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J1
to Tel_Line
A
B
BBIC
Interface
Limit
Register
VUNREG
J2
4.0V
o AC Adaptor
Reg.
4.0V
2.65V
Reg.
2.65V
Bridge
Hook
Audio
Rect
Switch
HOOK
DTXAF
DTXAF
CHARGE
CONTACT
SCL
EEPROM
6
IC1
SDA
5
TXAF
28
A/D
Speech Encoding
24
RXAF
D/A
Speech Decoding
Analog
ADPCM
Front End
Codec Filter
61
26
27
CPU
41
40
Burst Building
Burst Decoding
RF
BMC
Interface
DSP
IC2
BBIC
KX-TCD400GC/GF BLOCK DIAGRAM (BASE UNIT)
ANT1
ANT2
9
TXDA
4
33
6
RXDA
20
30
RSSI
30
11
SYRI
63
IC3
64
SYEN
6
10
RF Module
XTAL
18
10.368
MHz
16
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