AEROFLEX ARX4435N

ARX4435N Transceiver
for Macair H009 Specification
Preliminary
Features
• ARX4435N transceiver meets Macair H009 data bus
specifications
• Transmitter can be used to drive clock signal line
• Operates with ±15 Volts to ±12 Volts power supplies
• Low power direct replacement for CT1641 and CT1816
devices
• Voltage source output for higher bus drive power
• Plug-in and flat package available
• Monolithic construction using linear ASICs
• Processed and screened to MIL-STD-883 specs
• MIL-PRF-38534 compliant devices available
X
LE
F N
O 35
R 4 9
E 4 37
A X 8
R -8
A A
S
U
X P
LE F
F N
O 5 9
R 3 7
E 44 3
A X -88
R A
A S
U
ARX4435NFP / ARX4435N Transceivers
CIRCUIT TECHNOLOGY
www.aeroflex.com
General Description
The
Aeroflex
Laboratories
Incorporated model ARX4435N and
ARX4435NFP are new generation
monolithic
transceivers
which
provides compliance with Macair
H009 data bus requirements.
The ARX4435N and ARX4435NFP
perform the front-end analog function
of inputting and outputting data
through a transformer to a H009 data
bus.
Design of these transceivers
reflects particular attention to active
filter performance.This results in low
bit and word error rate with superior
waveform purity and minimal zero
crossover distortion. The ARX4435N
series active filter design has
additional high frequency roll-off to
provide the required low harmonic
distortion
waveform
without
increasing the delay characteristics
significantly.
Efficient transmitter electrical and
thermal design results in low internal
power dissipation and temperature
rise at high and low duty cycle.
Transmitter
TX DATA OUT
TX DATA IN
DRIVER
SHAPING
TX DATA IN
OUTPUT
STAGE
TX DATA OUT
COMP.
RX DATA OUT
V+
TX INHIBIT
+V TH
EXT THRESHOLD
DATA
RX DATA IN
+
–
+
DATA
~4K
-VTH
EXT THRESHOLD
DATA
+5 V
-12V or -15V
RX DATA IN
~4K
–
DATA
SET INTERNAL
THRESHOLD
V-
INPUT
AMP
ACTIVE
FILTER
COMP.
+15V or +12V
STROBE
Block Diagram (without Transformer)
RX DATA OUT
The Transmitter section accepts
complementary TTL data at the input,
and when coupled to the data bus
with a 1:1 transformer, isolated on the
transceiver side with two 35 Ohm
fault isolation resistors, and loaded by
a 170 Ohm termination, the data bus
signal produced is 20 Volts nominal
P-P at A-A’. (See Figure 5.) When
both DATA and DATA inputs are held
low or high, the transmitter output
impedance is low, and signal is
“removed” from the line. In addition,
eroflex Circuit Technology – Data Bus Modules For The Future © SCD4435N REV A 7/27/00
represent positive and negative excursions of the
input beyond a pre-determined threshold (See
Receiver Logic Waveforms, Figure 2).
The internal threshold is nominally set to detect
data bus signals exceeding 1.05 Volts P-P and reject
signals less than 0.6 Volts P-P when used with a 1:1
turns ratio transformer (See Figure 5 for transformer
data and typical connection).
A low level at the Strobe input inhibits the DATA and
DATA outputs. If unused, a 2K pull-up to +5 Volts is
recommended.
an overriding “INHIBIT” input returns the output
impedance to a high state. A logic “1” applied to the
“INHIBIT” takes priority over the condition of the data
inputs and disables the transmitter (See Transmitter
Logic Waveforms, Figure 1).
The transmitter utilizes an active filter to suppress
harmonics above 1 MHz to meet H009 Macair
specifications. The transmitter may be safely operated
for an indefinite period with the output short circuited
at 100% duty cycle.
Receiver
The Receiver section accepts bi-phase differential
data at the input and produces two TTL signals at the
output. The outputs are DATA and DATA, and
Figure 1 - Transmitter Logic Waveforms
Region 1
2
3
DATA IN
DATA IN
INHIBIT
LINE TO LINE
OUTPUT
Notes: 1. Data and DATA inputs must be complementry waveforms or 50% duty cycle average, with no delays between them, and in the same state during
the off time (both high and low).
2. Region 1 ; no output signal, High Z state, (Receive Mode), Region 2; No Output signal, Low Z state, (Terminate Mode), Region 3, Transmitter signal
on, low Z.
