Datasheet ARX4810-201-3, ARX4810-201-2, ARX4810-201-1, ARX4810, ARX4811-2 Datasheet (ACT)

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ARX4810 & 4810FP Universal Dual

Transceivers

for MIL-STD-1553

& MACAIR A3818, A5690, A5232 & A4905

Features

• World’s smallest dual "Universal Transceiver"

0.3" X 1.2" Package

• Dual transceiver meets military data bus requirements, MIL-STD-1553 and Macair specs

• Low power dissipation at full output power

• +5 / -15 Volt Power Supply Operation

• Voltage source output for higher bus drive power

• Monolithic construction using linear ASICs

• Processed and screened to MIL-STD-883 specs

• MIL-PRF-38534 Compliant Devices Available

• DESC SMD (Standard Military Drawing)

AEROFLEX

ARX 4810

USA-88379

ARX4810 Dual Universal Transceiver

TX DATA IN

TX INHIBIT

+5 V

-15 V to -12V

GROUND

STROBE

DRIVER

INPUT AMP

SHAPING

REFERENCE

ACTI VE FILTER

OUTPUT STAGE

COMP.

Block Diagram (without transformer), 1/2 of unit shown

TX/RX

RX DATA OUT

CIRCUIT TECHNOLOGY

www.aeroflex.com

General Description

The Aeroflex Circuit Technology Models ARX4810 and ARX4810FP are new generation monolithic transceivers which provide full compliance with MIL-STD-1553 and Macair data bus requirements in the smallest packages with low power consumption and two power supply operation.

The dual channel Model ARX4810 and Model ARX4810FP perform the front-end analog function of inputting and outputting data through a transformer to a MIL-STD-1553 or Macair 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. Efficient transmitter electrical and thermal design provides low internal power dissipation and heat rise at high as well as low duty cycles.

Each channel of the dual transceiver is completely separate from the other and fully independent. This includes power leads as well as signal lines. Hence, each channel may be connected to a different data bus with no interaction.

Transmitter

The Transmitter section accepts bi-phase TTL data at the input and when coupled to the data bus with a 1:1 transformer, isolated on the data bus side with two 52.5 Ohm fault isolation resistors, and loaded by two

eroflex Circuit T

echnology

– Data Bus Modules For The Future © SCD4810 REV B 8/12/98

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70 Ohm terminations plus additional receivers, the data bus signal produced is 7.5 volts nominal P-P at A-A’. (See Figure 5) When both DATA and DATA

inputs are held low or high, the transmitter output becomes a high impedance and is “removed” from the line. In addition, an overriding “INHIBIT input provides for the removal of the transmitter output from the line. A logic “1” applied to the “INHIBIT” takes priority over the condition of the data inputs and disables the transmitter. (See Transmitter Logic Waveform, Figure 1.) The transceiver utilizes an active filter to suppress harmonics above

Figure 1 – Transmitter Logic Waveforms

DATA IN

1 MHz to meet Macair specifications A-3818, A-4905, A-5232 and A-5690. The Transmitter may be safely operated at 100% duty cyclefor an indefinite period into a short circuited, the 1553 or Macair bus.

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 represent positive and negative excursions of the input beyond a pre-determined threshold.(See Receiver Logic Waveform Figure 2).

The pre-set internal thresholds will detect data bus signals exceeding

1.150 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.)

DATA IN

INHIBIT

LINE TO LINE

OUTPUT

NOTES:

1. DATA and DATA

2. DATA and DATA

inputs must be complementar y waveforms or 50% duty cycle average, with no delays between them.

must be in the same state during off time (both high or low).

Figure 2 – Receiver Logic Waveforms

LINE TO LINE INPUT

DATA OUT

NOTE: Waveforms shown are for normally low devices. For nor mally high receiver output

level devices,

Aeroflex Circuit Technolo gy SCD4810 REV B 8/12/98 Plainview NY (516) 694-6700

the receiver outputs are swapped as shown by the dashed lines.

