “MICTOR 38” connector.
For more information on the 16760A logic analyzer, refer to the online help in the
product.
E5378A 100-pin Single-ended Probe
Also available as option 010 on the Agilent
16760A.
• 34 Channels
• State speeds up to 1.5 Gb/s
• 250 mV peak-to-peak sensitivity
• 100-pin Samtec connector
• Requires Probing Connector Kit
(see page 44)
E5386A Half-channel Adapter with E5378A
The E5386A adapter maps the 34 signals
from the 100-pin samtec connector to the
16760A when operating in half-channel
state mode..
16760A module
Logic analyzer
probe cables
E5378A 100-pin single-ended
Two 16760A modules
Four
logic analyzer
probe cables
Two E5386A
half-channel adapters
E5378A 100-pin single-ended probe
2
16760A module
E5379A 100-pin Differential Probe
Also available as option 011 on the Agilent
16760A.
Two
logic analyzer
probe cables
Two E5379A
differential probes
16760A module
Two probe
cables
E5386A half-channel
adapter
E5379A differential probe
E5380A 38-pin Single-ended Probe
•17 Channels
•State speeds up to 1.5 Gb/s
•200 mV peak-to-peak sensitivity
•100-pin Samtec connector
•Requires Probing Connector Kit
(see page 44)
E5386A Half-channel Adapter with E5379A
The E5386A adapter maps the 17
differential signals from the 100-pin
Samtec connector to the 16760A when
operating in half-channel state mode.
16760A module
Also available as option 012 on the Agilent
16760A.
• Compatible with boards designed for
Logic analyser
probe cables
Agilent E5346A 38-pin Probe
• 34 Channels
• State speeds up to 600 Mb/s
• 300 mV peak-to-peak sensitivity
• 38-pin MICTOR connector
E5380A 38-pin
single-ended
probe
• Requires AMP MICTOR 38 Connector
and Agilent Support Shroud
(see page 44)
3
In This Book
In this book, you will find information that helps you understand and implement the
high-bandwidth, high density probing solutions available with the Agilent 16760A
high speed state logic analyzer. Use this information to both evaluate the electrical
and mechanical implications to your target system’s design, and to properly select
and layout the proper components used to connect to the logic analyzer.
Chapter 1 is a description of the available probing options.
Chapter 2 covers the mechanical considerations such as connector/shroud type,
footprint for PC board layout, and probe/connector dimensions.
Chapter 3 covers the electrical considerations such as equivalent probe loads
Chapter 4 provides design theory.
Chapter 5 offers a list of recommended reading for additional information.
Chapter 6 lists connectors and shrouds that may be ordered.
4
Contents
E5378A 100-pin Single-ended Probe 2
E5386A Half-channel Adapter with E5378A 2
E5379A 100-pin Differential Probe 3
E5386A Half-channel Adapter with E5379A 3
E5380A 38-pin Single-ended Probe 3
1 Probing Options 9
The E5378A 100-pin Single-ended Probe 10
The E5379A 100-pin Differential Probe 11
The E5380A 38-pin Single-ended Probe 12
The E5386A Half-channel Adapter 13
2 Mechanical Considerations 15
E5378A and E5379A Probe Specifications 16
E5380A 38-pin Single-ended Probe 23
E5386A Half-channel Adapter 28
Used with E5378A 100-pin Single-ended Probe 29
Used with E5379A 100-pin Differential Probe 30
5
Contents
3 Electrical Considerations 31
Equivalent Probe Loads 32
E5378A and E5379A Models 32
E5380A Model 33
4 Circuit Board Design 35
Transmission Line Considerations 36
Thresholds 37
E5378A 100-pin single-ended probe 37
Data inputs 37
Clock input 37
E5379A 100-pin differential probe 38
Data inputs 38
Clock input 38
E5380A 38-pin single-ended probe 39
Labels split across probes 39
Reordered bits 39
Half-channel 1.5 Gb/s mode 40
5 Recommended Reading 41
For More Information 42
MECL System Design Handbook 42
High-speed Digital Design 42
Designing High-speed Target Systems for Logic Analyzer Probing 42
6
Contents
6 Connectors and Shrouds 43
Ordering Probing Connectors and Shrouds 44
7
Contents
8
1
Probing Options
Description of the E5378A, E5379A, E5380A, and E5386 probes.
