111
SCHEMATIC DIAGRAM /
原理图
NX-820
X57-824 7/10
TX-RX UNIT (X57-8240-13)
AE
AF
AG
AH
AI
Q415,416
DC/DC Converter
DC Switch(150C)
1st IF AMP
Tripler
DC Switch
(Assist)
DC Switch
(Assist)
-t
CV
ASSIST
THP1
THP1
TEMP
/PCS_RF
P_SCK1
PLL_MOD
IF_DET
DDCLK
PLD
SDO1
ASTSW
33C
FIN
50R
50R
50R
RSSI
50C
33A_2
50M
80C
L 2
4 . 7 u
.
I C 3 0 3
T K 1 0 9 3 1 V T L - G
1 OSC<B>
2 OSC<E>
3 MIXo
4 VCC
5 AMIFi
6 AMIFdecp
7 FMIFi
8 FMIFdecp1
9 FMIFdecp2
1 0 LIMo
1 1 QUADi
1 2 FMDETo
1 3
AMDETo
1 4
AMSW
1 5
RSSIo
1 6
RFAGCo
1 7
AGCAMPo
1 8
AGC
1 9
NAMPi
2 0
NAMPo
2 1
COMPi
2 2
COMPo
2 3
GND
2 4
RFin
C N 3 0 6
C N 3 0 3
.
C F 2
L 7 2 - 1 0 4 0 - 0 5
I N
o U T
G N D
X 1
L 7 7 - 3 0 7 3 - 0 5
GND1
GND2 oUTPUT
VCC
D 4 0 8
D B 2 S 3 1 0
Q 4 1 4
E M D 9
2 S A 1 8 3 2 ( G R ) F
Q 4 1 6
D 4 0 9
D B 2 S 3 1 0
2SC4738(GR)F
Q 4 1 5
.
I C 3
B D 7 5 4 2 F V M
1 o U T 1
2
3
4 V S S
5
6
7
8
VDD
L 5
.
C29
0.15u
35
.
C32
10u
20
L 1
TH1
100k
.
I C 4 0 9
NJM2878F4-33
1
CoNTRoL
2
GND
4
VIN
3
VoUT
2 S J 6 4 8 - A
.
Q 2
Over Voltage
Protection
.
D2
DZ2J091(M)
.
CP1
10
X
4
.
L 3
.
I C 2
S K Y 7 2 3 1 0 - 3 6 2
7
NC
8
OSC_AC_GND
9
OSCin
10
OSCout
11
VCC_OSC
12
GND_OSC
13
NC_1
14
NC_2
15
NC_3
16
NC_4
17
NC_5
18
NC_6
19
VCC_digital
20
DATA
21
CS
22
CLOCK
23
MODin
24
MUXout
1
VCC
2
Fin
3
Fin
4
LD/PS
5
VCCcp
6
CPout
25
GND
C F 1
L 7 2 - 1 0 1 7 - 0 5
IN
o U T
L 3 0 2
5 6 0 n
L 3 0 4
5 6 n
2 S C 5 1 0 8 ( Y ) F
Q 3 0 3
2
3
1
L309
100n
L307
2.2u
L310
2 S C 4 2 1 5 - F ( Y )
Q 3 0 5
.
Q 1
LTC014EEBFS8
C N 3 0 2
C N 3 0 4
I C 3 0 4
B U 7 4 4 5 H F V
1 I N +
2 VSS
3 I N -
4
oUT
5
VDD
.
C464
1u
.
C463
100p
.
C468
0.01u
.
C469
1u
10
C5
10p
C4
0.01u
.
C7
0.01u
C6
10p
C2
100p
C350
0.01u
C 3 2 7
0 . 1 u
.
C336
10u
10
.
C339
0.1u
.
C 3 3 0
0 . 1 u
.
C340
0.01u
.
C 3 4 5 0 . 1 u
.
C338
10u
10
.
C346
1u
.
C 3 2 6
1 0 p
C348
47p
.
C 3 3 3 0 . 1 u
.
