Atec Agilent-346a - Manual (Page 16)

16
Designing and Probing with Target Connections
For All Agilent Logic Analyzers with 40-pin Pod Connectors
High-Density, High-Performance
Probes
Agilent Pro Series Soft Touch
Connectorless Logic Analyzer Probes
Agilent Technologies has devel-
oped connectorless logic analyzer
probes based on soft touch
probing technology. Connectorless
logic analyzer probing removes
the connector that is traditionally
attached to the target board and
replaces it with an array of probe
pads. This reduces the probe load
on the target by eliminating the
loading associated with the
physical body of the connector.
Additionally, this streamlines the
design flow by eliminating the
need to assign a logic analyzer
connector to the bill of material
of your board, procuring those
connectors and then having them
loaded onto your board.
Agilent’s soft touch connectorless
probes use micro spring-pin tech-
nology to provide reliable contact
which is not dependent on the
planarity of the PC board or the
plating processes used to fabri-
cate the board. No special clean-
ing processes are required when
using Agilent’s soft touch probes.
The new Agilent Technologies Pro
Series soft touch connectorless
probes offer a 30% smaller foot-
print than the original soft touch
probes and are the basis for the
industry standard connectorless
probing footprint.
The probes use a retention module
that ensures soft touch pin-to-PC
board pad alignment and holds
the probe in place while in use.
The Pro Series soft touch uses a
“top-side” mountable retention
module. The retention module is
mounted on the same side of the
board as the probing footprint so
there is no need to access the
back-side of the board. Because
there is no requirement for the
retention module pins to extend
beyond the back-side of the
board, the retention module is
compatible with virtually any
board thickness.
E5404A Pro Series Soft Touch
Connectorless Probe
The E5404A is a 34-channel
single-ended Pro Series soft touch
connectorless probe compatible
with all Agilent logic analyzers
that have a 40-pin pod connector.
It is capable of acquiring data at
the maximum rates of the logic
analyzer it is connected to.
Features
• No connector on the
target board
• Top-side mount retention
module
• Industry-standard
connectorless footprint
• 34 channels, single-ended
clock and data
• Extremely low, <0.7 pF,
equivalent load capacitance
• Capable of data rates >2.5 Gb/s
(maximum rate dependent on
analyzer used)
• 500 mV p-p minimum
signal amplitude
• Robust and reliable soft
touch technology
Unused clock inputs can be used
as data inputs.
The E5404A (used with logic ana-
lyzers with a 40-pin cable connec-
tor) uses the same footprint,
pinout, and retention module as
the E5406A Pro Series soft touch
connectorless probe (used with
logic analyzers with a 90-pin
cable connector).
A kit of five retention modules is
shipped with each Pro Series soft
touch probe. Additional kits can
be ordered using Agilent part
number E5403A.
Figure 5.1. “Top-side” mountable retention module.
Insert Solder pins from
top of board