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PDF ARX2412 Data sheet ( Hoja de datos )
| Número de pieza | ARX2412 | |
| Descripción | ARX2412 Data Terminal Manchester Converter for MIL-STD-1553 | |
| Fabricantes | Aeroflex Circuit Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ARX2412 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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ARX2412
Data Terminal Manchester Converter
for MIL-STD-1553
Features
• PERFORMS FUNCTIONS COMMON TO MIL-STD-1553
• ENCODE
• DECODE
• ADDRESS RECOGNITION
• THREE STATE PARALLEL I/O
• SELF TEST CAPABILITY
• MIL-PRF-38534 COMPLIANT CIRCUITS AVAILABLE
FLEX LA
ISO
9001
CE R T I F I E D
• SMALL SIZE – REPLACEMENT FOR DDC8937 MODEL NUMBER
• 5V DC OPERATION
• FULL MILITARY (-55°C TO +125°C) TEMPERATURE RANGE
1
General Description
The Aeroflex Circuit Technology Model ARX2412 Manchester Converter is a self contained, 48pin,
triple-in-line hybrid package designed to perform: encode, decode, logic and control functions in a
MIL-STD-1553, A and B multiplex data system. It Provides the necessary interface between transceivers and
a three state parallel 16 bit bus of the protocol logic section of a subsystem remote terminal or controller.
RECEIVER
SECTION
SYNC
BUSY
RX DATA
IN
DECODER
RX DATA
CLK1
OUTPUT
12MHZ
CLOCK 1
INPUT
12MHZ
CLOCK 2
INPUT
12MHZ
CLOCK
SELECT
IN VALID
WORD
CLK CLOCK
SERIAL SERIAL
OUT DATA
SELECT
CLOCK
LOGIC
5 BITS
ADDRESS
RECOGNITION
REGISTER
BITS 0-4
VALID
CLK
VALID
ADDRESS
REGISTER
CLK
VALID
WORD
REGISTER
SERIAL TO
PARALLEL
SHIFT
REGISTER
BITS 0-4
BITS 5-15
3 STATE ENABLE
3 STATE LATCHES
AND BUFFER
3 STATE OUT
RESET
16 BITS
POC POWER ON CLEAR
RECEIVER SYNC TYPE
BUSY RECEIVE
OWN ADDRESS 5 BITS
B0-B4, MSB-LSB
COMMAND SYNC CLEAR
(ADDRESS REGISTER CLEAR)
VU INT
(VALID ADDRESS)
VALID WORD
SACK
(SYSTEM ACKNOMLEDGE)
TO / FROM 16 BIT PARALLEL BUS
BITS DB0 - DB15
MSB - LSB
TX DATA
TX DATA
TRANSMITTER
SECTION
SERIAL
IN
OUT
CLK
ENCODER
BUSY
OUT SYNC
ENABLE
SERIAL
DATA
CLOCK
PARALLEL
TO SERIAL
SHIFT
REGISTER
ENABLE
3 STATE IN
3 STATE LATCHES
AND BUFFER
3 STATE ENABLE
Figure 1 – FUNCTIONAL BLOCK DIAGRAM
OSEL
(OUTPUT SELECT)
TRANSMITTER BUSY
SYNC SELECT
ENCODER ENABLE
eroflex Circuit Technology – Data Bus Modules For The Future © SCD2412 REV C 10/19/98
1 page  
1MHZ CLOCK
BIT TIMES
POWER ON CLEAR
POC (INPUT)
RX DATA (INPUT)
RX DATA (INPUT)
RECEIVER SYNC TYPE
(OUTPUT)
RECEIVER BUSY
(OUTPUT)
VALID WORD
(OUTPUT)
VU INT (OUTPUT)
VALID ADDRESS
SACK (INPUT)
SYSTEM ACKNOWLEDGE
COMMAND SYNC
CLEAR (INPUT)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6
COMMAND 5 BIT
SYNC ADDRESS
0 0 01 0 0 0 0 0 0 0 0 0 0 1
DATA
SYNC
1
5µs
NOM
5µs
NOM
16µs NOM
COMMAND SYNC
16µs NOM
TAKE DATA
500ns NOM
4µs
NOM
16µs NOM
DATA SYNC
16µs NOM
TAKE DATA
500ns NOM
2µs NOM
100 ns MIN
Note: A Command Sync Clear must be provided for
every Receiver Sync Type low to high transition.
2
µS
DO NOT CUE FROM VALID WORD
2µs NOM
50ns MIN to 20µs MAX
25ns MIN to 1µs MAX
100ns
MIN
Figure 2 – RECEIVER SECTION TIMING FOR DECODE OPERATION
1MHZ CLOCK
1 2 3 4 5----
BIT TIMES
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4
POWER ON CLEAR
POC (INPUT)
OUTPUT SELECT
(INPUT)
SYNC SELECT
(INPUT)
ENCODER ENABLE
(INPUT)
XMTR BUSY
(OUTPUT)
3.5µs
NOM
1µs NOM
TX DATA (OUTPUT)
1µs NOM 100ns MIN
(OR DELAY)
1.0 µs MIN
DON’T CARE
0.5 µs MAX
BRING LOW NO LATER THAN XMTR BUSY HIGH TO LOW
1.0 µs MIN
Drop Enable 1µs MIN Before
XMTR Busy To Stop Next Word
SEND DATA
16µs NOM
4µs
NOM
SEND DATA
16µs NOM
COMMAND
SYNC
0 0 0 0 1 0 01 1 1 0 1 0 0 01 1
DATA
SYNC
0 0 1 1 1 1 1 0 00 0 1 0 1 1 1 0
TX DATA (OUTPUT)
Figure 3 – TRANSMITTER SECTION TIMING FOR ENCODE OPERATION
Aeroflex Circuit Technology
5 SCD2412 REV C 10/19/98 Plainview NY (516) 694-6700
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet ARX2412.PDF ] | |
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