C 3 3 2 0 . 1 u
.
C 3 0 7
0 . 1 u
C 3 1 3
0 . 1 u
.
C 3 4 3
0 . 1 u
C 3
0 . 0 1 u
.
C341
0.1u
.
C344
0.1u
.
C 3 4 7
0 . 0 1 u
.
C 3 4 2 1 u
C465
1u
C466
1u
C462
1u
.
C39
33p
.
C21
100p
.
C 2 8 1 0 0 p
.
C36
100p
C1
0.01u
.
C33
0.01u
.
C 3 1
4 7 p
.
C9
10p
.
C11
0.01u
.
C 1 9
1 0 0 p
.
C8
470p
.
C 2 6
1 0 0 p
.
C 1 7
1 0 0 p
.
C 2 3
1 0 0 p
.
C 2 0
1 0 0 p
.
C10
0.01u
.
C 2 5
1 0 0 p
.
C 2 2
0 . 1 u
.
C 1 8
1 0 0 p
.
C 1 6
1 0 0 p
.
C 3 3 4 0 . 1 u
.
C 3 3 5 0 . 1 u
.
C 3 3 7
0.1u
.
C 3 0
1 u 25
C 3 1 5
0 . 0 1 u
C 3 2 4
3 3 p
C306
0.01u
C 3 2 2
1 0 0 p
C317
100p
C 3 1 6
1 0 p
C323
150p
C325
68p
C309
10p
C 3 6 1
0 . 0 1 u
C 3 6 7
0 . 0 1 u
C368
470p
C366
0.01u
C369
0.01u
.
C 3 5 9
0 . 0 1 u
.
C 3 7 1
0 . 0 1 u
.
R430
1k
R71
100
.
R 7 2
1 k
.
R 2 8
1 0 M
.
R 3 4 4
2 . 7 k
.
R338
47k
.
R 3 3 7
1 k
.
R341
10k
.
R328
18k
.
R340
270k
.
R33
9
15k
R 3 5 0
1 0 k
.
R336
1k
.
R 3 4 2 1 0 0 k
R351
100k
.
R 3 2 6
3 3 0
.
R 3 4 3
2 2 k
R73
0
.
R 3 4 5
0
.
R 3 3 2 0
R 3 0 8
0
.
R329
10
R440
0
R432
10k
R434
10k
R433
270k
R 4 3 5
0
R 4 3 1
0
R 4 2 9
0
.
R30
180k
.
R12
68k
.
R 1 3
4 7 k
.
R 1 7
1 0 0 k
.
R31
47k
.
R23
10
.
R 2 6
1 k
.
R18
1k
.
R 2 0
0
.
R 2 4
3 9 0
.
R 1 9
0
.
R27
10k
.
R22
180
.
R 8 2 5
0
R 3 2 3
0
.
R21
47
47
.
R25
100k
.
R33
4.7k
.
R75
10
.
R 1 0
1 0
.
R16
1k
.
R15
10
.
R76
0
.
R 1 4
4 7 k
.
R390
10k
.
R324
18k
R307
560
R 3 1 5
0
R 3 0 6
3 3 0 k
R 3 0 3
1 k
R 3 5 5
0
R368
220
R379
2.2k
R381
220
.
R304
1k
.
R305
1k
R316
3.3k
R378
390k
R357
100k
R 3 5 8
3 3 k
.
C34
0.047u
.
C91
0.1u
33C
+
-
150C
- +
-
ASSIST
+
CV
PLL System
DC AMP(CV/Assist)
FM System
DC AMP(RSSI)
AVR(33C)
D408,409
DC/DC Converter
SBC2
.
R29
M E
S P +
S P -
M I C
M E
S P +
S P -
M I C
B-BUS
B-BUS
B-BUS
B-BUS
B-BUS
C351
100p
150C
150C
4.54V
4.71V
0.64V
3.3V
13.9V
3.
8
3V
3.30V
0.93V
20KHz
3.3V
Содержание NEXEDGE NX-820
Страница 122: ...NX 820 ...