SPP-S2720
26
26
14
–
18
20, 21, 24
–
26
ROW2
–
ROW6
COL 1
–
COL 5
45 SS PWR DOWN CONT
46 SS RESET
47 SS SPI EN
1 SS SPI CLK
63 SS SPI DOUT
64 SS SPI DIN
52 SS IRQ
38 E2PROM SDA
37 E2PROM SCL
12 JOG PUSH
22 JOG A
23 JOG B
7
LED CONT (KEY)
49
WDT
8
LED CONT (LCD)
6
RING OUTPUT
30
BUZZER VOL
34
INTERCOM CONT
42
RX MUTE
44
CODEC RESET
43
TX MUTE
58
CF2
57
CF1
2 LCD SDA
3 LCD CS
4 LCD SCL
19 LCD RS
53
RESET
48
DIS CHG (WAKE UP)
50
WAKE UP
5
CHARGE CONT
61
CHARGE DET
51
BATT POWER FAIL
31
LOW BATT DET
27
SS AMP POWER CONT
29
SS POWER CONT (TALK)
28
SS POWER CONT (STB)
SYSTEM CONTROLLER
IC121
ANT201
(ANTENNA)
JOG1
(JOG DIAL)
EEPROM
IC122
COL1, COL2,
COL3 – COL5
ROW2 – ROW6
K2 – K5, K7 – K21,
S11, S16
LCD201
LIQUID
CRYSTAL
DISPLAY
PANEL
X121
6MHz
ADPCM
L. P. F.
PCM
EXPANDER
D/A
CONVERTER
B. P. F.
PCM
COMPRESSOR
A/D
CONVERTER
TX
MUTING
Q2
ATTENUATOR
Q3
AF AMP
IC2
MIC AMP
Q5
RX
MUTING
Q4
SP1
(SPEAKER)
MIC1
(MIC)
H
M
L
S1
VOL
BUZZER DRIVE
Q101
BZ101
BUZZER
D122 – 124
(LCD BACK LIGHT)
LED
DRIVE
Q121
D125 – 128
(KEY BACK LIGHT)
LED
DRIVE
Q122
RF UNIT
(RF61) B+
CLOCK GENERATOR
(IC3) B+
B+ SWITCH
Q61
B+ SWITCH
Q1
AF AMP
(IC2) B+
B+ SWITCH
Q6
+3.3V
REGULATOR
IC101, Q103
LOW BATTERY
DETECT
IC102
WD
TIMER
C127,
R137
L1
SYSTEM CONTROLLER (IC121),
EEPROM (IC122) B+
CODEC
(IC1) B+
+
–
CHARGE
TERMINAL
RECHARGEABLE
BATTERY PACK
(BP-T38)
DC3.6V
900mAh
CHARGE
CURRENT
CONTROL
Q102
D102
CHARGE
CONTROL
Q7
CHARGE
DETECT
Q104
CHARGE DETECT
WAKE-UP
Q105
INTERMITTENT
SCAN TIMER
C126,
R136
RESET
SIGNAL
GENERATOR
IC123
CLOCK
GENERATOR
IC3
X31
10.368MHz
Ref No.
K2
K3
K4
K5
K7
K8
K9
K10
K11
K12
K13
K14
K15
K16
K17
K18
K19
K20
K21
S11
S16
PANEL DESIGNATION
CALL WAITING/FLASH
REDIAL/PAUSE
INTERCOM
PGM
EZ ACCESS
HOLD
ERASE
1
4 GHI
7 PQRS
TONE
2 ABC
5 JKL
8 TUV
0 OPER
3 DEF
6 MNO
9 WXYZ
#
TALK
OFF
8 ANT
13
RXAD PCM
15
PCMB CLK
14
PCM SYNC
12
TXAD PCM
17
POW DWN
18
RESET B
19
SPI EN
20
SPI CLK
22
SPI IN
23
SPI OUT
11
IRQ CAP
24
IR
29 BCLK
28 SYNC
25
IS
23
PCMRO
26
PCMSI
22
PCMRI
27
PCMSO
CODEC
IC1
11
VFRO
3
AIN–
15
PDN
20
MCK
5
6
SDA
SCL
PUSH
A
B
SDA
CS
SCL
LCD RS
RESET
RF61
RF UNIT
I
J1
•
SIGNAL PATH
: RX
: TX
: BELL
S2
PUSH ENTER
6-2.
BLOCK DIAGRAM – HANDSET Section –
Содержание SPP-S2720
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