Fig. 2(a) --- A1 LAYOUT
COMPONENT
VALUE
PURPOSE
R1
20 ohms
INPUT BIAS CURRENT
R2 (P4)
FS (once) (sec. 5.3.4)
A1 GAIN SELECT
R3
FS (once) 3-5 Meg; 7.3.1
HIGH-POWER UNDERSHOOT CORR.
R4 (P1)
FS (100k pot)
A1 DC TRIM
R13 (P7)
FS (once) (15 - 20k)
LINEAR EXTENSION
RT1
FS; 50k pot, sec. 8.3.3-4 A1
TEMP COMP
RS1
2k (sec. 5.2, 5.3.1)
REGULATOR DESENSITIZER
RS2
2k (sec. 5.2, 5.3.1)
REGULATOR DESENSITIZER
RS3 (P6)
FS (once); 10k pot, 5.3.6
REGULATOR DESENSITIZER
RR1A
FS (once) (>5k)
RECOVERY (See sec. 7.3.1 -
RR1B (P
t
)
FS (once) (500k pot)
"
7.3.2; type 1 net
RR1C (P
s
)
FS (once) (1M-ohm pot)
"
repeat parallel
CR1
FS (once) (sec. 7.3.2)
"
nets as needed.)
C1
FS (once) >1 nF; sec 2.2;
NOISE REDUCTION (not used)
C2
FS (once) 1-5 pF; "
DETECTOR INPUT CAP COMP.
C3
10 - 150 nF
A1 DECOUPLE
C4
39 pF (sec. 2.2, 6.7)
A1 COMPENSATION
C5A
FS (once) 12-27 pF; 7.3.1
HIGH POWER UNDERSHOOT CORR.
NOTE: FS = Factory Select; (the correct component value must be ascertained for each
replicated unit).
FS (once) = The correct component value needs to be factory- selected only once for a given
layout; subsequent units will use the same component value (assuming reasonable detector
matching).
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