Agilent Technologies 93000 SOC Series Training Manual page 70

Lesson 1 – Analog Modules
Ultra High Speed AWG
The following figure shows the block diagram of the Ultra High
Speed AWG (WGC):
Ultra High Speed AWG Block Diagram
The Ultra High Speed AWG consists of a front-end module which
resides in the testhead, and the instrument itself installed in the
analog support rack.
Front-end Module
The front-end module is installed in the testhead. One front-end
module supports up to two AWG instruments installed in the
analog support rack. However, in the standard configuration, one
front-end module supports only one AWG instrument shown as
the upper block in the above figure. For one AWG instrument, the
front-end module has four signal output pins, one trigger input
pin, and one marker output pin.
The output multiplexer is used to specify one of 2 single-ended
outputs or one of 2 differential outputs for each instrument.
To output a single-ended signal, A+ or B+ pin can be used for the
primary instrument. For the secondary instrument, C+ or D+ can
be used. To output a pair of differential signals, A+ and A-, or B+
and B- pins can be used for the primary instrument. For the
secondary instrument, C+ and C-, or D+ and D- can be used.
In addition, the multiplexer can make the following routes for
these pins and the SYNC_CLK pin:
DC routes to perform DC measurement at one of the AWG pins via
•
the SYNC CLK pin.
Loop back routes from one AWG pin to another.
•
70