Filter
Top Products
The HSCAN signal uses Q2 to reset the ramp. Q2 shorts the integrator and sets its output
nominally to ground.
--------m---
I
Al4 FREQUENCY
,CONTROL
ASSEMBLY
1
All
YTO
I
FRAC N
+
L
PLL
-----
J301
sll21e
A
J304
FRAC N TEST
APPROX -10
dh
60 TO 96 MHz
SAMPLER IF
-10 TO
+5
d&n
60 TO 96 MHz
(
-----
1
A7 SWITCHED LO
IDIST
AMPLIFIER
I
I
-1;
-
-
I
I
m-----I
J5 14.5 TO 18.5
dE!m
__)
1ST LO OUT
TO FRONT PANEL
J2
13 TO 16
dBn
----+
LOW BAND MIXER OUT
TO A8
J3 13 TO 16
d&n
----+
HIGH BAND MIXER OUT
TO A10
J4 -9 TO -2
d&n
---------
3 TO 6.8
GHz
SAMPLER OUT
;
TO A15
I
w34
BLACK
W32
:RAY/VIOLET
JlO
/
WHEN LOCKED, SAME
AS FRACTIONAL N
FREO
10 MHz
APPROX
OdaTl
4
J30
w37
GRAY/GREEN
600
MHz
APPROX 0
dh
TO Al3
SECOND
CONVERTER
J305
4
w49
$?I
O;!q
I
(DELETED
I
OPT’y03)
I
I
0
I
1
I
---v--J
Figure 1
l-
10. Simplified Synthesizer Section
Synthesizer Section 11-47