Note overlap

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Absolute Maximum Ratings

Operating case temperature -55°C to +125°C

Storage case temperature -65°C to +150 °C

Negative Power supply Voltage -15 V P.S. to -18V MAX

Positive Power Supply Voltage -0.3 V to +5.5 V

Receiver differential input ±10 V

Receiver input voltage (common mode) ±5 V

Driver peak output current 300 mA

Total package power dissipation over the full operating case temperature rise

Maximum junction to case temperature rise for the hottest device

Thermal resistance for the hottest device, junction to bottom of case

(Note. Normal operation conditions require one transmitter on and the

other off at any given time, with a maximum dissi pation of 3.2 watts.

4 Watts

6° C

3° C/W

Electrical Characteristics, Driver Section

Input Characteristics, TX DATA in or TX DATA in

Parameter Condition Symbol Min Typ Max Unit

)

"0" Input Current VIN = 0.4 V I

"1" Input Current V

= 2.7 V I

"0" Input Voltage V

"1" Input Voltage V

ILD

IHD

-0.25 -0.4 mA

140 µA

0.7 V

2.0 V

Inhibit Characteristics

"0" Input Current VIN = 0.4V I

"1" Input Current V

= 2.7V I

"0" Input Voltage V

"1" Input Voltage V

Delay from TX inhibit,(0→1) to inhibited output Note 1

Delay from TX inhibit, (1→0) to active output Note 1

Differential output noise, inhibit mode V

Differential output impedance (inhibited) Note 2 Z

Note 1. Characteristics guaranteed by design, not production tested .

ILI

IHI

ILI

IHI

DXOFF

DXON

NOI

-0.25 -0.4 mA

1.0 40 µA

0.7 V

240 350 nS

210 350 nS

210mV p-p

Output Characteristics

Differential output level RL = 35Ω VO6 6.8 7.7 V p-p

Ω

Rise and fall times (10% to 90% of p-p output)

200 240 300 nS

Output offset at point A-A’ on Fig 5., 2.5 µS after midpoint crossing of the parity bit of the last word

= 35Ω V

±90 mV peak

of a 660µS message

Delay from 50% point of TX DATA or TX DATA input to zero crossing of differential signal

Note 1

DTX

260 350 nS

Note 2. Measured at 1MHz from bus side of transformer after contribution from transformer is accounted for.

Aeroflex Circuit Technology SCD4810 REV B 8/12/98 Plainview NY (516) 694-6700

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Electrical Characteristics, Receiver Section

Parameter Condition Sym Min Typ Max Unit

Differential Input Impedance f = 1MHz Z

Differential Voltage Range V

Input Common Mode Voltage Range Note 1 V

IDR

ICR

20K

±4 V peak

±2.5 V peak

Common Mode Rejection Ratio Note 3 Note 1 CMRR 40 dB

Strobe Characteristics (Logic "O" inhibits output)

"0" Input Current VS = 0.4 V I

"1" Input Current Vs = 2.7V I

"0" Input Voltage V

"1" Input Voltage V

Strobe Delay (turn-on or turn-off) Note 1 t

if not used, a 1K pullup to 5 V is recommended

2.0 V

-0.25 -0.4 mA

1 +40 µA

0.7 V

10 78 nS

Threshold Characteristics (Sinewave input )

Input Threshold Voltage (referred to the bus)

100KHz-1MHz VTH 0.60 0.8 1.15 V

Output Characteristics, RX DATA and RX DATA

"1" State

"0" State

= -0.4 mA V

= 4 mA V

2.5 3.4 V

0.3 0.5 V

Ω

P-P

Delay, (average) from differential input zero crossings to RX DATA

and RX DATA output 50% points

DRX

280 450 nS

Power Data

Maximum Currents, per channel (Power supplies used are -15V, and +5V)

Duty Cycle -V +V and Logic

Transmitter Standby 42 mA 48 mA

25% duty cycle, Note 1 85mA 90 mA

50% duty cycle 105 mA 110 mA

100% duty cycle, Note 1 140 mA 145 mA

Power supply Voltages

-V -14.25 Volts to -15.75 Volts

Logic and +V 4.5 Volts to 5.5 Volts

Note 3. Measured at the bus side of the transformer, including the contribution from the transformer. Note 4. V Note 5. Specifications apply over the case temperature range of -55°C to +125°C unless otherwise specfied. Note 6. All typical values are measured at +25°C Note 7. A 1uf, 10 Volt capacitor is required on the TX/RX terminal for each transceiver as shown in Figure 5. A Sprague 194D type (.05" W x .10" L x .05" H ) is suggested.

