HI-1569
TXA/B
TRANSMITTER
BUSA/B OUT
1:1.79
Point
“AT” 1:1.4
52.5 W
(.75 Zo)
TXA/B
TXINHA/B
35 W (.5 Zo)
BUSA/B OUT
Isolation
Transformer
Coupling
Transformer
52.5 W
(.75 Zo)
52.5 W
(.75 Zo)
1.4:1
Point
“AT” 1.79:1
RECEIVER
52.5 W
(.75 Zo)
Coupling
Transformer
Isolation
Transformer
RXENA/B
Figure 3. Transformer Coupled Test Circuits
35 W (.5 Zo)
RXA/B
RXA/B
ORDERING INFORMATION
PART
NUMBER
HI-1569PQI
HI-1569PQT
HI-1569PQM
PACKAGE
DESCRIPTION
64 PIN PLASTIC PQFP
64 PIN PLASTIC PQFP
64 PIN PLASTIC PQFP
TEMPERATURE PROCESS
RANGE
FLOW
-40°C TO +85°C
I
-55°C TO +125°C
T
-55°C TO +125°C
M
BURN
IN
NO
NO
YES
LEAD
FINISH
SOLDER
SOLDER
SOLDER
CIRCUIT DESIGN CONSIDERATIONS
Holt's Application Note AN-500 contains useful information
regarding circuit design and layout when using MIL-STD-
1553 transceivers.
THERMAL CHARACTERISTICS
PART NUMBER
HI-1569PQI
HI-1569PQT
HI-1569PQM
PACKAGE
DESCRIPTION
64 PIN PLASTIC
PQFP
CONDITION
ØJA
JUNCTION TEMPERATURE
TA=25°C TA=85°C TA=125°C
Socketed 46.3°C/W 58°C 118°C 157°C
Data taken at VDD=5.0V, continuous transmission at 1Mbit/s, single transmitter enabled.
HOLT INTEGRATED CIRCUITS
6