73
SCHEMATIC DIAGRAM
NX-720H(G)/720H
X57-823 7/10
TX-RX UNIT (X57-8230-10)
AE
AF
AG
AH
AI
-t
CV
ASSIST
TEMP
/PCS_RF
P_SCK1
PLL_MOD
DDCLK
PLD
SDO1
ASTSW
50R
33A_2
50R
50C
THP1
RSSI
/T_R
THP1
/T_R
FIN
33C
IF_DET
50R
50M
80C
SBC2
L2
4.7u
.
IC303
TK10
9
31VTL-G
1 OSC<B>
2 OSC<E>
3 MIXo
4 VCC
5 AMIFi
6 AMIFdecp
7 FMIFi
8 FMIFdecp1
9
FMIFdecp2
10 LIMo
11 QUADi
12 FMDETo
13
AMDETo
14
AMSW
15
RSSIo
16
RFAGCo
17
AGCAMPo
18
AGC
1
9
NAMPi
20
NAMPo
21
COMPi
22
COMPo
23
GND
24
RFin
CN306
CN303
.
CF2
L72-1040-05
IN
oUT
X1
L77-3073-05
GND1
GND2
oUTPUT
VCC
D408
DB2S310
Q414
EMD
9
2SA1832(GR)F
Q416
D40
9
DB2S310
2SC4738(GR)F
Q415
.
IC3
BD7542FVM
1
2
3
4
oUT1
VSS
5
6
7
8
VDD
L5
.
C2
9
0.15u
35
.
C32
10u
20
L1
TH1
100k
.
IC40
9
NJM2878F4-33
1
2
CoNTRoL
GND
4
VIN
3
VoUT
2SJ648-A
.
Q2
.
D2
DZ2J0
9
1(M)
.
CP1
10X4
.
L3
.
IC2
SKY72310-362
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
1
9
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
CF1
L72-1017-05
IN
oUT
L302
560n
L304
56n
2SC5108(Y)F
Q303
2
3
1
L30
9
100n
.
Q1
LTC014EEBFS8
CN302
CN304
L307
2.2u
L310
2SC4215-F(Y)
Q305
IC304
BU7445HFV
1
2
3
IN+
VSS
IN-
4
oUT
5
VDD
.
R430
1k
R71
100
.
R72
1k
.
R28
10M
.
R344
2.7k
.
R338
47k
.
R337
1k
.
R341
10k
.
R328
18k
.
R340
270k
.
R33
9
15k
R350
10k
.
R336
1k
.
R342
100k
R351
100k
.
R343
22k
R73
0
.
R345
0
.
R332
0
R308
0
.
R32
9
10
R440
0
R432
10k
R434
10k
R433
270k
R435
0
R431
0
R42
9
0
.
R30
180k
.
R12
68k
.
R13
47k
.
R31
47k
.
R23
10
.
R26
1k
.
R18
1k
.
R20
0
.
R24
3
9
0
.
R1
9
0
.
R27
10k
.
R22
120
.
R825
0
R323
0
.
R21
47
.
R2
9
47
.
R25
100k
.
R33
4.7k
.
R75
10
.
R10
10
.
R16
1k
.
R15
10
.
R76
0
.
R14
47k
.
R3
9
0
10k
.
R324
18k
R307
560
R315
0
R306
330k
R303
1k
R355
0
.
R304
1k
.
R305
1k
R381
220
R37
9
2.2k
R368
220
R316
3.3k
.
R326
330
R378
3
9
0k
R357
120k
R358
33k
.
C464
1u
.
C463
100p
.
C468
0.01u
.
C46
9
1u
10
C5
10p
C4
0.01u
.
C7
0.01u
C6
10p
C2
100p
C350
0.01u
C327
0.1u
.
C336
10u
10
.
C33
9
0.1u
.
C330
0.1u
.
C340
0.01u
.
C345 0.1u
.
C338
10u
10
.
C346
1u
.
C326
10p
C348
47p
.
C333
0.1u
.
C332
0.1u
.
C307
0.1u
C313
0.1u
.
C343
0.1u
C3
0.01u
.
C341
0.1u
.
C344
0.1u
.
C347
0.01u
.
C342
1u
C351
100p
C465
1u
C466
1u
C462
1u
.
C3
9
33p
.
C21
100p
.
C28 100p
.
C36
100p
C1
0.01u
.
C33
0.01u
.
C31
100p
.
C
9
10p
.
C11
0.01u
.
C1
9
100p
.
C26
100p
.
C17
100p
100p
.
C23
100p
.
C20
100p
.
C10
0.01u
.
C24
0.1u
.
C25
100p
.
C22
0.1u
.
C18
100p
.
C16
.
C334
0.1u
.
C335
0.1u
.
C337
0.1u
.
C30
1u 25
C315
0.01u
C324
33p
C306
0.01u
C322
100p
C317
100p
C316
10p
C323
150p
C325
68p
C30
9
10p
C361
0.01u
.
C35
9
0.01u
C367
0.01u
C36
9
0.01u
C368
470p
C366
0.01u
.
C371
0.01u
.
C34
0.047u
.
C
9
1
0.1u
+
-
150C
- +
-
ASSIST
+
CV
POWER
MIC
ME
SP+
SP-
POWER
MIC
ME
SP+
SP-
PLL System
DC AMP
(CV/Assist)
FM System
DC AMP(RSSI)
AVR(33C)
DC Switch
(Assist)
DC Switch
(Assist)
Tripler
1st IF AMP
DC Switch(150C)
DC/DC Converter
DC/DC Converter
Over Voltage
Protection
DC/DC Converter
D408,40
9
B-BUS
B-BUS
.
R17
100k
150C
3.3V
13.9V
3.
8
0V
0.64V
0.96V
4.70V
4.51V
3.30V
20kHz
3.3V
3.31V
Содержание Nexedge NX-720H
Страница 83: ...NX 720H G 720H 83 MEMO ...