NATIONAL HYBRID, INC.
2200 Smithtown Avenue, Ronkonkoma, NY 11779
(631) 981-2400 FAX 631-981-8888
Mil-Std-1553/1760 Products
NHI-15479 Ceramic Package Series
+5V Monolithic Dual Transceivers
Features:
Compliant to Mil-Std-1553A & B, Mil-Std-1760
Single +5V Supply
!!
1.5 Watts Maximum Power Dissipation @ 100%
Duty Cycle
!!
Output Driver Withstands Short Circuit Fault
Proprietary Monolithic Design Provides
Superior Reliability, with outstanding
Thermal Impedance Characteristics
!!
Superior Noise Performance Characteristics
Compatible with the NHI-1559 family devices
The transmitters will output bi-phase manchester to
the coupling transformer when the TX and TX_L
inputs are driven by complementary TTL digital data.
The device provides an independent transmitter
inhibit TXINH for each channel.
1553
Data Bus
Isolation
Transformer
TXOUT
Description:
The NHI-15479 series of Mil-Std-1553/1760 monolithic
dual transceivers are available in 1.850" x .600", 36
pin plug-in and flatpack ceramic packages.
It
operates off of a single +5V power supply with very
low standby power dissipation.
Each receiver converts the 1553 bus bi-phase data to
complementary RX and RX_L TTL digital outputs
for use by the manchester decoder. The device
provides independent receiver enables for each
channel.
+5V
TRANSMITTER
TX
TX
Transmit
TX_L
TXINH
Logic
Coupler Box
Direct
or
Transformer
Shaping
Network
TXOUT_L
RECEIVER
RX
RX
Receive
RX_L
Logic
RXENA
Comparator
Filter
RXIN
RX
Input
RXIN_L
Figure I: NHI-15479 Block Diagram
(Each Channel)