A
B
1
2
3
NXR-800H
SCHEMATIC DIAGRAM /
原理图
TX_CoPWAD
D_A4
D_A8
D_A5
D_A0
D_A10
D_A17
D_A14
D_A19
D_D5
D_WR
oCXo_ST_G
EVOL_CLK
RY
D_CS0
RX_PWR_SAVE
PWR_ST_R
BER_CLK
TX_CoSDTi
TX_CoLRCK
SYS_RST
BER_DAT
iMP_H_L
BER_CLK_L
BER_EN
BER_DAT_L
BER_EN
REF_EXiST
REF_iN_oUT
oX_SDi2
oCXo_VR_EN
oCXo_oN
oCXo_CURR
oCXo_EXiST
VCXo_DA_EN
REF_LDT
PLL_19_CE
PLL_19_EN
oX_SDo2
oX_SCLK2
REF_SW
oX_SCL
REF_SW2
EXT_EXiST
oX_SDA
VoLUME_IN
oCXo_ST_R
AMP_SW
SCM_EN
AF_MUTE
EVOL_DATA
TX_CoSDTo
TX_CoSCLK
TX_CoPWDA
Lo_VoL_DET
D_D1
D_D4
D_D3
D_RD
D_D7
D_D6
CN400
GND
1
2
GND
REF_SW2
3
4
WP(SYS-RST)
REF_SW
5
6
oX_SCL
EXT_EXiST
7
8
oX_SDA
REF_EXiST
9
iMP_H_L
10
REF_iN_oUT
11
GND
12
oX_SDi2
13
GND
14
oCXo_VR_EN
15
GND
16
oCXo_oN
17
GND
18
oCXo_CURR
19
GND
20
oCXo_EXiST
21
GND
22
VCXo_DA_EN
23
GND
24
REF_LDT
25
GND
26
PLL_19_EN
27
GND
28
PLL_19_CE
29
GND
30
oX_SDo2
31
GND
32
oX_SCLK2
33
33MPU
34
GND
35
GND
36
CN401
1
GND
2
GND
3
RX_PWR_SAVE
4
oCXo_ST_R
5
oCXo_ST_G
6
VoLUME_IN
7
PWR_ST_R
8
MOD_D_OUT
9
GND
10
RX_AUDIO_D
11
BEEP
12
MIC_D_IN
13
iNRA_SW
14
NC
15
HooK_RXD_SCM
16
AMP_SW
17
SCM_EN
18
AF_MUTE
19
iNSP_SW
20
EVOL_DATA
21
PTT_AM16C
22
EVOL_CLK
23
GND
C453
0.01u
X300
L77-1988-05
1
VC
2
GND
3
oUT
4
+VDC
1
G
2
INA
3
GND
4
oUTY
5
VCC
C475
10u
1
oUT
2
IN
4
3
C480
10u
CN302
C446
1000p
R411
4.7k
R410
10k
R413
10k
R418
100k
C466
0.1u
R424
680
R428
10
C467
0.01u
R440
22
R439
22
R432
22
C461
0.01u
R419
100k
C468
0.1u
R429
470
C465
0.01u
C469
120p
C479
C477
120p
C387
0.01u
L310
10u
L311
1.5u
C438
0.01u
C403
100p
C399
0.1u
L309
820n
R362
680
R361
100k
C416
100p
L308
820n
C432
100p
C396
0.01u
C423
100p
R391
10
C448
33u16
R438
10
IC313
TC7WU04FK-F
1
1A
2
3Y
3
2A
4
GND
5
2Y
6
3A
7
1Y
8
VCC
IC302
SN65HVD485EDR
1
R
2
RE
3
DE
4
D
5
GND
6
A
7
B
8
VCC
R895
150
L315
1
G
2
INA
3
GND
4
oUTY
5
VCC
2SC4738F
Q300
2SC4738F
Q304
2SC4738F
Q305
1
VCoM
2
AINR
3
AINL
4
VSS
5
VDD
6
DEM0
7
DEM1
8
SDTo
9
SDTI
10
LRCK
11
MCLK
12
SCLK
13
PWAD
14
PWDA
15
AoUTL
16
AoUTR
R303
0
R323
0
R325
0
R371
0
R360
0
R404
0
R372
0
R335
0
R368
0
R375
0
R913
0
R328
0
R397
0
R431
0
R329
0
R367
0
R318
100
R417
