7
KX-TG6511TRB/KX-TG6511TRM/KX-TGA650EXB/KX-TGA650EXM/KX-TGA651EXB/KX-TGA651EXM
4 Technical Descriptions
4.1.
Block Diagram (Base Unit)
Analog
F
ront
End
T
o
TEL_LINE
Br
idge
Rect
D
D
3
Hook Switch
Q4,Q
Q4,Q
5
A
udio
Bell/Caller ID
Interf
ace
CPU
18
16
23
20
21
19
24
BELL
HOOK
Off-Hook Line
V
oltage
25
A/D
D/A
ADPCM
Codec Filter
DSP
Speech Encoding
Speech Decoding
BMC
Burst Encoding
Burst Decoding
RF
PLL
5
3
77
75
9
10
EEPR
OM
SCL
SD
A
57
58
44
Charge
Detector
(Optional)
BBIC
IC401
IC7
KX-TG6511 BLOCK DIA
GRAM
(BASE UNIT)
MOD/DEMOD
Charge
Pump
43
2.5V
XT
AL
X
1
10.368
MHz
IC801
RX
n
RX
p
TX
p
TX
n
P
on
PSEL
V
DD
-P
ADR
V
4
3
6
7
TX
on
RX
on
D801
6
72
ANT1
ANT2
9
8
ANT1
ANT2
RF P
A
ANT1
ANT2
78
73
74
80
L1
L2
2
T
o
A
C
Adaptor
Limit
Resistor
CHARGE
CONT
A
C
T
IC
2
Q
9
Q
8
2.4V
Reg.
1.8V
Reg.
3.0 V
2.4 V
1.8 V
DCP
DCM
IC
3