7
KX-TG6611CXB/KX-TG6611CXS/KX-TG6612CXB/KX-TG6612CXS/KX-TGA661CXB/KX-TGA661CXS
4 Technical Descriptions
4.1.
Block Diagram (Base Unit)
Analog
Front
End
To TEL_LINE
Bridge
Rect
D
3
D
3
Hook Switch
Q
3
,Q4,Q5
Q
3
,Q
4
,Q
5
Audio
Bell/Caller ID
Interface
CPU
21
2
3
15
17
19
20
14
BELL
HOOK
Off-Hook Line Voltage
1
3
A/D
D/A
ADPCM
Codec Filter
DSP
Speech Encoding
Speech Decoding
BMC
Burst Encoding
Burst Decoding
RF
PLL
5
2
79
9
10
EEPROM
SCL
SDA
45
58
59
To AC Adaptor
To HANDSET
Limit
Resistor
Charge
Detector
Power Failer Mode
Power Supply SW
Q
3
51,IC
3
51
)
CHARGE(-)
Optional
Optional
DC/DC convertorD
C
/D
C
c
o
n
v
e
rt
o
r
IC2,L
3
,C
3
6,Q602
IC
2
,L
3
,C
3
6
,Q
6
0
2
Q9Q
9
Q8Q
8
2.4V
Reg.
1.8V
Reg.
2.85 V
2.4 V
1.8 V
BBIC
IC401
IC7
KX-TG6611/6612 BLOCK DIA
GRAM
(BASE UNIT)
MOD/DEMOD
Charge
Pump
DCDC
Converter
44
XTAL
X1X
1
10.
3
68
MHz
RX
n
RX
p
TX
p
TX
n
TX
on
RX
on
D801
6
72
ANT1
ANT2
ANT1
ANT2
ANT1
ANT2
78
80
L1
L2
DCP
DCM
3
FLASH MEMORY
IC421
QSPI
FLASH MEMORY
IC4
3
1
4
3
3
.0V
3
.0V
70
71
72
69
TAM-CSn
SPI-DI
SPI-DO
SPICLK
QSPI-CS
DC,DCI
DC-CTRL
DC-SENSE
QSPI-SCK
QSPI-IO 0-
3
90,92,
94,96
Q22,Q2
3
R55,R56,
D22
91
95
8
3
82
84
QSPI
Control