HP 8112A Operating, Programming And Servicing Manual page 182

1 0. 1 -2 Instrument Overview and Troubleshooting Guide
Slope IC
Shaper IC
The ICs and their supporting circuits are covered in more detail in
the relevant parts of the later chapters, however, the IC pin identities
are given in Figure 10. 1-2.
VIEH
TOP
fffl l. . . l
24
5Ir£ ADJ. SEE
NOTE
l
23
HOOC 2 2
i..F DC
22
HOOC
GNO
ADJUST 2 1
mm
20
LB
L9
L7
Ii'f'UT
NOD ADJUST 2
I REF L6
L4
NORM/CQtoP L0
LS
L
L L
LF If\A.JT
HOD ADJUST 1 3 L2
I C
SHAPER
TRIGGER POS
GATE/TRIGGER
CON Ef'J=IBLE
TRIGGER IN
a..R REN T
Figure 10.1-2. Custom ICs used in the HP 8 1 1 �A
This is used as a pulse generator up to 50
MHz, with the output either continuous,
gated or triggered. It is also used as a burst
generator.
This is used as a linear preamplifier and
final output pulse shaper.
T D ADJUST TRIGGER GATE
vcc
VEE ERROR CXJT
OOT
TRIGGER OUT
GND
OUT
OUT
GAIN CELL ADJUST
VERNI ER ADJUST
VERNI ER lf\PUT
I
BIAS 2 SCH1 HI
BIAS SCH1 LO
EEQ If\PUT FL...K: / SLOPE
VIEH
TOP
1 3
L2 TRIGGER t-.EG
1 1
1 4 1 11'£/RATE
RfNGE c
1 0
1 5 MOOC I N
RfNGE 8
VEE 1 6
1 7
GND
1 8 RfNGE A
- I N 1 9 GND
T li'£ IN
20 Rfff'
FREQ 2 1 OOT
IN
�T ON 22 OUT
L
ERROR OUT 23 EXT C l
SEE
REF NOTE EXT
24
T I M ING IC
TOP VIE_,
l
24 TRIGGER IN
SEE
NOTE
+5V
2 BLRST ON
23
22 I Ol'-I REF
ll.F
2 1 GNOX
GND 20 REF
1 8 s"-
1 9
OUT+ SW+
OUT-
S V
BIAS 1 7 2 I [J<
-
1 6
2 RFH'
.
l l PH'lSE
1 5 1 0 EXT/INT
Ftf>
1 4
1
1 3 2 Ir-A.JT
VCO IC
NOTE:
OF
P I N NO l IOCNTIFIED ON
LNOCRSIIE IC BY DOT
C2