Motorola CP150TM User Manual
Page 83
VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)
7-29
6880309N62-C
June, 2005
2.3 V
150 mV RMS (25 kHz) (Rx)
75 mv RMS (12.5 kHz) (Rx
)
1.5 V
200 mV RMS
10 mV RMS
(Tx)
0 V (Rx)
3 V (Tx)
7.5 V
100k
3.5V (UNSQ)
3.5V (UNSQ)
0.15 V (UNSQ)
3 V (UNSQ)
1.5 V
145 mV RMS
114 mV (RF)
Supply = 7.42
1/2 Supply = 3.22
INTERNAL SPEAKER
R516
R517
0
Not Placed
Not Placed
Not Placed
3.46 V RMS (Rx)(0.5 W@24 OHMS
VHF
UHF
R513
R515
ACCESSO
RY CONNEC
TOR
DC Level 0.3 - 0.4 V l
ow
MICROPHONE
CONNEC
TOR
Not Placed
0
Not Placed
82pF
3V_A
C456
0.1uF
C499
R478
2.2K
5V_A
1uF
C498
1000pF
C493
470pF
C488
C489
470pF
NU
R516
6.8pF
C512
R513
5V
5V_B
5V_B
R471
2.2K
R483
0.1uF
C452
R481
C462
E453
BK1005HM471
0.1uF
C490
470pF
4
INNEG
INPOS
3
1
MODE
5
OUTNEG
8
OUTPOS
2
SVR
6
VC
C
5
6
3
1
4
TDA8541
U490
7
GND
Q472
2
220pF
C513
R498
100K
0.1uF
C457
R514
R523
10K
.022uF
330
R474
3V_A
C476
150K
L471
390nH
NC
R512
C455
.022uF
0
R491
D471
1uF
C496
C495
1uF
C453
4.7uF
NC
D491
C494
2.2uF
0.1uF
C483
R475
180K
R515
Q490
UMG5
2
6
4
1
3
C464
0.1uF
R484
NU
R255
1%
3.9K
5.6K
0.1uF
C477
2
R495
R486
330K
R488
R489
0.1uF
C472
R469
10
R482
BK1005HM471
E452
3V
1
R485
47K
J470-1
680
R451
R472
2
3
1
8
4
R492
24K
C497
LM2904
U510-1
R487
0.1uF
0
2
4
3
100K
R522
1
3
2
NC
Q520-2
IMX1
Q482
R494
330K
4.7uF
C461
C458
0.1uF
Q481
NU
1
3
2
3V_A
C470
0.1uF
150pF
C473
C460
0.1uF
3V
C451
0.1uF
NU
R496
R480
0
BK1005HM471
E451
NC
100K
R476
NU
5V_A
C481
R521
3V_A
20V
MMBZ5250B
VR474
A_MOD_OUT
.022uF
C475
C471
R477
2.2K
C479
2.2uF
220pF
C511
150pF
C474
150pF
1000pF
3V_A
3
NC
C465
C459
J491-3
R463
0.1uF
24K
33
VDDD
11
VDDD
AC
45
VDDRC
27
VDDSYN
7
VO
X
VR472
17
SQDET
9
SQIN
28
SYN
36
TXR
T
N
44
TXSND
10
UIO
1
VDDA
32
VDDCP
46
MICINT
40
MOD
26
NC
8
PL
CA
P
PL
CA
P
2
25
43
RXRT N
39
RXSND
12
SQ
CA
P
31
GNDD
30
GNDDO
47
GNDRC
23
GNDSYN
19
HSIO
24
LCAP
18
LSIO
48
MICEXT
29
F1200
15
GCB0
14
GCB1
13
GCB2
35
GCB3
37
GCB4
38
GCB5
3
GNDA
CLK
21
34
CLK168
20
CSX
6
DA
C
G
5
DA
C
R
4
DA
C
U
22
DAT A
2
DISC
U451
30C53
41
AUDI O
42
AUXT N
16
CHACT
1200pF
C467
VR471
5V_B
2
3
1
8
4
C466
U480-1
2
6
4
1
3
NU
NC
Q471
R499
24K
R462
C478
150pF
4
5V_A
R520
100K
5V
U480-2
6
5
7
8
Q470
2
5
6
3
1
4
R470
5V_B
2
2.2K
R497
D470
C519
5V_A
5V_B
1uF
4
S2
S3
6
5
S4
0.1uF
C454
J471
1
M1
2
M2
3
M3
S1
7
C482
NC
C463
0.1uF
C480
0.1uF
680
R473
C492
10uF
R460
24K
IMX1
Q520-1
5
1
6
C484
NU
R479
100K
R464
30K
VR473
MMBZ5250B
20V
5
7
8
4
J491-4
4
LM2904
U510-2
6
J491-1
1
R517
R511
100K
NU
R490
0.1uF
C518
2
6
4
1
3
C514
UMG5
U511
16pF
100K
R493
330K
220K
R519
NC
NC
R518
15V
MMBZ5245B
VR475
3V
5V
OPT_MIC
VS_GAIN_SE
L
DEMOD
ASFIC_CS
BATT_CHARGE
OPT_TX_AUD_RETUR
N
OPT_RX_AUD_SEND_DETEC
TOR
CH_ACT
VOX
PWR_SET
EXT_MIC_P
TT
OPT_TX_AUD_FLAT_RETUR
N
SW_B+
16_8_MHZ
MOD_OUT
RESET
OPT_RX_AUD_RETUR
N
OPT_RX_AUD_SEND_UNMUTE
D
OPT_TX_AUD_SEN
D
SPI_D
ATA_OUT
LSIO
SPI_CLK
SQ_DET
BW_SE
L
F1200
HSIO
VS_AUDIO_SE
L
uP_CLK
SCI
BOOT_ENA
Figure 7-23. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C)