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TDMA StarTAC
Power Step
TX On
TX Off
.081V
3.53V
D
0V 2.79V
I
Q505
page B21
R403
F
page B13
A_D
Q811
page B15
U110
page B7
Q15
page B5
BATT_SAV
Q1831
page B5
TX_STEP
E
Q501,Q503
FE_EN
J
page B19
R1831
I
page B5
QMOD_KEY
Q1501
page B27
TX_EN_B
D
U1700-60
page B35
TX_2.75
page B25
INTEG_EN
U1900
page B37
R10014
RX On RX Off
C1802
2.7V
0V
J
Analog Digital
0V
2.82V
R1801
F
C
RF_DET
CR502
page B19
DEMOD
U110
page B7
ZIF_SYN_VREF
U110
page B7
RX_I
U110
page B7
RX_Q
U110
page B7
TM
P8190:
DCI(U1800)
3
4
5
6
2
1.7V 1.39V 1.16V .98V .86V .77V
B
.946V .66V .46V .321V 1.18V .806V
C
2.8V 2.76V 2.75V 2.75V .055V .054V
E
H
.112V .095V .083V .078V .076V .075V
K
12
11
10
9
13
14
U1800
15
16
17
18
19
3V DCI
20
21
22
23
24
25
27
28
26
R1810
7
This manual is Motorola property. Copying or
distribution strictly prohibited without prior written
consent from Motorola and must be returned upon
Motorola's request.
Motorola Confidential Proprietary
C1803
8
7
6
5
4
3
2
1
Sleep Mode On
48
47
46
45
44
43
42
41
40
39
38
37
R1800
29
31
32
34
35
30
33
36
C1800
Channel: 385
RX SIGNAL
TX SIGNAL
VOLTAGE SUPPLIES
Colored boxes represent the area in
which the components are placed.
B+ Supply <4.6V >4.6V
G
2.7V
0V
G
LOAD_SW
0.6Vpp
19.44MHz
Off
2.7V
0V
K
RESET
C1805
C1804
TX_QX
R1804
H
AGC_STEP
RX Input
-20
-80
A
2.36V 1.43V .39V
A
AGC_RSSI
B
AOC_CNTL
Q820
SS1
page B21
U1000
page B39
CLK
U1000
page B39
MOSI
U1000
page B39
C153
page B33
MISO
U1000
page B39
IRQ
U1000
TX
page B39
U1900
page B37
RX
U1900
page B37
FS
U1900
SCLK
page B37
U1900
page B37
U1000
page B39
RX_2.75V
page B25
2.75V
page B25
TX_Q
U301
page B13
U301
page B13
FM
C306
TX_I
page B11
U301
TX_IX
page B13
U301
page B13
U110
page B7
-116
REF_2.75V
page B25
U110
page B7
R342
page B13
AFC
U150
page B33
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