Figure 2 - Receiver Logic Waveforms
LINE TO LINE
INPUT
Rx DATA OUT
Note overlap
Rx DATA OUT
Note: Waveforms shown are for normally low devices. For normally high receiver output
level devices, the receiver outputs are swapped as shown by the dashed lines
Aeroflex Circuit Technology
2
SCD4435N REV A 7/27/00 Plainview NY (516) 694-6700
Absolute Maximum Ratings
Operating case temperature
-55°C to +125°C
Storage case temperature
-65°C to +150 °C
Power supply Voltages
±15 V P.S. to ±18V MAX
Logic input Voltage
+5 V P.S. to +7V MAX
-0.3 V to +5.5 V
Receiver differential input
±40 V
Receiver input voltage (common mode)
±10V
Driver peak output current
150 mA
Total package power dissipation over the full operating
case temperature range
3.0 Watts
Maximum junction to case temperature rise
(100 % duty cycle)
15°C
Junction-Case thermal resistance
5°C/W
Electrical Characteristics, Transmitter Section
Input Characteristics, TX DATA in or TX DATA in
Parameter
Condition
Symbol
“0” Input Current
VIN = 0.4 V
“1” Input Current
VIN = 2.7 V
Typ
Max
Unit
IILD
-0.2
-0.4
mA
IIHD
1.0
40
µA
0.7
V
“0” Input Voltage
VIHD
“1” Input Voltage
VIHD
Min
V
2.0
Inhibit Characteristics
"0" Input Current
VIN=0.4V
"1" Input Current
VIN=2.7V
IILI
-0.2
-0.4
IIHI
1.0
40
µA
0.7
V
"0" Input Voltage
VILI
"1" Input Voltage
VIHI
mA
V
2
Delay from TX inhibit(0→1) to inhibited output
Note 1
tDXOFF
350
700
nS
Delay from TX inhibit, (1→0) to active output
Note 1
tDXON
200
500
nS
VNOI
0.8
10
mV p-p
Differential output noise, inhibit mode
Differential output impedance (inhibited)
Note 2
ZOI
10K
RL=170 Ω
VO
17
tr
200
Ω
Output Characteristics
Differential output level, pt A-A on Fig. 5
Rise and fall times
(10% to 90% of p-p output), pt A-A on Fig. 5
Output offset at pt A-A on Fig. 5, 2.5 µS after
midpoint crossing of the last bit
RL=170 Ω
Delay from 50% point of TX DATA or
TX DATA input to zero crossing of differential signal. (note1)
Aeroflex Circuit Technology
VOS
tDTX
3
21
220
24
V p-p
300
nS
±265
mV peak
350
nS
SCD4435N REV A 7/27/00 Plainview NY (516) 694-6700
Electrical Characteristics, Receiver Section
Parameter
Differential Input Impedance (Note 1)
Condition
Symbol
Min
f= 1MHz
ZIn
20K
Differential Input Voltage Range
Input Common Mode Voltage Range
Common Mode Rejection Ratio
Typ
Max
Unit
Ω
VIDR
V p-p
40
Note 1
VICR
10
V p-p
Point A-A on
Figure 5
CMRR
40
dB
Strobe Characteristics (Logic “O” inhibits output)
"0" Input Current
VS=0.4 V
IIL
-0.2
-0.4
mA
"1" Input Current
VS=2.7 V
IIH
1.0
+40
µA
0.7
V
"0" Input Voltage
VIL
"1" Input Voltage
VIH
Strobe Delay (turn-on or turn-off)
V
2.0
tSD
Note 1.
