CT1496-2
MIL-STD-1397 Type E 10MHz
Low Level Serial Manchester 32 Bit Encoder
Features
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Implements Type E protocol
Operates with a single +5V supply
Single clock input (40MHz)
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)
to provide a complete low level serial interface
CIRCUIT TECHNOLOGY
www.aeroflex.com
A E
RO
F
LE
X
LA
C
ISO
9001
E
RT
I
F
I
E
D
B
S
I
NC
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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.
Sync
Bit
LSB
32-Bit
Word
Register
MSB
Sys Clr / Load
Sync
Data
C/I
Bit4
Vcc
Timing
Section
TX Data
TX Data
Data
ST
Data
ST
WI
Bit
External
Encoder
Inhibit
32-Bit
Parallel
Word Input
2-Bit
Register
Mux
Manchester
Encoder
DeMux
SIS/SOS
Input
+5V
Parity
Select
Encoder
Enable
Transmit /
Self-Test
4-Bit SIS/SOS
Select
34-Bit
Select
35-Bit
Select
40MHz
Clock TTL
GND
4-Bit
Register
Controller
Parity
Generator
TX Inhibit
Block Diagram
eroflex Circuit T
echnology
– Data Bus Modules For The Future © SCDCT1496 REV A 3/22/00
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
