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SPEAKER
EARPIECE
0
HEADSET
0
J6
J3
CHARGE
CHARGE
CIRCUIT
CONTACTS
J4
J1
BATTERY
SWITCHED
TERMINAL
SUPPLY
J2
2.65V
Reg.
LCD
DISPLAY
Amplifier
SP_CTR
Speaker
Buffer
MIC
SP_CTR
CHARGE
SENSE
8
SUPEEP
EEPROM
SCL
6
IC2
5
SDA
VDDBAT
SENSE
SWITCH
A0..
3.8V
ADDRESS
A17
Flash
D0..
PROM
DATA
D7
IC3
CTRL
30
2.65V
INH/RS
0
CS/CE
0
DISCLK
0
DISDATA
0
J7
44
RX-AF
D/A
Speech Decoding
TX-AF
41
A/D
Speech Encoding
Analog
Front
End
93
78
49
63
65
64
CPU
35
26
24
85
80
87
88
89
Burst Decoding
Burst Encoding
ADPCM
Codec
Filter
DSP
BMC
PMB6723
IC1
ANT
37
RXDA
14
RF
TXDA
10
Section
RSSI
47
RF
SYRI
21
Inter-
SYEN
face
11
XTAL
32
10.368
MHz
30
ON SWITCH
28
ROWS
KEYPAD
COLUMNS
90
GREEN LED
KEYPAD LED
79
RED LED
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