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DIGITAL-TO-ANALEG
CONVERTER BLO_CK-ASSEMBLY
(P/OAl-BOARD
A S S E M B L Y L ( z 5 3 3 4 - 6 0 0 1 4
[ S E E NOTE 4 ) )
( S H E E T i F 7 ) DATE CODE-89231
- -
- -
- -
-
-
D A C A
I
V O L T A G E S E L E C T I O N
\
/
S W I T C H I N G
,
I
I
CONTROL
S E N S I T I V I T Y
SWITCH
DAC A/FRONT PANEL
SENS LEVEL
-
,
2 x 0
I
PLA
CONTROL
W X D W X
SWITCH
4 2 2 0
R7 1
SENS A CDNTROL L I N E
TO
1
SHEET
U22A(4)
1 I
1
+
A D J SENS
2 x 1
I
DAC A POLARITY
0
-C
POS
DAC A+/-
1
-D
NEG
R6S
R 7 0
1 8 6 0
1 9 6 0
TRIGGER LEVEL
I
'
CONTROL SWITCH
READ LEVELS
C W A R A T O R
SHEET 3
DAC A
@
-
^
2 x 0
R 1 0 7
POLARITY SWITCH
2 x 1
6 1 8 0
-
C 9 0
ZX 1
TO SHEET 3 U29C23)
--
0 1
0
~ 2 7 6 ,
R l l S A
I
PLA
1
??tO
2
-
TO CHA W
TRIGGER LEVEL A CONTROL L I N E
TO SHEET 1 U 3 0 ( 3 )
I
- n
I
V I A R 1 1 1 , R l l Z
I
+5V L I N
BUFFER
DAC A OUT
POS
6
NEG
1 -D 0 v T R I G
VOLTAGES
0
k
ADJ T R I G
DAC A NEG VOLTAGE
R 7 4
T
1
-C
DAC
5 1 1 0
R l l a C
O - D FRONT PANEL CONTROL
-
+5V L I N
I
8
A ZERO
-5 2 v
/
D A C
B
\
V O L T A G E S E L E C T I O N
, - S W I T C H I N G
I
\
I
S E N S I T I V I T Y
I
GND/-TL
I
CDNTROL SWITCH
I
SENS/-LEV
P L B
I
U Z S ( 3 5 )
A M LEV
I
SENS LEVEL
i
R 1 V I A R 2 1
Am
LEV
U Z S ( 2 S )
DAC
DAC B+/-
DAC B/FRONT PANEL
l - D O v
TRIG
1
- D
DAC
CONTROL SWITCH
0+FRDNT
PANEL CONTROL
0 -D
ADJ T R I G
U 2 9 ( 2 8 )
DAC'-FPC
DAC/-FPC
R 7 2
'ONTRoL
TO SHEET 1 U Z Z B ( 1 3 )
FRCM
-
DAC B POLARITY
0 - D POS
SHEET 3
FIB8
1 - D NEG
p, " i O
1 8 5 0
I
I
I
TRIGGER LEVEL
I
-
CONTROL SWITCH
I
1 5
v.&$cB
TO SHEET
3
U Z S ( 2 4 )
RFB
--
cs
1
DAC B
POLARITY SWITCH
- A 2 x 0
u 2 9 ( 3 0 ) - - - >
13,
(L
--
0 1
ZX 1
U Z S ( 7 )
u 3 4
m 7
4
-
6
5
'
5
6
v
1
READ LEVELS C W A R A T D R
TRIGGER LEVEL B CONTROL L I N E
TO SHEET 1 U 2 3 ( 3 )
+5V L I N
- 5 2V
( m 4
7
U N I T Y G A I N
V I A R 8 3 . 8 4
3
8
--
INVERT/NONINVERT
I c 6 0
I c 7 8
( m 2
9
BUFFER
Pas
a
NEG
I
1
1 0
DAC B NEG VOLTAGE
VOLTAGES
I
'*00
11
?
I
,
I
FRW
SHEET
3
W0+7
BUS
U 2 8 ( 8 - 1 5 )
I
-
-
- -
-
-
- -
-
-
- -
- -
- -
- -
- -
- -
- -
1. REFERENCE DESIGNATIONS W I T H I N T H I S
ASS-LY
ARE ABBREVIATED.
ADD
A S S W L Y N W E R TO ABBREVIATION
FOR CCCPLETE DESCRIPTION.
3 . A T I L D E
(.-')
PRECEDINO A SIGNAL
I N D I C A T E S A NEGATIVE-TRUE
SIGNAL
4 .
DESCRIPTION OF HP 5 3 3 4 0 A 1 MPllN BOARD A S S D g L l E S
TABLE Of ACTIVE ELEMZNTS
INTEGRATED C I R C U I T VOLTAGE
AND GROUND CONNECTIONS
REFERENCE
'IN
NUgERS
+5V L I N
I
OND
I
- 5 . 2 V
Figure 8-21. PIOAl Main
Board DAC Block
Scheiiatic Diagram (Sheet
2
of 7)
HP 5334B
-
Service Manual
8-97
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