CT1496-2
MIL-STD-1397 Type E 10MHz
Low Level Serial Manchester 32 Bit Encoder
Features
• Implements Type E protocol
• Operates with a single +5V supply
• Single clock input (40MHz)
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• Selectable 4, 34, 35 bit operation
• Selectable Parity
• Includes parallel to serial converter
• Self-test outputs for BITE applications
• External encoder inhibit
• Bipolar Construction
• Use with CT1469-2 (transceiver) & CT1508-2 (4 bit decoder)
ISO
9001
to provide a complete low level serial interface
I
General Description
CT1496-2 is a hybrid microcircuit which incorporates a low level serial Manchester encoder in a single
package. The encoder accepts 32 bit parallel data and outputs a 35 bit Manchester encoded TTL NRZ serial
stream (34 bit transmission if parity option is not selected). Preceding the 32 data bits are a synchronization
and word identifier bit and a parity bit trails the data (parity is optional and may be disabled). A self-test feature
is implementd allowing the user to verify transmit patterns. Aeroflex Circuit Technology is a 80,000 square
foot MIL-PRF-38534 certified facility in Plainview, N.Y.
External
Encoder
Inhibit
Sync
Bit
WI
Bit
LSB
TX Data
32-Bit
Word
Register
TX Data
Data ST
Data ST
2-Bit
Register
Manchester
Encoder
32-Bit
Mux
DeMux
Parallel
Word Input
MSB
Sync
Sys Clr/Load
Timing
Section
Data
C/I
Bit4
SIS/SOS
Input
4-Bit
Register
+5V
Vcc
Parity
Select
Encoder
Enable
Transmit/
Self-Test
Parity
Generator
Controller
4-Bit SIS/SOS
Select
34-Bit
Select
35-Bit
TX Inhibit
Select
40MHz
Clock TTL
GND
Block Diagram
eroflex Circuit Technology – Data Bus Modules For The Future © SCDCT1496 REV A 3/22/00
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
