Kirisun DP485 User Manual

DP485 Service Manual
66
TO ANT
Q503
L2SC3356
Q501
RD01
C536
1000P
C526
1000P
C532
470P
C512
33P
C518
20P
C527
4700P
C528 470P
C529
10nF
D500
RN142S
C522
470P
C538
470P
R503
6.8K
R511
22Ω
R506
NC
R504
0Ω
R507
1.5K
R512
15K
R513
47K
R500
47Ω
R508
47K
R509
56K
C530
470P
C531
470P
C524
NC
C535
470P
C521
33P
C520
6P
C525
NC
L511
22nH
L510
0Ω
L506 5T
L504
2.7nH
L500 3T L501
3T
L502
4T
L503
3T
L513 56Ω
L514
BLM21P300S
L512 BLM21P300S C500
NC
C501 30P C502 8P
C507 15P
C508 NC
C509
8P
C510
68P
C513
2.5P
C514
2P
C515
5P
C516
5P
C517
7P
C505
2P
C504
2P
C503
3P
C511
120P
C534
2.5P
D501
RN142S
L507 8T
D502
1SS390
D503
1SS390
L508
220nH
L505
4T
C537
470P
C533
470P
1
AVDD
2
SCLK
3
SDIO
4
AVDD
5
XTAL1
6
XTAL2
7
MODE
8
SENB
9
AFOUT
10
NC
11
MIC_IN
12
CC
13
AVDD
14
NC
15
RFIN
16
AVDD
17
NC
18
RFOUT
19
NC
20
NC
21
AVDD
22
PABIAS
23
AVDD
24
PDN
GPIO7
25
GPIO6
26
GPIO5
27
GPIO4
28
GPIO3
29
GPIO2
30
GPIO1
31
GPIO0
32
33
GND
U500
AT1846S
L515
BLM11A601S
R544
1K
R545
1K
R542
15K
R547
1K
R539
1K
R541
47K
R540
47K
R552
NC
C564
470P
C569
0Ω
C577
0Ω
C573
1000P
C561
6P
C559
470P
1
VC
2
GND
VCC
4
OUT
3
X500
12.8MHz
L520
470P
R562
4.7K
R561
4.7K
C583
33nF
R563
NC
C580
NC
C579
NC
R559
10Ω
C581
1000P
C584
22nF
R560
1K
C582
10uF
L521
BLM11A601S
C554
470P
C553
470P
C551
470P
C550
470P
C549
470P
C565
470P
R556
NC
C571
NC
R555
0Ω
C570
0Ω
R558
47K
R557
47K
C578
560Ω
R501
47K
R502
1K
R510
33Ω
C523
470P
C519
470P
Q502
2SC5108
L509
22nH
NC
C543
NC
C546
NC
C545
8.2nF
C547
15nF
C541 470P
C539 10nF C540 10nF
R516
0Ω
R531
NC
R529
20K
R526
100K
R521
0.39Ω
R527
100K
R519
0Ω
R518
150K
R525
150K
R528
100K
R517
2.2M
C544
2
A-IN
R520
0.39Ω
R522
0.39Ω
R523
0.39Ω
1
AOUT
3
A+IN
4
GND
5
B+IN
6
B-IN
7
BOUT
8
V+
IC500
NJM2904V
R515
270Ω
CN500
C560
47P
C558
47P
R551
1K
L3 15NH
L4
NC
L5
18NH
L6
0Ω
R6
1K
1
2
34
5
U301
UMC4
L33
0Ω
R10
1K
R16
NC
C36
270P
C37 NC
C40
47nF
R8
33K
C506
NC
R39
4.7K
R9
0Ω
R42
220K
Q4
DTC144EE
C4
NC
R12
10K
L29
8.2nH
C106
10uF
C107
470P
C62
NC
NC
NC
C83
NC
C84
NC
C87
NC
L45
NC
C88
NC
NC
C89
NC
C90
NC
C63
NC
C68
NC
D20
NC
C73
0Ω
C74
NC
C91
10uF
C131
NC
L40
NC
Q500
RD07MUS2B
R95
NC
R505
270Ω
RF_4V2
SPI_/CS
RDA_PDN
RDA_SQL
RF_TX_OUT
MOD_RDA1846
VCCN
SPI_CLK
SPI_DA_OUT
RF_TX_OUT
B+
5T
AF_RX
APC
5TC
APC_SW2
3C
GPSRF

Kirisun DP485 Specifications

General

Frequency	136~174 MHz, 400~470 MHz
Channel Capacity	256 channels
Channel Spacing	25 kHz/12.5kHz
Antenna Impedance	50Ω
Operating Voltage	7.4V
Rated Power	1W 16Ω
Transmitting Power	4W/1W@7.4V DC
Current Consumption	≤1.5A@ 7.4V DC
Working Temperature	-25℃~ +55℃
Microphone Impedance	2.2kΩ
Battery	Lithium-ion battery DC 7.4V , 2000mAh
Receiving Sensitivity (12dB SINAD )	-120dBm
Squelch Sensitivity (3-level)	≤-120dBm
Selectivity of Adjacent Channels	70dB@25KHz /60dB@12.5KHz
Intermodulation Immunity	65dB@25KHz/12.5 KHz
Blocking	84dB
Frequency Stability	≤±2.5ppm
Maximum Modulation Offset	±5kHz@25KHz /±2.5kHz@12.5KHz
Modulation Distortion	≤3%
Spurious Emission	≤-36dBm