ACT4455 Aeroflex Circuit Technology, ACT4455 Datasheet

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ACT4455

Manufacturer Part Number
ACT4455
Description
Act 4455 / 4459 Single Supply Transceivers For Mil-std-1553/1760
Manufacturer
Aeroflex Circuit Technology
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ACT4455YH
Manufacturer:
ACTIVE
Quantity:
20 000
Features
• Single 5 Volt Supply Operation
• Low Power Dissipation
• Small Size & Light Weight
• Single Transceiver Save Space & Cost
• Outstanding MIL-STD-1553 performance
• Processed and Screened to Mil-STD-883
• Radiation Hard Dielectric Isolation
• Superior High Frequency Line Transient and
• Input and Output TTL Compatible Design
• DESC SMD# 5962-96741
RX DATA IN
RX DATA IN
TX DATA IN
TX DATA IN
TX INHIBIT
Specs
Monolithic construction for Severe
Environments
Input Ripple Rejection
STROBE
+5V RTN
eroflex Circuit T
+5 V
SINGLE SUPPLY TRANSCEIVERS
Block Diagram (without Transformer)
AMPLIFIER
DRIVER
INPUT
echnology
REFERENCE
ACTIVE
FILTER
ACTIVE
FILTER
ACT 4455 / 4459
– Data Bus Modules For The Future © SCD4455 REV A 1/29/98
FOR MIL-STD-1553/1760
OUTPUT
STAGE
COMP.
COMP.
TX DATA OUT
TX DATA OUT
RX DATA OUT
RX DATA OUT
ACT4455 / 4459 series are next
generation
designs
compliance with MIL-STD-1553A/B
and
smallest packages with low power
consumption and single power supply
operation.
performs
function of inputting and outputting
data through a transformer to the
MIL-STD-1553 data bus.
reflects particular attention to active
filter performance. This results in low
bit and word error rate with superior
waveform purity and minimal zero
crossover
transmitter electrical and thermal
design provides low internal power
dissipation and heat rise at high as
well as low duty cycles.
Transmitter:
bi-phase TTL data at the input and
when coupled to the data bus with a
1:2.5 ratio transformer, isolated on
the data bus side with two 52.5 Ohm
fault isolation resistors, and loaded by
two 70 Ohm terminations, the data
bus signal is typically 7.5 Volts P-P
at A-A' (See Figure 5). When both
DATA and DATA inputs are held low
or
becomes a high impedance and is
“removed” from the line. In addition,
General Description:
The Aeroflex Circuit Technology
The
Design
The Transmitter section accepts
high,
1760
www.aeroflex.com/act1.htm
ACT4455
CIRCUIT TECHNOLOGY
which
of
the
the
monolithic
requirements
distortion.
these
transmitter
front-end
/
provides
4459
transceivers
transceiver
Efficient
in
analog
output
series
the
full

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ACT4455 Summary of contents

Page 1

... COMP. RX DATA OUT ACTIVE COMP. FILTER – Data Bus Modules For The Future © SCD4455 REV A 1/29/98 CIRCUIT TECHNOLOGY www.aeroflex.com/act1.htm General Description: The Aeroflex Circuit Technology ACT4455 / 4459 series are next generation monolithic transceiver designs which provides compliance with MIL-STD-1553A/B and 1760 ...

Page 2

... Figure 2 — Receiver Logic Waveforms Idealized LINE TO LINE INPUT STROBE DATA OUT DATA OUT * See Figure 8 For Actual Waveforms Aeroflex Circuit Technology 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 ...

Page 3

... Delay from 50% point of TX DATA or TX DATA input to zero crossing of differential signal Note 1. Power on or off, measured from 75KHz to 1MHz at point A-A' and transformer self impedance of 3K minimum Aeroflex Circuit Technology Absolute Maximum Ratings (Note: Normal operation conditions require one transceiver on and the other off.) ...

Page 4

... Volts ±0.1 V, bypassed by 2.2 µF (Tantalum recommended) Capacitor minimum. All measurements & cc specifications apply over the temperature range of -55°C to +125°C (case temperature) unless otherwise specified. Note 3: When measured at point A-A’ with ± 10 Volt peak, line to ground 2MHz Note 4: Typical power is measured with V Aeroflex Circuit Technology Condition Symbol TXFMR V IDR 2 ...

Page 5

... TX DATA OUT DATA OUT RX DATA IN RX DATA IN Transformer turns ratios: N1:N2 = 1:2.5 N1:N3 = 1:1.77 Use Technitrol 1553-45 or equivalent Aeroflex Circuit Technology Figure 4 – Transmitter (TX) Output offset * volts 0 Volts * Offset measured at point A-A' in Figure 5 Figure 6 – Power Dissipation vs. Duty Cycle (Total hybrid with one channel transmitting ...

Page 6

... – DATA BUS OUT Point A–A' See Figure DATA OUT DATA OUT Oscilloscope used is a TEK TDS540 with Probe 6139A. Aeroflex Circuit Technology 6 SCD4455 REV A 1/29/98 Plainview NY (516) 694-6700 ...

Page 7

... Aeroflex Circuit Technology Figure 7 – Pin Numbers & Functions ACT4455/4459 Pin # Function 1 TX DATA OUT 2 + DATA OUT 5 TX DATA OUT 6 GROUND + DATA OUT 11 STROBE DATA OUT +5V 16 GROUND DATA IN ...

Page 8

... Aeroflex Circuit Technology 35 South Service Road Plainview New York 11830 Specifications subject to change without notice. Aeroflex Circuit Technology Receiver Data level Normally Low Rx Normally High Rx ACT4455/4459 LCC LEADLESS CHIP CARRIER 0.055 0.045 0.055 0.045 0.028 0.022 0.055 0.045 ...

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