9
Chapter 1: Probing Options
The E5378A 100-pin Single-ended Probe
The E5378A 100-pin Single-ended Probe
The E5378A is a 34-channel single-ended probe capable of capturing data up to 1.5
Gb/s. The probe has the following inputs:
• 32 single-ended data inputs, in two groups (pods) of 16.
• Two differential clock or data inputs. Refer to page 37 for a discussion of how to
utilize the clock input. Either or both clock inputs can be acquired as data inputs
if not used as a clock.
• Two data threshold reference inputs, one for each pod (group of 16 data inputs).
Refer to page 37 for guidelines and discussion about how to utilize the threshold
inputs.
The Agilent 16760-68702 or 16760-68703 Probing Connector Kit is required for
connecting the E5378A probe to your target system. The kit contains five mating
connectors and five support shrouds. The connectors and shrouds may be ordered
separately if desired. See the table on page 44 for part numbers.
See Also Chapter 2 for the mechanical information to design the connector into your target
system board.
E5378A 100-pin single-ended probe and probing connector kit
10
Chapter 1: Probing Options
The E5379A 100-pin Differential Probe
The E5379A 100-pin Differential Probe
The E5379A is a 17-channel differential probe capable of capturing data up to 1.5
Gb/s. Two E5379A probes are required to support all the inputs on one 16760A. The
probe has the following inputs:
• 16 differential data inputs.
• One differential clock or data input. Refer to page 38 for a discussion of how to
utilize the clock input. The clock input can be acquired as a data input if not used
as a clock.
The Agilent 16760-68702 or 16760-68703 Probing Connector Kit is required for
connecting the E5379A probe to your target system. The kit contains five mating
connectors and five support shrouds. The connectors and shrouds may be ordered
separately if desired. See the table on page 44 for part numbers.
Differential Input Amplitude
Definition.
difference voltage V - V
than or equal to 200 mV p-p.
For differential signals, the
must be greater
See Also
Chapter 2 for the
mechanical
information to design
the connector into
your target system
boards.
E5379A 100-pin differential probe and probing connector kit
11
Chapter 1: Probing Options
The E5380A 38-pin Single-ended Probe
The E5380A 38-pin Single-ended Probe
The E5380A is designed to be compatible with target systems designed for the
Agilent E5346A 38-pin Probe. If you have a target system designed for connection
to the E5346A 38-pin Probe, the E5380A probe will connect directly to the same
connector. The recommended state speed of this probe is 600 Mbits/second. The
minimum input signal amplitude required by the E5380A is 300 mV.
The probe combines two 17-channel cables into a single-ended 38-pin MICTOR
connector. The probe has the following inputs:
• 32 single-ended data inputs, in two groups (pods) of 16.
• Two single-ended clock or data inputs. Refer to page 37 for a discussion of how
to utilize the clock input. Either or both clock inputs can be acquired as data
inputs if not used as a clock.
The Agilent E5346-68701 or E5346-68700 Probing Connector Kit is required for
connecting the E5380A probe to your target system. The kit contains five mating
connectors and five support shrouds. The connectors and shrouds may be ordered
separately if desired. See the table on page 44 for part numbers.
See Also Chapter 2 for the mechanical information to design the connector into your target
system board
E5380A 38-pin single-ended probe and probing connector kit
12
Chapter 1: Probing Options
The E5386A Half-channel Adapter
The E5386A Half-channel Adapter
The E5386A Half-channel Adapter is intended to be used in half-channel state mode
and works with:
• E5378A 100-pin Single-ended Probe
• E5379A 100-pin Differential Probe
The E5386A Half-channel Adapter has it's own ID code. When using the adapter,
the logic analyzer recognizes its code rather than that of the probe which is attached
to the target. Therefore, the user interface format menu doesn't automatically set
thresholds to the right values. You need to go into the threshold menu and select
(differential, custom, or standard settings).
When using the adapter in half-channel state:
• Clock-bits are not available in half-channel state mode (although JCLK on the
master is still used).
• Be sure to connect Master pod 1 of the logic analyzer to the upper bits, 8-15 +
clk, on the half-channel adapter. This is necessary to connect the clock in the
system under test to the logic analyzer system clock.
• Using the E5386A does not reduce the performance of the 16760A and the
E5378A or E5379A system.
If the E5386A is used in full-channel state mode, the thresholds on the unused (odd)
bits are floating. This could result in spurious activity indicators in the format menu.
13
Chapter 1: Probing Options
The E5386A Half-channel Adapter
14
2
Mechanical Considerations
Once you have decided which probe is required, use the following mechanical
information to design the appropriate connector into your target system board.
.
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