Audio Generator Section - Agilent Technologies E8285A Manual

Audio Generator Section

Waveform Generation
The Signal Source and Analyzer, see
frequency and wave shape information from the Controller. Waveform
values are calculated real-time by a digital waveform synthesis IC. The
LFS1 output is always a sine-wave. The LFS2 output is a sine-wave
unless one of the function generator waveforms is selected, or signaling
is selected from the front panel.
Level Control
Audio level is controlled by the Modulation Distribution assembly, see
figure 8-20 on page
leveled audio signal is passed on to the RF Generator section.
Figure 8-19 Signaling and Analyzer Assembly
figure 8-19 on page
278, by using a DAC and variable attenuators. The
Block Diagrams
Audio Generator Section
277, gets
277