HI-1570

MIL-STD-1553 / 1760

5V Monolithic Dual Variable AmplitudeTransceiver

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.

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 bus converts the 1553

bi-phase

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“.

The transmitter section of each bus takes complementary

CMOS / TTL Manchester II bi-phase data and converts it

to differential voltages suitable for driving the bus isolation

transformer.

bus

differential

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.

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 7mm x 7mm

plastic chip-scale (QFN) package with

integral heatsink

Less than 1.0W maximum power dissipation

Industrial and extended temperature ranges

Industry standard pin configurations

July 2009

(DS1570 Rev. G)

07/09

20 Pin Ceramic DIP package

20 Pin Plastic ESOIC - WB package

V

A&B 1

BUSA 2

3

RXENA 4

GNDA 5

VDDA/B 6

BUSB 7

8

RXENB 9

GNDB 10

CONT

BUSA

BUSB

20

19 TXA

18 TXINHA

17 RXA

16

15

14 TXB

13 TXINHB

12 RXB

11

TXA

RXA

TXB

RXB

1570CDI

1570CDT

1570CDM

PIN CONFIGURATIONS

PIN CONFIGURATIONS

N/C 1

RXENA 2

GNDA 3

GNDA 4

GNDA 5

VDDA/B 6

VDDA/B 7

BUSB 8

BUSB 9

10

11

BUSB

BUSB

33 N/C

32 N/C

31 TXINHA

30 RXA

29

28 N/C

27 N/C

26

25 TXB

24 TXINHB

23 N/C

RXA

TXB

1570PCI

1570PCT

44 Pin Plastic 7mm x 7mm

Chip-scale package

1570PSI

1570PST

1570PSM

1

BUSA 2

3

RXENA 4

GNDA 5

VDDA/B 6

BUSB 7

8

RXENB 9

GNDB 10

V

A&B

CONT

BUSA

BUSB

20

19 TXA

18 TXINHA

17 RXA

16

15

14 TXB

13 TXINHB

12 RXB

11

TXA

RXA

TXB

RXB

HOLT INTEGRATED CIRCUITS

www.holtic.com