Fluke 93 - Page 38

CIRCUIT DESCRIPTIONS
3.3 DIGITAL CIRCUITS
(A1
)
3.3.1 Introduction
TTie following paragraphs
describe the
circuits
on the digital At PCB In detail.
Refer to circuit diagram
At (figure 10.2 in chapter
10).
3.3.2 Overview digital circuits
The
digital circuitry of the ScopeMeter can be separated Into three main parts:
'
Micro proceeeor circuitry
•
Digital ASIC
(in the following text: D-ASIC) circuitry
-
LCD
circuitry
A block diagram,
which clearly shows the connections between these main
parts. Is shown In
figure 3.2
TO/TROM
niOfl ANALOG
ADC ASIC
ST6097
9?02C4
DIGITAL
A1
PCB
tCIRCUIT DIAGRAM ATI
Figure 3.2 Block diegram main parts digital drcuitry