SPP-S2720
25
25
I/O
CONTROL
SWITCH
MULTIPLEXOR
GAIN
CONTROL
Q107
TEL AMP
Q106
TEL LINE
B+ SWITCH
Q105
+5V
T101
DC LOOP
FILTER
Q104
RELAY
DRIVE
Q101
BRANCH DETECT
PH102, Q102, 103
EEPROM
IC303
RESET SIGNAL
GENERATOR
IC302
RESET
D302
M-DVDD
(IC301, 303)
D753
NEW CALL
D754
VOICE MAIL
IN USE
D752
CHARGE LED
DRIVE
Q251
+12V
(RY101 B+)
+3.3V
(RF271 B+)
D201
DC IN 9V
–
+
J201
LINE
MJ101
F101
RINGER
DETECT
PH101
+
–
CHARGE
TERMINAL
CHARGE
CONTROL
Q252, 253
ANT102
(SUB ANTENNA)
22
SPI OUT
21
SPI IN
19
SPI CLK
18
SPI EN
10
IRQ CAP
16
POW DWN
3
ANT B CONT
4
ANT A CONT
17
RESET B
7
ANT A
12
RXAD PCM
11
TXAD PCM
13
PCM SYNC
14
PCMB CLK
RF271
RF UNIT
DIN
DOUT
CLK
EN
IRQ
POWER DOWN
ANT B
ANT A
SS RESET
71
(DL0)
72
(DL1)
69
(SCLK)
70
(FSYNO)
47
MIN
10
AGPIO14
DSP
IC402
33
SPOUTIN
32
SPOUTP
45
35
HSOUT
76
DGPIO15
HMIN
44
HMGS
79
DGPIO12
78
DGPIO13
53
XOUT
54
XIN
X401
4.096MHz
56
RSTN
34 DSP RESET
2 SO1
3 SI1
4 SCK1
19 P20
43 ANTENNA SEKECT A
46 SS RESET
45 SS PWR DOWN CONT
42 ANTENNA SEKECT B
47 SS SPI EN
52 SS IRQ
63 SS SPI DOUT
64 SS SPI DIN
1
SS SPI CLK
DIN
DOUT
CLK
EN
IRQ
POWER DOWN
ANT B
ANT A
SS RESET
53
RESET
41
LED (NEW CALL)
44
LED (VMWI)
40
LED (IN-USE)
51
AC POWER FAIL
27
29 DSP CSN
30 DSP ACKN
28 DSP HRNW
32 DSP SDL
31 DSP SDO
33 DSP PWR DOWN
58 CF2
57 CF1
X301
6MHz
27
60
HCSN1
30
ACKN
26
SHRNW
25
SHDO
29
SHDI
57
PDN
SHSC
DSP SC
61
BR DET (OFF-OFF)
6
OFF HOOK CONT
60
BR DET
(ON-ON/OFF)
50
RING DET
38
E2PROM SDA
37
E2PROM SCL
SYSTEM CONTROLLER
IC301
36
L OUT
77
DGPIO14
38
LIN
41
CIDIN
42
CIDIP
5
SDA
6
SCL
RING DET
OFF/OFF
ON/OFF
•
SIGNAL PATH
: RX
: TX
: BELL
D107 – 110
RY101
ANT101
(MAIN ANTENNA)
BRANCH DETECT
IC102
CHARGE
D751
+5V
(IC402 B+)
VOLTAGE
DETECT
Q301
25
COL4
15
ROW3
HANDSET
LOCATOR
S302
S751
+5V
REGULATOR
IC202
+3.3V
REGULATOR
IC201
MAIN ANTENNA
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – BASE UNIT Section –
Содержание SPP-S2720
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