3-56
Theory of Operation
: Controller
3.2.7
RF Interface
The VOCON to RF board interface through connector J1001. See
Figure 3-40.
Figure 3-40. VOCON to RF Board Interface
The major interfaces are the TX and RX SSI buses, the SPI Bus with associated chip selects, the
synchronization signals (DMCS,SYNCB), the 16.8 MHz clock, MAKO VDDs and I/O's, and the
TX Inhibit from the Option Board.
3.2.7.1 TX SSI
The TX SSI interface provides the SSI data from the OMAP's DSP to the Trident IC on the RF board.
The interface contains 3 signals, the TX frame sync, TX clock, and TX Data signals. The pin
numbers for both the RF connector and OMAP IC are also shown in
Figure 3-40.
3.2.7.2 RX SSI
The RX SSI interface provides the SSI data from the Abacus IC on the RF board to the OMAP's
DSP. The interface contains 3 signals, the RX frame sync, RX clock, and RX Data signals. The pin
numbers for both the RF connector and OMAP IC are shown in
Figure 3-40.
3.2.7.3 Synchronization
The DMCS and SYNCB signals are used for synchronization between the RF and VOCON boards.
These signals route from the OMAP IC timer outputs through the CPLD to the RF board. The DMCS
signal connects to the Trident IC and the SYNCB connects to the ABACUS IC. The pin numbers for
both of the signals are shown in
Figure 3-40.
RF - VoCon Interface
OMAP
TX SSI
RX SSI
SPI
ABCS
TRCS
EEPROM_CS
DMCS
SYNCB
LOCK
TEMP
16.8MHz
TUNE
ISET
BATT
VSW1
V2775
GND
BSTAT
TXINH
CPLD
3
3
3
McBSP3
GPIO59
GPIO17
GPIO28
GPIO56
McBSP2
McBSP2
TIMER.PWM2
GPIO7
TIMER.EXTCLK
BUFFER
RSTB
5
MAKO
VDD
VSW1
V6
POR
ATOD_5
FE_TUNE1
PWR_CTRL
OPTION BOARD
9
ONE_WIRE_BATT
RF CONNECTOR
LDO2
LDO2
GPIO61/SPIF_CS2
DAC_CS
L3
V6
G19
T19
V15
M20
Y5
N18
TIMER.PWM1
TX_RX
L14
A11
L3
N1
L13
N14,P14,AA17
33,31,29
22
27
2
25
14
19,17,21
15,11,13
Y6,W7,AA5
V7,W6,P10
9
23
3
28,30,
32,34,36
37
6
8
7
20
18
16
26
12
1,4,5,10,24,
35,38,39,40
ATOD_4
C1
56
L8
L12
D2
Summary of Contents for APX 6000
Page 1: ...APX TWO WAY RADIOS APX 5000 APX 6000 APX 6000XE SRX 2200 Detailed Service Manuals ...
Page 2: ......
Page 6: ...iv Document History Notes ...
Page 20: ...xviii CommercialWarranty Notes ...
Page 26: ...2 4 Radio Power DC Power Routing VOCON Board Notes ...
Page 100: ...3 74 Theory of Operation Bluetooth Notes ...
Page 172: ...5 66 Troubleshooting Charts PA Failure Notes ...
Page 250: ...6 78 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 276: ...7 26 Troubleshooting Tables List of Board and IC Signals Notes ...
Page 300: ...8 24 Schematics Boards Overlays and Parts Lists Transceiver RF Boards VHF Notes ...
Page 336: ...8 60 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 Notes ...
Page 378: ...8 102 Schematics Boards Overlays and Parts Lists Transceiver RF Boards 700 800 MHz Notes ...
Page 432: ...Glossary 10 Glossary Notes ...
Page 437: ......