– 23 –
– 24 –
SPP-SS955
SECTION 7
DIAGRAMS
7-1.
BLOCK DIAGRAM – BASE UNIT Section –
ASIC
IC751
VOICE SPEAKERPHONE
IC103
POWER AMP
IC104
CODEC
IC701
05
B+
B+
RXIP
RXIN
RXQP
RXQN
RXIP
DATAI
RXIN
RXQP
RXQN
16 BIT
REGISTER
16 BIT
REGISTER
MIC
AMP
LINE
AMP
CONTROL
REGISTER
TEL AMP
Q201, 202
BUFFER
Q206
AF AMP
Q203, 204
AF AMP
Q208, 209, 218
PROTECT
Q101
HOOK ON/OFF
PH103
RINGER
DETECT
PH101
BRANCH DETECT
PH102,
Q102, 103
B.P.F.
B.P.F.
DIAL MUTE
Q210
OFF HOOK MUTE
SWITCH
Q211
VBAT (FOR RX)
CN901
RFU901
RF UNIT
LNAATN
RXEN
AGC
LNAATN
RXEN
AGC
•
SIGNAL PATH
: RX
: TX
: BELL
: RX (INTERCOM)
: TX (INTERCOM)
51
MODULATOR &
FILTER
HYBRID
AMP
MIC
AMP
TX
ATTENUATOR
RX
ATTENUATOR
DIAL TONE
DETECTOR
ATTENUATOR
CONTROL CIRCUIT
LEVEL DETECTOR
MODULATOR &
FILTER
29
CDCDATAO 25
FRAME
20
CDCFRAME 32
ICLK
21
CDCICLK 28
MCLK
26
CDCMCLK 26
RESETB
25
DATAO
30
RESETO 27
CDCDATAI 24
LINE-IN
13
MICIN
11
81
OFFHOOK
37
B+
EEPROM
IC951
96
52
53
54
43
44
60
1
6
5
4
3
7
2
8
TX.DATA
TXPWR0
TXPWR1
TXEN
TXDATA
TXPWR0
Q751
Q750, 751
TX POWER
ATTENUATOR
Q750
TXPWR1
TXEN
B.P.F.
B.P.F.
BRANCH-DET
RXO
VO1
RXI
94
22
VIN
4
5
VO2
CD
8
1
VLC
13
21
HOOK ON/OFF
CONTROL
Q207
VBAT (FOR PLL)
VBAT (FOR TX)
CN902
TXRXSW
SYNDATA
SYNCLK
10
2
7
4
5
6
12
11
SYNSTB
13
SYNEN
15
REFOSC
TXRXSEL
SYNDATA
SYNCLK
SYNSTB
SYNEN
SYNTH5MCLK
14
3
49
85
80
79
82
65
71
72
75
66
NVDI
NVDO
DIALMUT
SDA
SCL
76 77
95
INTC & HOLD
CTRL
20
AFC (BEEP) 59
86
92
5
6
SPEAKER
AMP
LINE
AMP
LINEO
17
SPKPO
19
AF AMP
Q212, 213
HTI
HTO–
7
6
RLI1
26
TLI1
23
TXI
MCI
TLI2
TXO
9
8
17
RLI2
20
MCO
10
MUT
12
CD
3
11
RESET SIGNAL
GENERATOR
IC602
SPKMO
18
LINE
MJ101
D105 – 108
T101
LINE
TRANSFORMER
INTERCOM
MUTE SWITCH
Q217
INTERCOM
MUTE SWITCH
Q216
DTMF MUTE
SWITCH
Q215
DIAL MUTE
SWITCH
Q214
B+
SP101
(SPEAKER)
MIC501
MIC
RV201
SPEAKER
VOLUME
RESETI
SW951-2
SW601
RESET
T
SW951-1
DIAL MODE
T
P
ANT901
TELESCOPIC
ANTENNA
+
+
+
+
+
RINGIN
SPKEN
SP-MUT
68
D1002
LINE
KEY-OUT0 – KEY-OUT3
KEY MATRIX
S1001 – 1019
B+
36, 35, 31, 22
10 – 15
LINE-LED
CHG-HIGH RATE
+5V
REGULATOR
IC603
+5V
REGULATOR
IC601
CHARGE
CONTROL
Q651, 652, 654
CHARGE DETECT
Q653
LEVEL SHIFT
Q852
QUICK/NORMAL
CHARGE CONTROL
Q601, 655
62 87
ARTO
34
D1001
CHARGE
AUDIO SYSTEM B+
DIGITAL SYSTEM B+
CHARGE
TERMINAL
J601
DC IN 9V
–
+
PARKP
ART
–
+
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299