CT1698
MIL-STD-1397 Type E 10MHz
Low Level Serial Interface
Features
•
•
•
•
•
•
•
•
•
•
•
•
Optional transformer isolation
Internally set threshold
Matched to 50 ohm system impedance power on and off
Operates with ±5 volt supplies
Power management
External output level adjustment
Accepts synchronous input data
Unique Manchester decoder requires no clock
Generates one clock per received bit
May be used for serial decoding of indefinite word lengths
Interfaces directly to the CT2500 protocol device
Other Wire and Fiber Optic types available
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
.
General Description
CT1698 is a single hybrid microcircuit which incorporates a serial encoder, transceiver, and Manchester decoder in one package.
The encoder accepts serial NRZ data in conjunction with two synchronous clocks. The CT1698 receiver section accepts bipolar
Manchester encoded signals and passes level detected signals to the serial decoder. The CT1698 has a power management function
and a variable drive level option. The transmitter standby mode is available to reduce the overall power consumption of the CT1698.
The variable drive level output is externally programmable for testing purposes. Aeroflex Circuit Technology is a 80,000 square foot
MIL-PRF-38534 certified facility in Plainview, N.Y.
Serial NRZ Data
10 MHz Shift Clock
20 MHz Gated Clock
Envelope
Master Reset
Encoder Enable
Power
Management
Power Management
Decoded Data Envelope
Manchester
Decoder
and
Clock Regeneration
Clock
R
Decoded Data
R
Data
Reconstruction
Serial
Manchester
Encoder
Drive 1
XFMR SEC/DATA Input
XFMR SEC
+5V
Primary
Data
Output
Primary
Data
Output
XFMR SEC
XFMR SEC/DATA Input
Drive 2
Rx Strobe
Figure 1 – Block Diagram
eroflex Circuit T
echnology
– Data Bus Modules For The Future © SCDCT1698 REV A 6/12/98
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
