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HI-1569 반도체 회로 부품 판매점

5V Monolithic Dual Transceiver



Holt Integrated Circuits 로고
Holt Integrated Circuits
HI-1569 데이터시트, 핀배열, 회로
August 2006
HI-1569
MIL-STD-1553 / 1760
5V Monolithic Dual Transceiver
DESCRIPTION
The HI-1569 is a low power CMOS dual transceiver
designed to meet the requirements of 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.
The receiver section of each channel converts the 1553
bus 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 outputs and receiver inputs for each
channel are brought out to separate sets of pins. For typical
MIL-STD-1553 applications the transmitter output and
receiver input will be tied together at the isolation
transformer.
PIN CONFIGURATION
(Top View)
FEATURES
! Compliant to MIL-STD-1553A & B,
MIL-STD-1760, ARINC 708A
! CMOS technology for low standby power
! Single 5V power supply
! Less than 1.0W maximum power dissipation
! Military processing options
! Industry standard 64-pin PQFP package
GND A - 1
BUSA OUT - 2
BUSA OUT - 3
VDD A - 4
VDD A - 5
BUSA OUT - 6
BUSA OUT - 7
GND B - 8
N/C - 9
N/C - 10
N/C - 11
VDD B - 12
N/C - 13
RXB - 14
RXENB - 15
RXB - 16
HI-1569
48 - RXA
47 - RXENA
46 - RXA
45 - N/C
44 - VDD A
43 - N/C
42 - N/C
41 - N/C
40 - GND A
39 - BUSB OUT
38 - BUSB OUT
37 - VDD B
36 - VDD B
35 - BUSB OUT
34 - BUSB OUT
33 - GND B
(DS1569 Rev. C)
64 - Pin Plastic Quad Flat Pack (PQFP)
HOLT INTEGRATED CIRCUITS
www.holtic.com
08/06


HI-1569 데이터시트, 핀배열, 회로
HI-1569
PIN DESCRIPTIONS
PIN SYMBOL FUNCTION
DESCRIPTION
1, 40, 50, 55
2, 3
4, 5, 44, 52, 53, 60, 61
6, 7
8, 18, 23, 33
12, 20, 21, 28, 29, 36, 37
14
15
16
25
26
30
31
32
34, 35
38, 39
46
47
48
57
58
62
63
64
9 -11, 13, 17,19, 22, 24, 27
41 - 43, 45, 49, 51, 54, 56, 59
GNDA
BUSA OUT
VDDA
BUSA OUT
GNDB
VDDB
RXB
RXENB
RXB
BUSB IN
BUSB IN
TXINHB
TXB
TXB
BUSB OUT
BUSB OUT
RXA
RXENA
RXA
BUSA IN
BUSA IN
TXINHA
TXA
TXA
N/C
power supply
analog output
power supply
analog output
power supply
power supply
digital output
digital input
digital output
analog input
analog input
digital input
digital input
digital input
analog output
analog output
digital output
digital input
digital output
analog input
analog input
digital input
digital input
digital input
Ground for channel A (Connect ALL pins)
MIL-STD-1533 bus driver A, positive signal
+5 volt power for channel A (Connect ALL pins)
MIL-STD-1533 bus driver A, negative signal
Ground for channel B (Connect ALL pins)
+5 volt power for channel B (Connect ALL pins)
Receiver B output, non-inverted
Receiver B enable. If low, forces RXB and RXB low
Receiver B output, inverted
MIL-STD-1553 bus receiver B, positive signal
MIL-STD-1553 bus receiver B, negative signal
Transmit inhibit, channel B. If high BUSB OUT, BUSB OUT disabled
Transmitter B digital data input, non-inverted
Transmitter B digital data input, inverted
MIL-STD-1533 bus driver B, positive signal
MIL-STD-1533 bus driver B, negative signal
Receiver A output, non-inverted
Receiver B enable. If low, forces RXB and RXB low
Receiver B output, inverted
MIL-STD-1553 bus receiver A, positive signal
MIL-STD-1553 bus receiver A, negative signal
Transmit inhibit, channel A. If high BUSA OUT, BUSA OUT disabled
Transmitter A digital data input, non-inverted
Transmitter A digital data input, inverted
- Not connected. May be left open or connected to power or ground
FUNCTIONAL DESCRIPTION
The HI-1569 data bus transceiver contains differential volt-
age source drivers and differential receivers. It is intended
for applications using a MIL-STD-1553 A/B data bus. The
device produces a trapezoidal output waveform during
transmission.
TRANSMITTER
Data input to the device’s transmitter section is from the
complementary CMOS /TTL inputs TXA/B and TXA/B.
The transmitter accepts Manchester II bi-phase data and
converts it to differential voltages on BUSA/B OUT and
BUSA/B OUT. The transceiver outputs are either direct or
transformer coupled to the MIL-STD-1553 data bus. Both
coupling methods produce a nominal voltage on the bus of
7.5 volts peak to peak.
The transmitter is automatically inhibited and placed in the
high impedance state when both TXA/B and TXA/B are ei-
ther at a logic “1” or logic “0” simultaneously. A logic “1” ap-
plied to the TXINHA/B input will force the transmitter to the
high impedance state, regardless of the state of TXA/B and
TXA/B.
RECEIVER
The receiver accepts bi-phase differential data from the MIL-
STD-1553 bus through a direct or transformer coupled inter-
face. The receiver’s differential input stage drives a filter and
threshold comparator that produces CMOS/TTL data at the
RXA/B and RXA/B output pins.
Each set of receiver outputs can be independently forced to a
logic "0" by setting RXENA or RXENB low.
MIL-STD-1553 BUS INTERFACE
A direct coupled interface (see Figure 2) uses a 1:2.5 ratio
isolation transformer and two 55 ohm isolation resistors
between the transformer and the bus.
In a transformer coupled interface (see Figure 3), the
transceiver is connected to a 1:1.79 isolation transformer
which in turn is connected to a 1:1.4 coupling transformer. The
transformer coupled method also requires two coupling
resistors equal to 75% of the bus characteristic impedence
(Zo) between the coupling transformer and the bus.
HOLT INTEGRATED CIRCUITS
2




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HI-1569 transceiver

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