Motorola CP150TM User Manual
Page 67
VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)
7-13
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
ACCESSORY CONNECTOR
DC Level 0.3 - 0.4 V low
MICROPHONE CONNECTOR
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
VCC
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
2.2K
Not_Placed: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
Not_Placed:NU
1
3
2
3V_A
C470
0.1uF
150pF
C473
C460
0.1uF
3V
C451
0.1uF
10K
R496
Not_Placed:NU
R480
0
BK1005HM471
E451
NC
100K
R476
.01uF
Not_Placed: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
VDDDAC
45
VDDRC
27
VDDSYN
7
VOX
VR472
17
SQDET
9
SQIN
28
SYN
36
TXRTN
44
TXSND
10
UIO
1
VDDA
32
VDDCP
46
MICINT
40
MOD
26
NC
8
PLCAP
PLCAP2
25
43
RXRTN
39
RXSND
12
SQCAP
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
DACG
5
DACR
4
DACU
22
DATA
2
DISC
U451
30C53
41
AUDIO
42
AUXTN
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
.033uF
Not_Placed: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
2.2K
R490
Not_Placed:NU
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_SEL
DEMOD
ASFIC_CS
BATT_CHARGE
OPT_TX_AUD_RETURN
OPT_RX_AUD_SEND_DETECTOR
CH_ACT
VOX
PWR_SET
EXT_MIC_PTT
OPT_TX_AUD_FLAT_RETURN
SW_B+
16_8_MHZ
MOD_OUT
RESET
OPT_RX_AUD_RETURN
OPT_RX_AUD_SEND_UNMUTED
OPT_TX_AUD_SEND
SPI_DATA_OUT
LSIO
SPI_CLK
SQ_DET
BW_SEL
F1200
HSIO
VS_AUDIO_SEL
uP_CLK
SCI
BOOT_ENA
Figure 7-11. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z02-A)