150
nS
Threshold Characteristics (Sinewave input)
Internal Threshold Voltage
(Referred to the bus) Pins 6 and 11 to GND
100KHz-1MHz
External Threshold
Pins 6 & 11 open, Pin 5 and Pin 12 with a 10K resistor to
GND, 1MHZ Sinewave applied to point A-A
VTH
0.60
0.80
1.15
V P-P
VTH(EXT)
1.9
2.2
2.5
V P-P
2.5
3.6
Output Characteristics, RX DATA and RX DATA
"1" State
IOH =-0.4 mA
VOH
"0" State
IOL = 4 mA
VOL
0.35
0.5
V
tDRX
275
450
nS
Delay, (average) from differential input zero
crossings to RX DATA and RX DATA output
50% points
V
Power Data
Power Supply Currents (Power supplies set at +15V, -15V, +5V)
+V
-V
I
CC
I
EE
Duty Cycle
5V
IL
TYP
MAX
TYP
MAX
Transmitter Standby
5mA
10mA
25mA
35mA
25% duty cycle
20mA
30mA
40mA
60mA
50% duty cycle
40mA
60mA
60mA
80mA
100% duty cycle
85mA
120mA
105mA
140mA
TYP
MAX
25mA
35mA
Recommended Power Supply Voltage Range
Aeroflex Circuit Technology
+V
+11.4 Volts to +15.75 Volts
-V
-11.4 Volts to -15.75 Volts
Logic
+4.5 Volts to +5.5 Volts
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SCD4435N REV A 7/27/00 Plainview NY (516) 694-6700
Figure 3 – Transmitter (TX) Output Wave form
Figure 4 – Transmitter (TX) Output offset
LAST BIT
tf*
90%
Magnified View
17V P-P MIN
24V P-P MAX
OUTPUT OFFSET
*
OUTPUT OFFSET
*
0 volts
0 Volts
10%
2.5 µsec
tr*
*Offset measured at point A-A’ in Fig 5
* Rise and fall times measured at point A-A’ in Fig 5
Figure 5 – Typical Transformer connection
Figure 6 – Power Dissipation vs. Duty Cycle
TX DATA OUT
POWER DISSIPATION
WATTS
4.0
35Ω N1:N2
A
170Ω
A’
TX DATA OUT
35Ω
RX DATA IN
3.5
3.0
(TYPICAL)
2.5
2.0
1.5
1.0
0.5
RX DATA IN
0
0
Transformer turns ratio:
N1:N2 = 1:1
Use Aeroflex 25T1553-1
10
20
30
40
50
60
70
80
90 100
DUTY CYCLE, PERCENT
Notes:
1. Characteristics guaranteed by design, not production tested.
2. Measured at 1mHz at point A-A’, power on or off.
3. Specifications apply over the temperature range of -55°C to +125°C (case temperature)
unless otherwise noted.
4. All typical values are measured at +25°C.
Aeroflex Circuit Technology
5
SCD4435N REV A 7/27/00 Plainview NY (516) 694-6700
CIRCUIT TECHNOLOGY
Package Configurations and Pinouts
Pin Connections
PLUG-IN PACKAGE
1.27 MAX
1.10
24
13
1.27
MAX
12
Designator
Pin 1 & ESD
0.24
MIN
0.018 DIA.
±0.002
FLAT PACKAGE
1. TX DATA OUT
2. TX DATA OUT
3. TX GND (+5V)
4. +15V (TX)
5. EXT. DATA THRES
6. INT. DATA THRES
7. RX DATA OUT
8. STROBE
9. RX GND (+5V)
10. RXDATA OUT
1.10
11. INT DATA THRES
12. EXT DATA THRES
13. +15V (RX)
14. N.C.
15. RX DATA IN
16. RX DATA IN
17. GND
18. CASE GND
0.175 19. -15V (RX)
MAX 20. +5V
21. TX INHIBIT
22. TX DATA IN
23. TX DATA IN
24. -15V (TX)
1.27 MAX
0.017
±0.002
Designator
Pin 1 & ESD
1.27 MAX
0.10 Typ
0.400
MAX
2 sides
0.009
±0.002
0.167 for Low Profile Flat Pack
0.200 for Std Flat Pack
0.100
0.080 ±0.015
Notes 1. Dimensions shown are in inches.
2. Pins are equally spaced at 0.100±0.002 tolerance non-cumulative each row.
Configurations and Ordering Information
Model No.
DESC No.
Receiver Data level
Case
Specs.
ARX4435N
To Be Assigned
Normally High
Plug In
H009 Macair
ARX4435N-FP
To Be Assigned
Normally High
Flat Pack
H009 Macair
The information contained in this data sheet is believed to be accurate; however, Aeroflex Laboratories Incorporated assumes no
responsibility for its use, and no license or rights are granted by implication or otherise in connection therewith.
Specifications subject to change without notice.
Aeroflex Circuit Technology
35 South Service Road
Plainview New York 11803
www.aeroflex.com
Aeroflex Circuit Technology
Telephone: (516) 694-6700
FAX:
(516) 694-6715
Toll Free Inquiries: (800) 843-1553
E-Mail: sales-act@aeroflex.com
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SCD4435N REV A 7/27/00 Plainview NY (516) 694-6700