Agilent Technologies 4284A Service Manual page 76

A N A LOG S E CT I O N B LO C K D I AG RAM (ST D)
A5 S I G N A L SO U RC E
Quasi - S i n e -
Wave Generator
19.2�Hl
16.0 M�11
X:oI OSC
A D -eLK sr F
'--- -- --v- -- -'
i: ':'6
Hcur
L�Ol LCUf
Range Resistor
I
[QJ I
1 - V
Converter
6 V
A E C TOR RAT 10
_
Process Phase Sen s i t ive Detec t o r �
I I
I
x '2.5
' s­ ' s­
I I
1
1 10
ERR X iO
F S F
'---v- -- -'
From A5
A2 M O DU LATO R
1 30
I x
I
7
MODE M
LEVEL 1
OSC Norma l izer
from A5
Figure 3-1 1 . Analog Section Block Diagram (Std.)
From A5
90DEG
'--- -v- -- --'
from �5
3-3 1