HI-1569
TRANSMITTER
TXA/B
TXA/B
TXINHA/B
52.5
W
(.75 Zo)
35
W
(.5 Zo)
52.5
W
(.75 Zo)
BUSA/B OUT
1:1.79
Point
“A
T
”
1:1.4
52.5
W
(.75 Zo)
35
W
(.5 Zo)
BUSA/B OUT
Isolation
Transformer
Point
“A
T
”
1.79:1
Coupling
Transformer
52.5
W
(.75 Zo)
1.4:1
RECEIVER
RXA/B
RXA/B
Coupling
Transformer
Isolation
Transformer
RXENA/B
Figure 3. Transformer Coupled Test Circuits
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
RANGE
-40°C TO +85°C
-55°C TO +125°C
-55°C TO +125°C
PROCESS
FLOW
I
T
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
Ø
JA
46.3°C/W
JUNCTION TEMPERATURE
T
A
=25°C T
A
=85°C T
A
=125°C
58°C
118°C
157°C
Socketed
Data taken at VDD=5.0V, continuous transmission at 1Mbit/s, single transmitter enabled.
HOLT INTEGRATED CIRCUITS
6
HOLTIC [ HOLT INTEGRATED CIRCUITS ]
