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Schematic Diagrams, Overlays, and Parts Lists
: Low Band Section
4-101
G
NU
NU
NU
800 MHz only
Not placed
Not placed
EEPROM
4Kx8 BIT
Not placed
Used for Lowband Only
R453
0.1uF
SO
8
VCC
VSS
4
3
WP
C406
X25320_2.7V
U407
6
CLK
1
CS
7
HOLD
5
SI
2
0
R413
0
R475
C421
TP406
1
0.1uF
15K
R451
R455
10uF
C412
.01uF
C420
C415
R425
30K
.01uF
2.7K
1MEG
R427
.01uF
R405
C451
.022uF
C400
1
2
3
CR440
C407
47K
0.1uF
R400
0.1uF
C422
33
VDDD
11
VDDDAC
45
VDDRC
27
VDDSYN
7
VOX
9
SQIN
28
SYN
36
TXRTN
44
TXSND
10
UIO
39
URXOUT
1
VDDA
32
VDDCP
18
LSIO
48
MICEXT
46
MICINT
40
MOD
26
NC
8
PLCAP
25
PLCAP2
17
SQDET
38
GCB5
3
GNDA
31
GNDD
30
GNDD0
47
GNDRC
23
GNDSYN
19
HSIO
24
LCAP
22
DATA
2
DISC
29
F1200
15
GCB0
14
GCB1
13
GCB2
35
GCB3
37
GCB4
42
AUXTX
16
CHACT
21
CLK
34
CLK168
20
CSX
6
DACG
5
DACR
4
DACU
U404
09Z41
12
AGCCAP
41
AUDIO
43
AUXRX
0.1uF
C414
100K
R447
Q405
4
0.1uF
C479
24K
R445
C419
0.5pF
24K
R449
1uF
C452
R429
NU
10K
C416
0.1uF
A3
6
K1
3
K2
2
K3
1
CR412
A1
4
A2
5
C402
0.1uF
C430
0.1uF
0.1uF
C428
100pF
C427
68K
R407
0.1uF
C409
0
R401
4.7K
R416
C411
0.1uF
0.1uF
C401
100pF
C408
10K
R448
24K
1MEG
R402
R476
1
3
2
100pF
C405
TP410
1
Q403
C410
3
1
2
0.1uF
Q400
75K
R406
C403
10uF
SENSE
3
SHUTDOWN
6
VTAP
LP2951ACMM-3.3
U400
5
ERROR
7
FEEDBACK
4
GND
8
INPUT
1
OUTPUT
2
R456
R454
10uF
C480
100K
R452
4V_3.3V
OFF_BATT_DATA_OUT
INT_EXT_Vdd
Vddd
UNSWB+
SWB+
RESET
TX_AUD_RTN
EXT_MIC
Vdda
Vddd
BATT_CODE
BATT_DATA_IN
SQ_IN
M
CHACT
SQ_DET
LSIO
HSIO
5V
Vdda
Vdda
SYN
F1200
DATA
CLK
Vddd
MISO
EE_CS
DEMOD
VOX
MODIN
Vdda
AUDIO
FLAT_TX_RTN
16.8MHz
VS_AUDSEL
VS_GAINSEL
DACRx
EXT_SPKR_SEL
A
UDIO_PA_ENA
GREEN_LED
RED_LED
LEDBL
TX_AUD_SND
FLAT_RX_SND
INT_MIC
URX_SND
RX_AUD_RTN
CSX
2
3
1
Figure 4-74:
Low Band (29.7–42/35–50 MHz) Controller ASFIC Schematic Diagram
Содержание PR860
Страница 1: ...PR860 Two Way Portable Radio Detailed Service Manual ...
Страница 2: ......
Страница 5: ...iv Notes ...
Страница 9: ...viii Table of Contents Notes ...
Страница 13: ...Notes xii List of Figures ...
Страница 17: ...1 4 Introduction Radio Model Information Notes ...
Страница 51: ...2 34 Theory of Operation Voltage Control Oscillators VCO Notes ...
Страница 81: ...4 4 Schematic Diagrams Overlays and Parts Lists Flex Layout Notes ...
Страница 193: ...4 116 Schematic Diagrams Overlays and Parts Lists Low Band Section Notes ...
Страница 196: ......