Appendix A: Options and Accessories
AWG2021 User Manual
AĆ9
NOTE. Tektronix cannot be responsible for the infringement of any third-party
industrial proprietary rights, copyrights, or other rights arising from the use of
these circuits.
NOTE. The ECB is a multi-layer board. One layer is used as ground, the other as
the power supply. The printed circuit pattern uses 50 W micro–strip lines and the
data lines are wired to the same length so that their delay times will be the same.
Except for the connectors, the parts are all SMD (surface–mounted device) to
connect at the minimum distance.
In laying out the runs, the fact that the signals are high frequency was taken into
account when leading lines around, etc. For example, the latch IC is right next
to the connector to shorten the run from the connector to the IC input. 50 W
termination resistors are connected to the IC pins. The 50 W resistor return is
connected through capacitance to the ground for the connector pin input signals.
The AWG2021 arbitrary waveform generator with Option 04 installed can
provide the following signals at the rear panel output connector. For the layout of
DIGITAL DATA OUT connectors on the rear panel, see “Rear Panel” in
Section 2 “Overview.”
NOTE. An AWG2021 cannot be equipped with Option 03, Option 04 and Option
09 together. Select either Option 03, Option 04 or Option 09.
Data Output. The data (D0–D11) fed to the internal D/A converter is buffered and
connected to the output connector. At the same time that the analog waveform is
output, the digital output can be obtained. Output will be at the TTL level.
Clock Output. The same clock that is fed to the internal D/A converter is buffered
in the same way as the data and connected to the connector. As in the case of
data output, clock output will be at the TTL level.
Figure A-10 is a block diagram of the digital data output Option 04.
Option 04 (Digital Data
Output)
