8-188
Schematics, Boards Overlays, and Parts Lists
: Transceiver (RF) Boards: UHF2/ 700–800 MHz
Figure 8-87. MNUS4002A/E 700–800 MHz Receiver Front End Circuit
IN
IN
TL_RX_78
IN
CTRL_RX_78_SW2
C404
C406
C402
33PF
33PF
33PF
J3
GND
J2
V2
J1
V1
AS211334
5
6
4
1
3
2
U402
C409
C408
0
0
IN2
GND1
GND2
GND3
GND4
OUT2
OUT1
IN1
5
7
3
1
8
6
4
2
FL401
B4232
L401
2
BFR380F
U406
L403
3
1
L402
R406
R405
C426
C425
C421
C423
C422
12NH
33PF
6.8PF
3PF
1PF
10
4.7UF
2.7
2.4NH
12NH
CTRL_RX_78_SW2
C418
6
4
5
C416
33PF
33PF
J3
GND
J2
V2
J1
V1
1
3
2
U404
AS211334
15PF
L408
L407
C413
C412
47PF
7.5NH
10NH
22K
22K
R403
2
1
E401
2
3
1
Q401
R404
R401
R402
4
3
5
Q402
1
6
2
Q402
68
82K
3.3K
22K
BC858CD
BC858CD
MUN5212T
R413
2.7
C427
C424
4.7UF
33PF
CTRL_RX_78_LNA_A
DC_LIN_1_8V_A
R408
R407
2
1
E402
1
6
2
Q403
R409
4
3
5
Q403
R410
BC858CD
68
3.3K
82K
22K
BC858CD
C434
C431
4.7UF
33PF
C428
C429
33PF
4.7UF
U407
12NH
.5PF
RF_RX_FE_B2_OUT
L406
R411
C430
L404
2
3
1
C432
C433
L405
R412
4.7NH
10
2.7
3PF
12NH
6.8PF
BFR380F
OUT
J3
GND
J2
V2
J1
V1
1
CTRL_RX_78_SW2
AS211334
6
4
3
5
2
U403
C411
C410
0
0
IN2
GND1
GND2
GND3
GND4
OUT2
OUT1
IN1
5
7
3
1
8
6
4
2
FL402
B4232
J3
GND
J2
V2
J1
V1
U405
CTRL_RX_78_SW2
C415
1
3
2
C414
0
AS211334
0
6
4
5
C417
C419
33PF
33PF
VCC
GND
NC
DC_LIN_3V
CTRL_RX_78_SW1
6
CTRL_RX_78_SW2
3
1
4
U408
5
2
U408
U408
NC7WZ04
NC7WZ04
NC7WZ04
IN
IN
C405
33PF
C407
33PF
Содержание ASTRO APX 7000
Страница 1: ......
Страница 4: ...iv Document History Notes ...
Страница 24: ...2 4 Radio Power DC Power Routing VOCON Board Notes ...
Страница 98: ...3 74 Theory of Operation Global Positioning System GPS ...
Страница 104: ...4 6 Troubleshooting Procedures Power Up Self Check Diagnostics and Repair Not for Field Use Notes ...
Страница 163: ...Troubleshooting Charts PA Failure 5 59 ...
Страница 164: ...5 60 Troubleshooting Charts PA Failure ...
Страница 168: ...6 4 Troubleshooting Waveforms Clocks 6 2 2 4 MHz Clock Trace 1 Trace recorded at R6113 Figure 6 2 4 MHz Clock Waveform ...
Страница 174: ...6 10 Troubleshooting Waveforms Audio SSI 6 3 3 Sync Trace 1 Trace recorded at R3005 Figure 6 8 Audio SSI Sync Waveform ...
Страница 175: ...Troubleshooting Waveforms Audio SSI 6 11 6 3 4 BCLK Trace 1 Trace recorded at R3006 Figure 6 9 Audio SSI BCLK Waveform ...
Страница 177: ...Troubleshooting Waveforms RX SSI 6 13 6 4 2 DA Trace 1 Trace recorded at R1005 Figure 6 11 RX SSI DA Waveform ...
Страница 178: ...6 14 Troubleshooting Waveforms RX SSI 6 4 3 FSync Trace 1 Trace recorded at R1004 Figure 6 12 RX SSI FSync Waveform ...
Страница 180: ...6 16 Troubleshooting Waveforms TX SSI 6 5 2 DA Trace 1 Trace recorded at R1017 Figure 6 14 TX SSI DA Waveform ...
Страница 181: ...Troubleshooting Waveforms TX SSI 6 17 6 5 3 FSync Trace 1 Trace recorded at R1007 Figure 6 15 TX SSI FSync Waveform ...
Страница 182: ...6 18 Troubleshooting Waveforms SPI 6 6 SPI 6 6 1 CLK Trace 1 Trace recorded at R6605 Figure 6 16 SPI CLK Waveform ...
Страница 183: ...Troubleshooting Waveforms SPI 6 19 6 6 2 CLK INV Trace 1 Trace recorded at R2325 Figure 6 17 SPI CLK INV Waveform ...
Страница 184: ...6 20 Troubleshooting Waveforms SPI 6 6 3 CS Trace 1 Trace recorded at Pin 34 of J2301 Figure 6 18 SPI CS Waveform ...
Страница 185: ...Troubleshooting Waveforms SPI 6 21 6 6 4 MOSI Trace 1 Trace recorded at R6603 Figure 6 19 SPI MOSI Waveform ...
Страница 187: ...Troubleshooting Waveforms I2C BUS 6 23 6 7 2 SCL 5V Trace 1 Trace recorded at R6204 Figure 6 21 I2C Bus SCA 5V Waveform ...
Страница 188: ...6 24 Troubleshooting Waveforms I2C BUS 6 7 3 SDA Trace 1 Trace recorded at R6209 Figure 6 22 I2C Bus SDA Waveform ...
Страница 194: ...6 30 Troubleshooting Waveforms USB 6 10 2 D Trace 1 Trace recorded at Pin 35 of J3001 Figure 6 28 USB D Waveform ...
Страница 196: ...6 32 Troubleshooting Waveforms UART 6 11 2 TX Trace 1 Trace recorded at F_Boot_Tx Figure 6 30 UART TX Waveform ...
Страница 198: ...6 34 Troubleshooting Waveforms SDRAM 6 12 2 CLKX Trace 1 Trace recorded at TP6308 Figure 6 32 SDRAM CLKX Waveform ...
Страница 276: ...7 58 Troubleshooting Tables List of Board and IC Signals Notes ...
Страница 318: ...8 42 Schematics Boards Overlays and Parts Lists Transceiver RF Boards VHF 700 800 Notes ...
Страница 380: ...8 104 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 700 800 MHz Notes ...
Страница 432: ...8 156 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 VHF Notes ...
Страница 458: ...8 182 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 UHF2 Notes ...
Страница 498: ...8 222 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 700 800 MHz Notes ...
Страница 546: ...8 270 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 VHF Notes ...
Страница 606: ...8 330 Schematics Boards Overlays and Parts Lists VOCON Boards Notes ...
Страница 638: ...Glossary 10 Glossary Notes ...
Страница 643: ......