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PDF CT1508-2 Data sheet ( Hoja de datos )
| Número de pieza | CT1508-2 | |
| Descripción | CT1508-2 MIL-STD-1397 Type E 10MHz Serial Manchester 4-Bit SIS / SOS Decoder | |
| Fabricantes | Aeroflex Circuit Technology | |
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CT1508-2
MIL-STD-1397 Type E 10MHz
Serial Manchester 4-Bit SIS / SOS Decoder
Features
• Unique Manchester decoder requires no clock
• 4 Bit SIS / SOS output
• Operates with ±5 volt supply
CIRCUIT TECHNOLOGY
www.aeroflex.com
• Removes sync, word identifier and parity bits
• Does both data and SIS / SOS decoding
• Detects parity on all received data
• Flags received messages with word lengths greater than 4 bits
• Accepts self-test inputs for BITE applications
• Generates one clock edge per received bit for bit counting applications
• May be used as a serial decoder for indefinite word lengths
FLEX LA
ISO
9001
CE R T I F I E D
• Interfaces directly to the CT1496-2 (Manchester Encoder) and CT1469-2 (Transceiver)
• MIL-PRF-38534 compliant devices available
General Description
CT1508-2 is a hybrid microcircuit which incorporates a serial decoder in a single package. The encoder accepts a "N"
Bit (Typically 4, 34 or 35) serial Manchester encoded TTL NRZ signals and outputs a 4 bit SIS / SOS TTL output along
with "N" recovered data Bits/Clocks. Aeroflex Circuit Technology is a 80,000 square foot MIL-PRF-38534 certified
facility in Plainview, N.Y.
DATAst
DATA
DATA
DATAst
Data
Reconstruct
+5V
Gnd
-5V
VCC
VEE
Manchester
Decoder / Clock
Regenerator
Master
Reset
4 Bit
SIS / SOS
Register
Counter
DATAr
CLOCKr
SIS / SOS
False
Transmission
Envelope
SIS / SOS Output
TP1 TP1 TP1 TP1
Test Points
Block Diagram
eroflex Circuit Technology – Data Bus Modules For The Future © SCDCT1508 REV A 3/22/00
1 page  
Functional Description and Pinout
Pin Pin Name
#
Function
Load or
Drive
1 VCC +5V ± 10%
9 VEE -5V ± 10%
2
RX DATA
Connect to DATA output of RX
-
-
1 S Load
4
RX DATA
Connect to DATA output of RX
1 S Load
3
DATAST
Connect to DATAST output of encoder
1 S Load
6
DATAST
Connect to DATAST output of encoder
1 S Load
14
Transmission
High within approximately 40nSec of reception 4 S Drives
Envelope
of first half bit; goes low approximately 100nSec
after reception of last half bit (normally low in
inactive state).
19 SIS / SOS False Reset to low state on clear. Goes high
reception of transmission with word length
greater than 4 bits.
1 S Drive
20 SIS / SOS Output Last 4 bits received reside in this register until
1 S Drive
21 (Pin 24 - LSB) cleared. If valid SIS / SOS then register contains
22 (Pin 20 - MSB) SIS / SOS message.
24
17
DataR
Reconstructed Data. Data state to be
considered in conjunction with positive edges of
ClockR.
8
ClockR
Reconstructed Clock (approximately 50% duty
cycle) to be used in conjunction with
Reconstructed Data and maybe used for bit
counting applications.
7
Master Reset
Clears all data registers, bit counter, WORD
PARITY on low. Must be used after each word
to initialize bit counter and parity detector.
11 TP1 Do not connect.
15 TP2 Do not connect.
16 TP3 Do not connect.
13 TP4 Do not connect.
Aeroflex Circuit Technology
5 SCDCT1508 REV A 3/22/00 Plainview NY (516) 694-6700
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet CT1508-2.PDF ] | |
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