= 5 Volts ±0.1 V, for all measurements unless otherwise specified.

Aeroflex Circuit Technology SCD4810 REV B 8/12/98 Plainview NY (516) 694-6700

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Figure 3 – Transmitter (TX) Output Wave form Figure 4 – Transmitter (TX) Output offset

LAST BIT

tf*

90%

6.5V P-P MIN

8.5V P-P MAX

10%

tr*

* Rise and fall times measured at point A-A’ in Fig 5

0 Volts

0 volts

2.5 µsec

*Offset measured at point A-A’ in Fig 5

Magnified View

Figure 5 – Typical Transformer connection Figure 6 – Power Dissipation vs. Duty Cycle

(per channel)

TX DATA OUT

D.U. T

TX DATA

OUT

RX DATA

RX DATA IN

Ω

1uf, 10 V

N1:N2

B’

Transformer turns ratios: N1:N2 = 1:1 N1:N3 = 1:0.71 Use Aeroflex 25T1553-1

52.5

Ctr

tap

Ω

A’

Ω

N1:N3 for stub coupling

Ω

4.0

3.5

3.0

2.5

2.0

WATTS

1.5

POWER DISSIPATION

1.0

0.5

0 10 20 30 40 50 60 70 80 90 100

TYPICAL

DUTY CYCLE, PERCENT

OUTPUT OFFSET*

Configurations and Ordering Information

Model No. DESC No. Receiver Data level Case Configuration

ARX4810 5962-TBA Normally High Plug-In Dual

ARX4810-201-1 5962-9550501HXC Normally High Flat Pkg (.175 Lead) Dual

ARX4810-201-2 5962-9550501HXA Normally High Flat Pkg (.175 Lead) Dual

ARX4810-201-3

5962-9550501HXA or C

ARX4810-203-1 5962-9550501HYC Normally High Flat Pkg (.300 Lead) Dual

ARX4810-203-2 5962-9550501HYA Normally High Flat Pkg (.300 Lead) Dual

ARX4810-203-3

5962-9550501HYA or C

ARX4811 5962-TBA Normally Low Plug-In Dual

ARX4811-2 5962-TBA Normally Low Flat Package Dual

Aeroflex Circuit Technology SCD4810 REV B 8/12/98 Plainview NY (516) 694-6700

Normally High Flat Pkg (.175 Lead) Dual

Normally High Flat Pkg (.300 Lead) Dual

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Flat Package

CIRCUIT TECHNOLOGY

Package Dimensions and Pin Outs

1.200 MAX

1.000

10 Equal Spaces @.100

.040

.018 ±.002

DIP Package

1.200 MAX

1.000

10 Equal Spaces @.100

.030 ±.010

.175 MIN

.300 MIN

.140 MAX

.065 ±.015

.310 MAX

.010 ±.002

TYP

.140 MAX

.170

MIN

Pin Numbers & Functions

Pin # Function Channel

1 INHIBIT A

2TX DATA IN A

3TX DATA

4STROBE

5 GROUND A

6RX DATA

7RX DATA OUT B

8TX / RX

9TX / RX B

10 -15V B

11 +5V B

12 INHIBIT B

13 TX DATA IN B

14 TX DATA

15 STROBE

IN A

OUT B

IN B

.310

.300 ±.010

MAX

Notes

1. Dimensions shown are in inches

Specifications subject to change without notice.

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Aeroflex Circuit Technology SCD4810 REV B 8/12/98 Plainview NY (516) 694-6700

Toll Free Inquiries: 1-(800) THE-1553

Telephone: (516) 694-6700 FAX: (516) 694-6715

16 GROUND B

17 RX DATA

18 RX DATA OUT A

19 TX / RX

20 TX / RX A

21 -15V A

22 +5V A

OUT A