HI-1570
November 2004
MIL-STD-1553 / 1760
5V Monolithic Dual Variable AmplitudeTransceiver
PIN CONFIGURATIONS
DESCRIPTION
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 bus data to complementary 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“.
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.
V
CONT
A&B 1
BUSA 2
BUSA 3
RXENA 4
GNDA 5
VDDA/B 6
BUSB 7
BUSB 8
RXENB 9
GNDB 10
20 TXA
19 TXA
18 TXINHA
17 RXA
1570CDI
1570CDT
1570CDM
16 RXA
15 TXB
14 TXB
13 TXINHB
12 RXB
11 RXB
20 Pin Ceramic DIP package
FEATURES
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Compliant to MIL-STD-1553A & B,
MIL-STD-1760, ARINC 708A
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
Military processing options
Industry standard pin configurations
V
CONT
A&B 1
BUSA 2
BUSA 3
RXENA 4
GNDA 5
VDDA/B 6
BUSB 7
BUSB 8
RXENB 9
GNDB 10
1570PSI
1570PST
1570PSM
20
19
18
17
16
15
14
13
12
11
TXA
TXA
TXINHA
RXA
RXA
TXB
TXB
TXINHB
RXB
RXB
20 Pin Plastic ESOIC - WB package
(DS1570 Rev. C)
HOLT INTEGRATED CIRCUITS
www.holtic.com
11/04
HOLTIC [ HOLT INTEGRATED CIRCUITS ]
