Volt Supply Operation Power Dissipation Outstanding MIL-STD-1553 perfo

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Volt Supply Operation Power Dissipation Outstanding MIL-STD-1553 perfo

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ACT4402 SINGLE TRANSCEIVER MIL-STD-1553/1760
Volt Supply Operation Power Dissipation Outstanding MIL-STD-1553 performance Superior High Frequency Line Transient Input Ripple Rejection Input Output Compatible Design Processed Screened MIL-STD-883 Specs MIL-PRF-38534 Compliant Devices Available Replacement Aeroflex's 3402 2402 Packaging Hermetic Ceramic
Available 24pin Ceramic Housing which smaller than metal plug-in Non-conductive mounting surface package glass beads Small size light weight
CIRCUIT TECHNOLOGY
www.aeroflex.com
General Description
Aeroflex Circuit Technology ACT4402 next generation monolithic transceiver design which provide full compliance MIL-STD-1553A/B 1760 requirements small ceramic package with power consumption. ACT4402 series performs front-end analog function inputting outputting data through transformer MIL-STD-1553 data bus. Design this transceiver reflects particular attention active filter performance. This results word error rate with superior waveform purity minimal zero crossover distortion. Efficient transmitter electrical thermal design provides internal power dissipation heat rise high well duty cycles.
Transmitter
DATA DATA DRIVER DATA ACTIVE FILTER OUTPUT STAGE DATA
INHIBIT (VL) +15V (VCC) -15V GND1 GND2 GND3 DATA DATA CASE STROBE INPUT AMPLIFIER ACTIVE FILTER DATA COMP. REFERENCE COMP. DATA
Block Diagram (Without Transformer)
Transmitter section accepts bi-phase data input when coupled data with 1.4:1 ratio transformer, isolated data side with 52.5 fault isolation resistors, loaded terminations, data signal typically Volts point (See Figure When both DATA DATA inputs held high, transmitter output becomes high impedance "removed" from line. addition, overriding "INHIBIT" input
eroflex Circuit Technology Data Modules Future SCD4402 5/28/99
provides removal transmitter output from line. logic signal applied "INHIBIT" takes priority over condition data inputs disables transmitter (See Transmitter Logic Waveform, Figure Transmitter safely operated indefinite period with (point short circuited 100% duty cycle.
Receiver
Receiver section accepts
bi-phase differential data input produces signals output. outputs DATA DATA, represent positive negative excursions input beyond pre-determined threshold (See Receiver Logic Waveform, Figure pre-set internal thresholds will detect data signals, point Figure exceeding 1.20 Volts reject signals less than Volts when used with
transformer (See Figure transformer data typical connection). level Strobe input inhibits DATA DATA outputs. unused, pull-up Volts recommended.
Figure Transmitter Logic Waveforms Idealized
DATA
DATA
INHIBIT
LINE LINE OUTPUT
Note: DATA DATA inputs must complementary waveforms duty cycle average, with delays between them, must same state during times (both high low).
Figure Receiver Logic Waveforms Idealized (ACT4402)
LINE LINE INPUT
STROBE
DATA
DATA
Note overlap
Aeroflex Circuit Technology
SCD4402 5/28/99 Plainview (516)694-6700
Absolute Maximum Ratings
Operating case temperature Storage case temperature Power supply voltage Logic input voltage Receiver differential input Receiver input voltage (common mode) Driver peak output current Total package power dissipation over full operating case temperature rise Maximum junction case temperature Thermal resistance junction case -55°C +125°C -65°C +150°C -0.3 +0.3 to-18 -0.3 +7.0 -0.3 +5.5 VP-P Watts 10°C 4°C/W
Electrical Characteristics Driver Section
Input Characteristics, DATA DATA (Notes apply) Parameter
