
HI-1570
MIL-STD-1553 / 1760
5V Monolithic Dual Variable AmplitudeTransceiver
PIN CONFIGURATIONS
DESCRIPTION
bus
To minimize the package size for this function, the
transmitter outputs are internally connected to the
receiver inputs, so that only two pins are required for
connection to each coupling transformer. For designs
requiring independent access to transmitter and receiver
1553 signals, please contact your Holt Sales
representative.
The HI-1570 is a low power CMOS dual +5V transceiver
with the ability to vary the amplitude of the transmitter
outputs. It is designed to meet the requirements of the
MIL-STD-1553 / 1760 specifications.
The transmitter section of each channel takes
complementary CMOS / TTL digital input data and
converts it to bi-phase Manchester encoded 1553 signals
suitable for driving the bus isolation transformer.
Separate transmitter inhibit control signals are provided
for each transmitter.
A single pin allows the user to
control the transmitter output amplitude.
The receiver section of each channel converts the 1553
bi-phase
data to complimentary CMOS / TTL data
suitable for inputting to a Manchester decoder. Each
receiver has a separate enable input which can be used to
force the output of the receiver to a logic 0.
V
A&B 1
BUSA 2
3
RXENA 4
GNDA 5
VDDA/B 6
BUSB 7
8
RXENB 9
GNDB 10
CONT
BUSA
BUSB
FEATURES
Compliant
MIL-STD-1760, ARINC 708A
to
MIL-STD-1553A
&
B,
CMOS technology for low standby power
Single +5V power supply
Variable transmitter output amplitude
Smallest footprint available in 20 pin plastic
ESOIC (thermally enhanced SOIC) package
Less than 1.0W maximum power dissipation
Available in DIP and small outline (ESOIC)
package options
Military processing options
Industry standard pin configurations
20 Pin Ceramic DIP package
20
19 TXA
18 TXINHA
17 RXA
16
15
14 TXB
13 TXINHB
12 RXB
11
TXA
RXA
TXB
RXB
V
A&B
BUSA
RXENA
GNDA
VDDA/B
BUSB
RXENB
GNDB
CONT
BUSA
BUSB
TXA
RXA
TXB
RXB
TXA
TXINHA
RXA
TXB
TXINHB
RXB
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
20 Pin Plastic ESOIC - WB package
April 2002
(DS1570 Rev. A)
04/02
HOLT INTEGRATED CIRCUITS
www.holtic.com