Panasonic KX-TG9471B

11
KX-TG9471B/KX-TG9472B/KX-TGA939T
4.3. Block Diagram (Portable)
SPEAKER
RECEIVER
MIC
CHARGE CIRCUIT Q4, Q9, R7
Q4, Q9, R7
CHARGE CONTACTS
CHARGE(+) CHARGE(-)
CHARGE HANDSET-DET
CHARGE DETECT
EEPROM
SCL
SDA
BATTERY TERMINAL
D7
VBAT
J1
J2
1.8 V
Q2
Q2
1.8 V
LCD
CD
RESET
CSB SDA
SCL
CPU
Analog
Front
End
D/A A/D
33 35
15 16
19 20 18 20
31 32 57 58
WP
53
36 40
13
43 42
63 54 55 66
ADPCM
Codec
Filter
DSP
Speech
Decoding
Speech
Encoding
BMC
Burst
Decoding
RF PA
IC801
Burst
Encoding
RF
PLL
MOD/DEMOD
ANT1 ANT2
5 3
4 3 6 78
9
6
2
77 78
75
RXn
RXon
D802
ANT1
D801
RXp
TXp TXn Pon PSEL TXoh
VDD-PADRY
9
10
XTAL
X1
10.368 MHz
BATTERY
44
TALK OFF
KEYPAD
Charge
Pump
ROWS
COLUMNS
CP2.5V CP4.0V
27, 49, 50, 51
22, 23, 24, 25, 26
BBIC
IC1
IC3
56
LCD-BACK LIGHT
KEY LED BELL LED
65 52 68
KX-TGA939 BLOCK DIAGRAM
(
PORTABLE
)
73 74 80
72
ANT2
ANT2
1 2 3 4 5