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6
3.1.3.
Block Diagram (Handset)
[Changed from original section "4.3. Block Diagram (Handset)"]
E a r p i e s e
( S p e a k e r )
A n a l o g
F r o n t
E n d
D S P
R F
C P U
X T A L
2 0 . 7 3 6 M H z
X101
E E P R O M
( I C 1 0 2 )
B A T T E R Y
C O S I C
C h a r g e +
C h a r g e -
R e g u l a t o r
3 . 3 V
HO1P
HO1N
MICP
MICN
CDT
C h a r g e
c i r c u i t
S C L K
D A T A
I2CLK
I2DAT
M I C
K E Y P A D
O N S W I T C H
R I N G E R
3 . 3 V
R102
C H A R G E
C H A R G E
C H
A R
G E
START
L C D
3 . 3 V
V D D B A T
V D D D C D C
Q 1 0 3
VDDBAT
VDDBAT
Q101/102
VDDBAT
ANT1
SDRV
M A D 4 P
32
IC103
IC101
KX-TGA161 BLOCK DIAGRAM (HANDSET)
BZ2
Q105
Q104
RF_PART
Pox
RxI
RxIx
Rxon
Txon
XTAL
LOAD
D107
VDDB
ONSW
TxD
P1.1
Po
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