W2630 Datasheet, PDF (4/12 Pages) Agilent(Hewlett-Packard) – DDR2 BGA Probes for Logic Analyzers

Protocol Analysis
The W2630 Series BGA probe
along with the B4621A memory bus
decoder provides complete protocol
decode of memory transactions
using an Agilent logic analyzer as
the analysis execution engine. This
combination provides memory bus
triggering, debug and compliance
verification measurements. Data is
decoded and displayed at any level of
detail from the protocol to binary. The
B4621A protocol-decode software
translates acquired signals into easily
understood bus transactions, at the
full bus speed. The Agilent logic
analyzer provides extensive triggering
and store qualification features.
The DDR protocol-decode software
executes in the logic analyzer and
takes user input on system attributes
such as Burst length, CAS and
Additive Latency, as well as Chip
Selects to decode the key DDR bus
signals and present a display that
lists the transaction type, address,
data and command conditions. The
software also supports user-defined
symbols that can be easily added to
the state listing display.
Figure 4. Reliable protocol decode with B4621A DDR2 bus decoder
DDR2 BGA Probe Connection to an Oscilloscope
The DDR2 BGA probe is used with
W3635A scope probe board adapter
and the solder-in probe N5381A or
E2677A high bandwidth solder in
probe to connect to the oscilloscope.
The solder in probe makes a 4 GHz
bandwidth (typical) connection with
the solder points on the BGA probe.
The other alternative is to solder the
ZIF probe head onto the soldering
points on the flex cable and probe
with the N5426A or N5451A ZIF tip.
Figure 5. Probe connection to the oscilloscope with
ZIF probe and tip accessories
Figure 6. W3635A scope probe
board adapter with test points for
connection to oscilloscope
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Figure 7. W2639A