5968-4632E Datasheet, PDF (51/77 Pages) Keysight Technologies – Probing Solutions for Logic Analyzers

51 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing
High-density, high-performance probes
Keysight Pro Series soft touch connectorless logic analyzer probes
Keysight has developed 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.
Keysight’s soft touch connectorless probes use micro spring-pin technology to provide
reliable contact which is not dependent on the planarity of the PC board or the plating
processes used to fabricate the board. No special cleaning processes are required when
using Keysight’s soft touch probes.
The new Keysight Pro Series soft touch connectorless probes offer a 30% smaller
footprint 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.
Insert
Solder pins from
top of board
Figure 9.7. “Top-side” mountable retention module.
E5404A Pro Series soft touch
connectorless probe
The E5404A is a 34-channel single-ended
Pro Series soft touch connectorless
probe compatible with all Keysight
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 analyzers
with a 40-pin cable connector) 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
Keysight part number E5403A.