Motorola CP150TM User Manual
Page 211
UHF (438-470 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486348Z09-A)
12-29
6880309N62-C
June, 2005
0
5V_A
5V
5V_A
114 mV (RF)
150 mV RMS (25 kHz) (RX)
75 mV RMS (12.5 kHz) (RX)
NU
NU
2.3 V
1.5 V
3 V (UNSQ)
0.15 V (UNSQ)
145 mV RMS
200 mV RMS
7.5 V
0 V (RX)
3 V (TX)
3.5 V (UNSQ)
3.46 V RMS (RX) (0.5 W @ 24 OHMS)
3.5 V (UNSQ)
100k
10 mV RMS (TX)
1.5 V
INTERNAL SPEAKER
ACCESSORY CONNECTOR
MICROPHONE CONNECTOR
Q471
2
6
4
1
3
R497
1MEG
100K
R520
3.9K
1%
R255
C497
0.1uF
C493
1000pF
R516
C512
6.8pF
100K
R479
150K
R512
100K
R514
Q470
2
5
6
3
1
4
0.1uF
C460
R495
2
5.6K
BK1005HM471
E453
5V_A
5V_B
E451
BK1005HM471
3
2
Not_Placed:NU
.033uF
C484
Q520
1
.022uF
C455
R491
0
100K
R485
1
C459
0.1uF
R511
2.2K
100K
1uF
Not_Placed:NU
R490
C495
C496
470pF
1uF
C488
0.1uF
470pF
C489
C477
150pF
0.1uF
C470
C494
C473
C499
2.2uF
NC
3V_A
82pF
S3
S4
5
C467
1200pF
J471
M1
1
M2
2
M3
3
7
S1
S2
4
6
C452
0.1uF
6
5
7
8
4
R476
100K
5V
LM2904
U480-2
C457
0.1uF
C453
D491
0.1uF
3V
NC
E452
BK1005HM471
R487
0
R515
3V_A
Not_Placed:NU
2.2K
R484
3
2
390nH
L471
Q482
1
5V_B
NC
330K
R494
3V_A
5V_A
C519
1uF
C511
220pF
0.1uF
150pF
C474
J470-1
1
C454
R521
100K
NC
180K
R475
D471
R482
3V_A
1uF
180K
C498
R463
24K
VCC
6
R513
GND
7
INNEG
4
3
INPOS
MODE
1
OUTNEG
5
OUTPOS
8
SVR
2
Q472
2
5
6
3
1
4
U490
TDA8541
R498
C513
220pF
47K
VDDDAC
11
VDDRC
45
VDD
S
YN
27
VOX
7
D492
SQIN
9
SYN
28
TXRTN
36
TXSND
44
UIO
10
VDDA
1
VDD
C
P
32
VDDD
33
MOD
40
NC
26
PLCAP
8
25
PLCAP2
RXRTN
43
RXSND
39
SQCAP
12
SQDET
17
GNDDO
30
GNDRC
47
GNDSYN
23
HSIO
19
LCAP
24
LSIO
18
MICEXT
48
MICINT
46
GCB0
15
GCB1
14
GCB2
13
GCB3
35
GCB4
37
GCB5
38
GNDA
3
GNDD
31
CLK168
34
CSX
20
DACG
6
DACR
5
DACU
4
DATA
22
DISC
2
F1200
29
30C53
U451
AUDIO
41
AUXTN
42
CHACT
16
21
CLK
C518
0.1uF
5V_B
C514
16pF
VR471
R496
10K
0
R480
Not_Placed:NU
100K
C461
1000pF
NC
R486
C458
0.1uF
R483
180K
30K
R464
20V
MMBZ5250B
VR473
24K
R492
U510-1
LM2904
2
3
1
8
4
C462
0.1uF
680
D470
Q481
1
3
2
R473
R451
Not_Placed:NU
R472
47K
C451
680
C456
0.1uF
VR472
0.1uF
5V_B
C483
0.1uF
Not_Placed:NU
.01uF
C481
330K
R493
100K
R519
NC
220K
R518
VR475
MMBZ5245B
15V
2
R470
2.2K
J491-2
C472
0.1uF
3V
0.1uF
C464
100K
R481
NC
R474
330
Q490
2
6
4
1
3
.022uF
C476
2.2K
R478
3V_A
VR474
MMBZ5250B
20V
NC
2.2K
R471
270K
R499
R462
24K
1000pF
C465
U480-1
LM2904
2
3
1
8
4
C466
NU
U510-2
LM2904
6
5
7
8
4
R517
C482
.01uF
0.1uF
C463
C475
.022uF
2.2K
R477
NC
C471
2.2uF
2.2uF
C492
24K
R460
3V
5V
OPT_MIC
DEMOD
ASFIC_CS
BATT_CHARGE
OPT_TX_AUD_RETURN
OPT_RX_AUD_SEND_DETECTOR
LSIO
SPI_CLK
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
SQ_DET
BW_SEL
F1200
HSIO
VS_GAIN_SEL
VS_RAC
VS_AUDIO_SEL
uP_CLK
SCI
BOOT_ENA
Figure 12-23. UHF (438-470 MHz) Audio Circuitry Schematic Diagram (8486348Z09-A)