0
R333
0
R311
0
R357
0
R370
0
R319
100
R337
0
R396
0
R366
0
R334
0
R332
0
R365
0
R327
0
R331
0
R309
0
R364
0
R358
0
R369
0
R363
0
R336
0
R373
0
R322
0
R330
0
R409
0
R405
0
R324
0
R374
0
R914
0
R393
0
R359
0
R326
0
R408
0
R915
47k
R451
47k
R387
100k
R416
100k
R415
10
R421
10
R441
82k
R433
1M
R896
100
C462
0.01u
C463
10p
C320
100p
C410
100p
C356
100p
C324
100p
C476
0.1u
C821
0.1u
C305
0.1u
C360
0.1u
C359
0.1u
C420
0.1u
C450
0.1u
C449
0.1u
C445
0.1u
C311
0.1u
C371
0.1u
C344
1000p
C362
0.01u
C328
1000p
C308
1000p
C398
1000p
C352
1000p
C350
1000p
C355
0.01u
C415
1000p
C402
1000p
C366
1000p
C395
1000p
C316
1000p
C335
1000p
C413
1000p
C377
1000p
C471
1000p
C374
1000p
C370
1000p
C315
1000p
C814
1000p
C436
1000p
C347
1000p
C361
1000p
C406
1000p
C478
1000p
C819
1000p
C341
1000p
C331
1000p
C474
3900p
R927
0
R928
0
R929
0
R930
0
C825
1000p
C826
100p
C827
100p
C828
1000p
C829
100p
R931
0
R932
0
R933
0
1
2
3
4
oUTY
5
VCC
1
2
3
4
oUTY
5
VCC
A1
A2
A3
A4
A5
A6
B1
B2
B3
E4
DQ5
E5
DQ7
E6
A16
F1
CE
F2
DQ8
F3
DQ10
F4
DQ12
F5
DQ14
F6
BYTE
G1
oE
G2
DQ9
G3
DQ11
G4
VCC
G5
DQ13
G6
DQ15/A-1
H1
VSS1
H2
DQ1
H3
DQ3
H4
DQ4
H5
DQ6
H6
VSS2
R946
0
R947
0
R948
0
R951
100k
J703
J702
D702
1SS355
L326
L327
L328
L329
C870
1000p
C871
1000p
C872
1000p
C873
1000p
CHASSIS GND
REFERENCE 19.2MHz
FRAME 12.5Hz
33MPU
33MPU
33MPU
33MPU
33MPU
33MPU
CONTROL UNIT2 (X53-4140-XX)
RS-485 DRIVER/RECIEVER
VOLTAGE PROTECTOR
MOD_D_OUT
RX_AUDIO_D
MiC_D_IN
50MPU_A
Hi_VoL_DET
33MPU
PLL_GND
CP_GND
50MPU_A_GND
50MPU
BEEP
33SH
BEEP
FRAME_DET
50MPU
REFERENCE AMP
REFERENCE
AMP
33MPU
TX UNIT X56-312 (A/3) -CN805
L UNIT X53-413 (A/3) -CN1
A3
A7
RY/BY
WE
A9
A13
A4
A17
NC1
X56-312 (A/3) -CN405
TX UNIT
BUFFER
BUFFER
IC300
TC7SET126FU-F
IC301
TC7SET126FU-F
G
INA
GND
G
INA
GND
IC304
TC7SH125FU-F
IC727
TC7SH126FU-F
BUFFER
BUFFER
IC309
AK4550VTP
CODEC
IC308
XC61CN2702N
VOLTAGE
DETECTOR
VSS
NC
I
IC314
FLASH MEMORY
IC728
TC7SH126FU-F
BUFFER
REFERENCE AMP
Q300
2.80V
3.44V
4.91V
3.96V
3.3V
3.54V
2.90V
4.91V
3.15V
4.90V
2.50V
3.3V
Summary of Contents for NXR-800H
Page 180: ...1 E CN300 RX_IF_VN 168 ...