Input Current Input Current Input Voltage Input Voltage
Condition
Symbol
IILD IIHD VIHD VIHD
-0.1
-0.2
Unit
Inhibit Characteristics
Input Current Input Current Input Voltage Input Voltage Delay from inhibit, inhibited output Delay from inhibit, active output Differential output noise, inhibit mode Differential output impedance (inhibited) Note Figure Point Point From inhibit ±1.2V Figure VIN=2.7V IILI IIHI VILI VIHI tDXOFF tDXON VNOI -0.1 -0.2 mVP-P
Output Characteristics
Differential output level, Figure Rise fall times(10% output) Figure Output offset, Figure 2.5µS after midpoint crossing parity last word 660µS message Figure Delay from point DATA DATA input zero crossing differential signal.
Aeroflex Circuit Technology
Point Point Point Point
tDXT
VP-P peak
SCD4402 5/28/99 Plainview (516)694-6700
Electrical Characteristics Receiver Section
Parameter
Differential Receiver Input Voltage Range (See Figure Point Common Mode Rejection Ratio (Note State Data Data Output State Data Data Output Delay (average) from Differential Input Zero Crossings DATA DATA Output points Input Threshold Voltage (referred bus) 100KHz-1MHz -0.4
Condition
TXFMR 1.4:1
Symbol
VIDR CMRR tDXT
Unit
VP-P
0.35 0.60 0.75 1.20
VP-P
Strobe Characteristics (Logic Inhibits Output)
Input Current Input Current Input Voltage Input Voltage Strobe Delay (Turn-on Turn-off) 0.4V 2.7V -0.1 -0.2
Power Data
Power Supply Currents Channel Figure
Transmitter Standby
duty cycle
duty cycle
100% duty cycle
Power Supply Voltages
±15V Operating Power Supply Voltage Range Operating Power Supply Voltage Range) +14.25 +15.00 +15.75 -14.25 -15.00 -15.75 +4.50 +5.00 +5.50
Note Power off, measured from 75KHz 1MHz point transformer self impedance minimum 1MHz. Note Power Supplies: Volts ±0.75 Volts ±0.5 bypassed (Tantalum recommended) Capacitor minimum. measurements specifications apply over temperature range -55°C +125°C (case temperature) unless otherwise specified. Note When measured shown Figure with Volt peak, line ground, 2MHz Note Typical power measured with VBUS point
Aeroflex Circuit Technology
SCD4402 5/28/99 Plainview (516)694-6700
Figure Transmitter (TX) Output Offset
Figure Typical 1553 Connections
LAST
Transformer Coupled Stub
Magnified View
OUTPUT OFFSET
ACT4402
DATA
1:1.4 52.5
Volts
OUTPUT OFFSET
DATA
µsec
T1553-2
52.5
DATA DATA
*Offset measured point Figure
Direct Coupled Stub Figure Hybrid Power Dissipation Duty Cycle
ACT4402 3600 3200 2.97W POWER DISSIPATION MILLIWATTS 2800 2400 2000 1600 1200 Typical Hybrid Dissipation Transformer Model Technitrol Part# 1553-2 equivalent DUTY CYCLE PERCENT Note: Vcc= +15V, -15V, +5V, Transformer ratio 1.4:1, (point 7.5VP-P. Typical Hybrid Input Power 1.87W DATA DATA DATA T1553-2 52.5 DATA 1.4:1 52.5
0.270
Configuration Ordering Information
Model Ordering Part
ACT4402 ACT4402-I
Case Style
Ceramic Ceramic
DESC Number
Standby
Normally Normally High
Specifications subject change without notice.
Aeroflex Circuit Technology
SCD4402 5/28/99 Plainview (516)694-6700
Figure Lead Numbers Functions
ACT4402
Function DATA DATA GROUND DATA STROBE GROUND DATA DATA DATA CASE INHIBIT DATA DATA
Aeroflex Circuit Technology
SCD4402 5/28/99 Plainview (516)694-6700
CIRCUIT TECHNOLOGY
Ceramic Package Outline
Pin# Designator
.200
1.270
.620
.030 .010 .050
.150 .019 .015 .610 .590
.012 .008
dimensions inches
Aeroflex Circuit Technology South Service Road Plainview York 11803 www.aeroflex.com
Aeroflex Circuit Technology
Telephone: (516) 694-6700 FAX: (516) 694-6715 Toll Free Inquiries: (800) THE-1553 E-Mail: sales-act@aeroflex.com
SCD4402 5/28/99 Plainview (516)694-6700

Volt Supply Operation Power Dissipation Outstanding MIL-STD-1553 perfo

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