HI-1570_09 Datasheet, PDF (1/11 Pages) Holt Integrated Circuits – 5V Monolithic Dual Variable AmplitudeTransceiver

July 2009
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.
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. 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 bus
bi-phase differential 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.
FEATURES
! 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
PIN CONFIGURATIONS
N/C 1
RXENA 2
GNDA 3
GNDA 4
GNDA 5
VDDA/B 6
VDDA/B 7
BUSB 8
BUSB 9
BUSB 10
BUSB 11
1570PCI
1570PCT
33 N/C
32 N/C
31 TXINHA
30 RXA
29 RXA
28 N/C
27 N/C
26 TXB
25 TXB
24 TXINHB
23 N/C
44 Pin Plastic 7mm x 7mm
Chip-scale package
VCONT 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 TXA
19 TXA
18 TXINHA
17 RXA
16 RXA
15 TXB
14 TXB
13 TXINHB
12 RXB
11 RXB
20 Pin Plastic ESOIC - WB package
VCONT A&B 1
BUSA 2
BUSA 3
RXENA 4
GNDA 5
VDDA/B 6
BUSB 7
BUSB 8
RXENB 9
GNDB 10
1570CDI
1570CDT
1570CDM
20 TXA
19 TXA
18 TXINHA
17 RXA
16 RXA
15 TXB
14 TXB
13 TXINHB
12 RXB
11 RXB
20 Pin Ceramic DIP package
(DS1570 Rev. G)
HOLT INTEGRATED CIRCUITS
www.holtic.com
07/09