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• IC Block Diagrams
U1 U2765B-AFSG3 (BASE RF Board)
U1 U2765B-AFSG3 (HAND RF Board)
VCC/2
COMPARATOR
SLICER
LOCAL OSC
BUFFER
VCC2
LO REF
LO IN
GND2
NC
VCC3
LIM1 OUT
GND3
LIM2 IN
LIM2 REF
GND4
DEM NT
ANK
DEM T
ANK
DEM OUT
NC
A1 REF
A1 IN
GND1
MIX OUT
VCC1
MIX NOUT
LIM1 REF
LIM1 IN
RSSI
DA
TA
OUT
COM NIN
COM IN
SL IN
1
2
3
4 5 6 7
8
9
10
11
12
13
14
28
27 26
25 24 23
22
21 20 19 18
17 16
15
A1
MIX
LIMITER
AMP
LIMITER
AMP
DE-
MODULATOR
RSSI
+
–
+
–
U2 TB31202BFN-EL (HAND RF Board)
U10 TB31202BFN-EL (BASE RF Board)
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
BUF
BUF
PROGRAMABLE
DIVIDER
PHASE
COMPARATOR
OUTPUT
SWITCH
L. OSC
REFERENCE
DIVIDER
LOCK
DET
CONTROL
CIRCUIT
1/2
1/2
1/2
BUF
1
––––––––
32, 33
1
––––––––
32, 33
PHASE
COMPARATOR
OUTPUT
PROGRAMABLE
DIVIDER
FIN1
VCC
CP1
GND
LD
CK
D
ATA
STB
FIN2
VCC
CP2
GND
SW
XIN
XOUT
BO
Summary of Contents for spp901
Page 1: ...MICROFILM SERVICE MANUAL CORDLESS TELEPHONE Canadian Model SPECIFICATIONS SPP 901 ...
Page 2: ...SPP 901 19 20 5 5 SCHEMATIC DIAGRAM BASE RF Board See page 29 for IC Block Diagrams Page 21 ...
Page 4: ...SPP 901 23 24 5 7 SCHEMATIC DIAGRAM HAND RF Board See page 29 for IC Block Diagrams Page 26 ...
