
Waveform Generators 7 Analog Modules
System Reference, January 2001
189
Theory of Operation for High Resolution and
High Speed AWGs
This section describes the theory of operation for AWGs.
The following is the block diagram of the high resolution
AWG and high speed AWG.
Figure 80 High Speed AWG and High Resolution AWG Block Diagram
All the components of the high resolution AWG and high
speed AWG are installed in the testhead. The AWG
consists of the following blocks.
•Output Multiplexer
• Output Amplifier
• Attenuator
• Low Pass Filter
• Digital-to-Analog Converter
• Timing Generator
• Sequencer and Waveform Memory
Pogo Pin
DAC
Output Multiplexer
A+
C-
D+
C+
B+
D-
SYNC CLK
SYNC DATA
DGND
awg1
Offset
DAC
B-
Non-inverse
Non-inverse
Inverse
Inverse
Master
Clock
Output
Amp
Attenu
-ator
Filter
A-
Start
Stop
Timing
Generator
Sequencer/
Waveform
memory
AGND
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