HI-1569
MIL-STD-1553 / 1760
5V Monolithic Dual Transceiver
DESCRIPTION
FEATURES
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.
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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
Less than 1.0W maximum power dissipation
Military processing options
Industry standard 64-pin PQFP package
March 2003
(DS1569 Rev. B)
03/03
HOLT INTEGRATED CIRCUITS
www.holtic.com
PIN CONFIGURATION
(Top View)
64 - Pin Plastic Quad Flat Pack (PQFP)
HI-1569
64
-
63
-
TXA
62
-
TXINHA
61
-
VDD
A
60
-
VDD
A
59
-
N/C
58
-
IN
57
-
BUSA
IN
56
-
N/C
55
-
GND
A
54
-
N/C
53
-
VDD
A
52
-
VDD
A
51
-
N/C
50
-
GND
A
49
-
N/C
TXA
BUSA
48 -
47 - RXENA
46 - RXA
45 - N/C
44 - VDD A
43 - N/C
42 - N/C
41 - N/C
40 - GND A
39 -
OUT
38 -
OUT
37 - VDD B
36 - VDD B
35 - BUSB OUT
34 - BUSB OUT
33 - GND B
RXA
BUSB
BUSB
N/C
-1
7
GND
B
-1
8
N/C
-1
9
VDD
B
-2
0
VDD
B
-2
1
N/C
-2
2
GND
B
-2
3
N/C
-2
4
BUSB
IN
-2
5
IN
-2
6
N/C
-2
7
VDD
B
-2
8
VDD
B
-2
9
TXINHB
-3
0
TXB
-3
1
-3
2
BUSB
TXB
GND A - 1
BUSA OUT - 2
BUSA OUT - 3
VDD A - 4
VDD A - 5
OUT - 6
OUT - 7
GND B - 8
N/C - 9
N/C - 10
N/C - 11
VDD B - 12
N/C - 13
RXB - 14
RXENB - 15
- 16
BUSA
BUSA
RXB
PIN DESCRIPTIONS
PIN
SYMBOL
FUNCTION
DESCRIPTION
1, 40, 50, 55
GNDA
power supply
Ground for channel A (Connect ALL pins)
2, 3
BUSA OUT
analog output
MIL-STD-1533 bus driver A, positive signal
4, 5, 44, 52, 53, 60, 61
VDDA
power supply
+5 volt power for channel A (Connect ALL pins)
6, 7
OUT
analog output
8, 18, 23, 33
GNDB
power supply
Ground for channel B (Connect ALL pins)
12, 20, 21, 28, 29, 36, 37
VDDB
14
16
25
BUSB IN
analog input
26
30
31
32
34, 35
BUSB OUT
38, 39
BUSA
MIL-STD-1533 bus driver A, negative signal
power supply
+5 volt power for channel B (Connect ALL pins)
RXB
digital output
Receiver B output, non-inverted
15
RXENB
digital input
Receiver B enable. If low, forces RXB and
low
digital output
Receiver B output, inverted
MIL-STD-1553 bus receiver B, positive signal
IN
analog input
MIL-STD-1553 bus receiver B, negative signal
TXINHB
digital input
Transmit inhibit, channel B. If high BUSB OUT,
OUT disabled
TXB
digital input
Transmitter B digital data input, non-inverted
digital input
Transmitter B digital data input, inverted
analog output
MIL-STD-1533 bus driver B, positive signal
OUT
analog output
MIL-STD-1533 bus driver B, negative signal
46
RXA
digital output
Receiver A output, non-inverted
47
RXENA
digital input
Receiver B enable. If low, forces RXB and
low
48
digital output
Receiver B output, inverted
57
BUSA IN
analog input
MIL-STD-1553 bus receiver A, positive signal
58
IN
analog input
MIL-STD-1553 bus receiver A, negative signal
62
TXINHA
digital input
Transmit inhibit, channel A. If high BUSA OUT,
OUT disabled
63
TXA
digital input
Transmitter A digital data input, non-inverted
64
digital input
Transmitter A digital data input, inverted
9 -11, 13, 17,19, 22, 24, 27
N/C
-
Not connected. May be left open or connected to power or ground
41 - 43, 45, 49, 51, 54, 56, 59
RXB
RXB
BUSB
BUSB
TXB
BUSB
RXB
RXA
BUSA
BUSA
TXA
HI-1569
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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.
Data input to the device's transmitter section is from the
complementary CMOS /TTL inputs TXA/B and
/ .
The transmitter accepts Manchester II bi-phase data and
converts it to differential voltages on
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.
TRANSMITTER
TXA B
BUSA/B OUT and
/
The transmitter is automatically inhibited and placed in the
high impedance state when both TXA/B and
/ 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
/
BUSA B OUT.
TXA B
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
/ output pins.
RXA B
Each set of receiver outputs can be independently forced to a
logic "0" by setting RXENA or RXENB low.
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.
