Panasonic KX-TG6511 Series - Technical Descriptions; Block Diagram (Base Unit)

7
KX-TG6511BXB/KX-TG6512BXB/KX-TG6513BXB/KX-TG6519BXB/KX-TGA651BXB
4 Technical Descriptions
4.1. Block Diagram (Base Unit)
Analog
Front
End
To TEL_LINE
Bridge
Rect D3
D3
Hook Switch
Q4,Q5
Audio
Bell/Caller ID
Interface
CPU
18 16
23
20 21
19
24
BELL
HOOK
Off-Hook Line Voltage
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
EEPROM
SCL
SDA
57
58
44
Charge Detector
(Optional)
BBIC
IC401
IC7
KX-TG6511/6512/6513/6519 BLOCK DIAGRAM (BASE UNIT)
MOD/DEMOD
Charge
Pump
43
2.5V
X
TA
L
X
1
X1
10
.3
68
M
H
z
IC801
R
X
n
R
X
p
TX
p
T
X
n
P
on
P
S
E
L
V
DD
-P
A
D
R
V
4
3
6
7
TX
on
R
X
on
D801
6
72
ANT1
ANT2
9
8
ANT1
ANT2
R
F P
A
ANT1
ANT2
78 73 74
80
L
1
L
2
2
To AC Adaptor
Limit
Resistor
CHARGE CONTACT
IC2
Q9
Q8
2.4V
Reg.
1.8V
Reg.
3.0 V
2.4 V
1.8 V
D
C
P
D
C
M
IC3