Specifications

Circuit Description 6-1
DS360 Ultra Low Distortion Function Generator
Chapter 6
Circuit Description
This chapter provides descriptions of the circuitry of the DS360. Each boards description and function is
discussed. The schematics and parts list are shown at the end of the chapter.
In this Chapter
Overview 6-3
Digital Board Description 6-3
DSP and Control Logic 6-3
Burst Control 6-3
Microprocessor and System Clocks 6-4
Front Panel Control 6-5
GPIB and RS232 6-5
Power Supply 6-5
Analog Board Description 7-6
Digital-Analog Interface 6-6
Waveform Generation 6-6
Distortion Reduction Filters 6-6
Amplitude and Offset Control 6-7
Output Amplifier 6-7
Attenuators and Source Resistors 6-8
Power Supply 6-8
Front Panel Description 6-9
Display Board 6-9
Output Board 6-9
Programmable Resistor Board 6-9
Digital Board Parts List 6-11
Analog Board Parts List 6-15
Front Panel Parts List 6-27
Distortion Filter Parts List 6-31
Miscellaneous and Chassis Parts List 6-32
Digital Board Schematics DIG-1 to DIG-7
Analog Board Schematics ANA-1 to ANA-7
Front Panel Schematics FP-1 and FP-2
Programmable Resistor Board Schematics PROGR1