MIL-STD-1553 BUS INTERFACE
FUNCTIONAL DESCRIPTION
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
Operating Voltage
VDD
4.75
5
5.25
V
Total Supply Current
ICC1
Not Transmitting
14
22
mA
ICC2
Transmit one channel @
340
mA
50% duty cycle
ICC3
Transmit one channel @
550
mA
100% duty cycle
Power Dissipation
PD1
Not Transmitting
0.11
W
PD2
Transmit one channel @
0.70
0.95
W
100% duty cycle
Min. Input Voltage
(HI)
V
Digital inputs
2.0
1.4
V
Max. Input Voltage
(LO)
V
Digital inputs
1.4
0.8
V
Min. Input Current
(HI)
I
V
= 4.9V, Digital inputs
20
A
Max. Input Current
(LO)
I
V
= 0.1V, Digital inputs
-20
A
Min. Output Voltage
(HI)
V
I
= -4mA, Digital outputs
4.0
V
Max. Output Voltage
(LO)
V
I
= 4.0mA, Digital outputs
0.4
V
Input resistance
R
Differential
20
Kohm
Input capacitance
C
Differential
5
pF
Common mode rejection ratio
CMRR
40
dB
Input Level
V
Differential
9
Vp-p
Input common mode voltage
V
-5.0
5.0
V-pk
Threshold Voltage - Direct-coupled
Detect
1.15
20.0
No Detect
0.28
Theshold Voltage -
Detect
0.86
14.0
No Detect
0.20
200
400
V
1 Mhz Sine Wave
Vp-p
V
(Measured at Point "A " in Figure 2)
Vp-p
Transformer-coupled
V
1 MHz Sine Wave
Vp-p
V
(Measured at Point "A " in Figure 3)
Vp-p
=
IH
IL
IH
IH
IL
IL
OH
OUT
IH
OUT
D
RECEIVER
(Measured at Point "A " in Figure 2 unless otherwise specified)
IN
IN
IN
ICM
THD
THND
THD
THND
D
T
NOTE:
Stresses above absolute maximum
ratings or outside recommended operating
conditions may cause permanent damage to the
device. These are stress ratings only. Operation
at the limits is not recommended.
Supply voltage (
Logic input voltage range
Power dissipation at 25C
1.0 W
Solder Temperature
275C for 10 sec.
Junction Temperature
175C
Storage Temperature
-65C to +150C
VDD)
-0.3 V to +7 V
-0.3 V dc to +5.5 V
Receiver differential voltage
10 Vp-p
Driver peak output current
+1.0 A
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
Supply Voltage
Temperature Range
Industrial Screening.........-40C to +85C
Hi-Temp Screening........-55C to +125C
Military Screening..........-55C to +125C
VDD....................................... 5V... 5%
DC ELECTRICAL CHARACTERISTICS
VDD = 5.0V, GND = 0V, T = Operating Temperature Range (unless otherwise specified).
A
HI-1569
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PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
Output Voltage
Direct coupled
35 ohm load
6.0
9.0
Vp-p
(Measured at Point "A " in Figure 2)
70
20.0
27.0
Vp-p
Output Noise
V
Differential, inhibited
10.0
mVp-p
Output Dynamic Offset Voltage
V
-90
90
mV
-250
250
mV
Output resistance
R
Differential, not transmitting
10
Kohm
Output Capacitance
C
1 MHz sine wave
15
pF
TRANSMITTER
(Measured at Point "A " in Figure 2 unless otherwise specified)
D
D
V
Transformer coupled
V
ohm load
(Measured at Point "A " in Figure 3)
Direct coupled
35 ohm load
(Measured at Point "A " in Figure 2)
Transformer coupled
V
70 ohm load
(Measured at Point "A " in Figure 3)
OUT
OUT
DYN
T
D
T
ON
DYN
OUT
OUT
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Receiver Enable Delay
tREN
From RXENA/B rising or falling edge to
40
ns
RXA/B or
Driver Delay
tDT
TXA/B, TXA/B to BUSA/B OUT,
OUT
150
ns
Rise time
tr
35 ohm load
100
300
ns
Fall Time
tf
35 ohm load
100
300
ns
Inhibit Delay
tDI-H
Inhibited output
100
ns
tDI-L
Active output
150
ns
RECEIVER
TRANSMITTER
(Measured at Point "A " in Figure 2)
(Measured at Point "A " in Figure 2)
D
D
Receiver Delay
tDR
From input zero crossing to RXA/B or
450
ns
RXA/B
RXA/B
BUSA/B
DC ELECTRICAL CHARACTERISTICS (cont.)
VDD = 5.0V, GND = 0V, T = Operating Temperature Range (unless otherwise specified).
A
AC ELECTRICAL CHARACTERISTICS
VDD = 5.0V, GND = 0V, T =Operating Temperature Range (unless otherwise specified).
A
TXA/B
TXA/B
TXINHA/B
TRANSMITTER
RECEIVER
1:2.5
Point "A "
D
55
W
55
W
35
W
2.5:1
55
W
55
W
35
W
RXENA/B
BUSA/B OUT
BUSA/B OUT
RXA/B
RXA/B
Figure 2. Direct Coupled Test Circuits
HI-1569
Isolation
Transformer
Isolation
Transformer
Point "A "
D
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