– 23 –
– 24 –
SPP-ID975/ID976
4-2. BLOCK DIAGRAM — HANDSET SECTION —
64 PLL REF
DSIN
TXDATA
ADIN2
GPIO2/MON2
GPIO5/TST1
APO
AON
RINGER
AIN
P1.1
P6.0
P6.1
P6.2
P1.5
P6.3
P1.7
P5.0
P5.4
P1.6
55
63 SCLK
62 SOUT
59 SIN
48 XTAL2
49 XTAL1
56 GPIO4/TST0
GPIO3/MON3
57
80
3
11
ADIN1
13 P1.2
14 P1.3
15 P1.4
2 DVCC1
AVCC1
78
76 REG CTRL
11 P1.0
67
68
79
58
1
4
10
5
9
PLL REF
RX AUDIO
TX DATA
RSSI
PLL EN
8
SER DATA OUT
7
SER CLK
3
RX PWR
CS
SK
DI
DO
RF UNIT (HS)
1
2
3
4
EEPROM
U1006
11
TX PWR
3.1V
3.6V
POWER
CONTROL
Q1004
REG
Q1010,1012
CHARGE DET
Q1008
RF POWER
CONTROL
Q1007
RF POWER
CONTROL
Q1006
REG
U1007
H
S103
VOL
M
L
X1001
18.4MHz
83
84
86
90
4
12
5
13
6
14
16
10
17
18
9
8
LCD DB4
LCD DB5
LCD DB6
LCD DB7
LCD E
LCD R/W
LCD RS
LCD1001
LCD MODULE
30
I
34
35
I
39
KEY MATRIX
S1023-S1044
ROW0-ROW4
COL0-COL4
RINGER OUT
Q1009
12
LED DRIVE
Q1002
(LCD/KEY PAD BACK-LIGHT)
U1002
BUZZER
U1005
SPEAKER
U1003
MIC
ANT1001
HELICAL ANTENNA
SYSTEM CONTROL
IC1001
I
P4.0
P4.4
I
RECHARGEABLE
BATTERY
BP-T23
DC 3.6V
CHARGE
TERMINAL
04
J1001
J1002
J1003
J1004
S102
(ROTARY ENCODER)
D1003,1004
• Signal Path
: TX (To Tel Line)
: RX (From Tel Line)
: bell
Summary of Contents for SPP-ID975 - Cordless Telephone
Page 3: ... 3 SECTION 1 GENERAL This section is extracted from SPP ID975 s instruction manual ...
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Page 27: ...SPP ID975 ID976 4 7 SCHEMATIC DIAGRAM BASE KEY SECTION 35 36 Page 27 ...