Datasheet Standard Products ACT4453 Single Supply Dual Transceiver for MIL-STD-1553A/B, MIL-STD-1760 & SAE-AS15531 www.aeroflex.com/Avionics June 29, 2015 FEATURES Single +5V power supply Outstanding MIL-STD-1553 / SAE-AS15531 performance Monolithic construction Input and output TTL compatible design Designed for commercial, industrial and aerospace applications MIL-PRF-38534 compliant devices available Aeroflex-Plainview is a Class H & K MIL-PRF-38534 manufacturer 1.9"L x .78"W, 36 lead, Dual-in-line or Flat package, hermetic package Available on DLA SMD 5962-89522 GENERAL DESCRIPTION The radiation tolerant ACT4453 is the next generation monolithic transceiver design which provides full compliance with MIL-STD-1553A/B, MIL-STD-1760 and meets SAE-AS15531 requirements in the smallest packages with low power consumption and single power supply operation. The series performs the front-end analog function of inputting and outputting data through a transformer to the MIL-STD-1553 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 1:2.12 ratio transformer the data bus signal is typically 7.0 Volts 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 Figure 1 Transmitter Logic Waveform). The Transmitter may be safely operated for an indefinite period with the bus (point A-A') 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 represent positive and negative excursions of the input beyond a pre-determined threshold (See Figure 2 Receiver Logic Waveform). The pre-set internal thresholds will detect data bus signals exceeding 1.20 Volts P-P and reject signals less than 0.6 Volts P-P when used with a transformer (See Figure 5 for transformer data and typical connections). A low level at the Strobe input inhibits the DATA and DATA outputs (Pin is internally pulled up). SCD4453 Rev F TX DATA IN TX DATA IN TX INHIBIT +5 V 35 (26) DRIVER 36 (27) 1 (10) TX DATA OUT ACTIVE FILTER OUTPUT STAGE 2 (11) TX DATA OUT REFERENCE COMP. 8 (17) RX DATA OUT ACTIVE FILTER COMP. 5 (14) RX DATA OUT 34 (25) 33 (24) 3,7,31 +5V RTN (12,16,22) 9 CASE RX DATA IN RX DATA IN STROBE 30 (21) INPUT AMPLIFIER 29 (20) 6 (15) BLOCK DIAGRAM (WITHOUT TRANSFORMER) CHANNEL A (CHANNEL B) DATA IN DATA IN INHIBIT LINE TO LINE OUTPUT Note: DATA and DATA inputs must be complementary waveforms or 50% duty cycle average, with no delays between them, and must be in the same state during off times (both high or low). FIGURE 1 – TRANSMITTER LOGIC WAVEFORMS IDEALIZED * LINE TO LINE INPUT STROBE DATA OUT DATA OUT Note overlap * See Figure 7 for Actual Waveforms FIGURE 2 – RECEIVER LOGIC WAVEFORMS IDEALIZED * SCD4453 Rev F 6/29/15 Aeroflex Plainview 2 ABSOLUTE MAXIMUM RATINGS Operating case temperature -55°C to +125°C Storage case temperature -65°C to +150°C Power supply voltage -0.3VDC to +7.0VDC Logic input voltage -0.3VDC to +5.5VDC ±10 V Receiver differential input ±5V Receiver input voltage (common mode) 650 mA Driver peak output current 2.0 Watts Total package power dissipation over the full operating case temperature range (Note: Normal operation conditions require one transmitter on and the other off at any given time) 10°C Maximum junction to case temperature 5°C/W Thermal resistance – Junction to case Package Weight Plug-in Flat Package 16g (0.564oz) 12.5g (0.441oz) ELECTRICAL CHARACTERISTICS – DRIVER SECTION INPUT CHARACTERISTICS, TX DATA IN OR TX DATA IN (Notes 2 & 3 Apply) Parameter Condition Symbol Min Typ Max Unit "0" Input Current VIN = 0.4V IILD - -0.2 -0.4 mA "1" Input Current VIN = 2.7V IIHD - 1 40 µA "0" Input Voltage VILD - - 0.7 V "1" Input Voltage VIHD 2.0 - - V INHIBIT CHARACTERISTICS "0" Input Current VIN = 0.4V IILI - -0.2 -0.4 mA "1" Input Current VIN = 2.7V IIHI - 1.0 40 µA "0" Input Voltage VILI - - 0.7 V "1" Input Voltage VIHI 2 - - V Delay from TX inhibit, (0?1) to inhibited output tDXOFF - 250 450 nS Delay from TX inhibit, (1?0) to active output tDXON - 150 250 nS Differential Output Noise, inhibit mode VNOI - 2 10 mVp-p Note 1 ZOI 2K - - RL = 70 VO 18 21 25 Vp-p tr 100 200 300 nS VOS - - ±250 mVpeak tDTX - 120 250 nS Differential Output Impedance (inhibited) OUTPUT CHARACTERISTICS Differential output level (Point C-C') Rise and fall times (10% to 90% of p-p output) Output offset at point C-C’ on Figure 5, 2.5 µS after midpoint crossing of the parity bit of the last word of a 660µS message RL = 70 Delay from 50% point of TX DATA or TX DATA input to zero crossing of differential signal SCD4453 Rev F 6/29/15 Aeroflex Plainview 3 ELECTRICAL CHARACTERISTICS – RECEIVER SECTION Parameter Differential Voltage Range (See Figure 5, point P-P’) Condition Symbol Min Typ Max Unit TXFMR 2.12:1 VIDR - 14 20 Vp-p CMRR 45 - - dB Common Mode Rejection Ratio (Note 3) STROBE CHARACTERISTICS (LOGIC "0" INHIBITS OUTPUT) "0" Input Current VS = 0.4V IIL - -0.2 -0.4 mA "1" Input Current VS = 2.7V IIH - 1 +40 µA "0" Input Voltage VIL - - 0.7 V "1" Input Voltage VIH 2.0 - - V Strobe Delay (Turn-on or Turn-off) tSD - 50 100 nS 0.60 0.82 1.10 Vp-p THRESHOLD CHARACTERISTICS (SINEWAVE INPUT ) Internal Threshold Voltage (Referred to the bus) 100KHz-1MHz VTH OUTPUT CHARACTERISTICS, RX DATA AND RX DATA "1" State IOH = -0.4mA VOH 2.5 3.7 - V "0" State IOL = -4mA VOL - 0.35 0.5 V Delay, (average) from differential input zero crossings to RX DATA and RX DATA output 50% points tDRX - 340 500 nS ICC - 18 30 mA 25% Duty Cycle - 135 195 50% Duty Cycle - 250 345 100% Duty Cycle - 475 650 +4.75 +5.00 +5.50 POWER DATA POWER SUPPLY CURRENTS – PER CHANNEL Transmitter Standby Note 4 POWER SUPPLY VOLTAGE VCC Operating Power Supply Voltage Range V NOTES: 1. Power on or off, measured from 75KHz to 1MHz at point A-A' and transformer self impedance of 3Kminimum. 2. VCC = 5 Volts ±0.5 V, bypassed by 220 µF (Tantalum recommended) Capacitor minimum. All measurements & specifications apply over the temperature range of -55°C to +125°C (case temperature) unless otherwise specified. 3. When measured at point A-A’ with ± 10 Volt peak, line to ground, DC to 2MHz. 4. Typical power is measured with Vbus at point A-A’ = 7.0 Vp-p. SCD4453 Rev F 6/29/15 Aeroflex Plainview 4 LAST BIT tf* 90% Magnified View * OUTPUT OFFSET 6V P-P MIN 9V P-P MAX 0 Volts 0 Volts * OUTPUT OFFSET 10% 2.5 µsec tr * *Offset measured at point C-C' in Figure 5 * Rise and fall times measured at point A-A' in Figure 5 FIGURE 3 – TRANSMITTER (TX) OUTPUT WAVEFORM FIGURE 4 – TRANSMITTER (TX) OUTPUT OFFSET 2200 70 70 2000 1800 1600 TX DATA OUT N1:N2 P P' B B' POWER DISSIPATION MILLIWATTS TX DATA OUT 52.5 A C Center N1:N3 for Stub Tap Coupling C' A' 52.5 RX DATA IN RX DATA IN 1400 Maximum 1200 1000 Typical 800 600 400 200 0 0 Transformer turns ratios: N1:N2 = 1:2.2.12 N1:N3 = 1:1.5 Use Technitrol 1553-5 or equivalent 10 20 30 40 50 60 70 80 90 100 DUTY CYCLE – PERCENT Note: Vcc = +5VDC, Transformer ratio 1:2.12, VBUS (Pt A-A') at 7.5VP-P. FIGURE 6 – POWER DISSIPATION VS. DUTY CYCLE (Total, hybrid with one channel transmitting and the other not powered) FIGURE 5 – TYPICAL TRANSFORMER DIRECT CONNECTION SCD4453 Rev F 6/29/15 Aeroflex Plainview 5 S TA RT O F W O R D – 3 3 W O R D T R A N S M I S S I O N TX DATA IN CH 2 BUS OUT Point A–A' See Figure 5 CH 1 RX DATA OUT CH 3 RX DATA OUT CH 4 E N D O F W O R D – 3 3 W O RD T R A N S M I S S I O N TX DATA IN CH 2 BUS OUT Point A–A' See Figure 5 CH 1 RX DATA OUT CH 3 RX DATA OUT CH 4 * Oscilloscope used is a TEK TDS540 with Probe 6139A. FIGURE 7 ACTUAL HYBRID WAVEFORMS * – 25°C TYPICAL SCD4453 Rev F 6/29/15 Aeroflex Plainview 6 PACKAGE OUTLINES Model ACT4453 Dual In Line Model ACT4453-2 Flat Pack 0.78 MAX 1.90 MAX 0.085 19 1.70 .097 18 0.015 ±0.002 19 36 0.78 MAX 0.600 1.90 MAX 18 Pin 1 & ESD Designator 0.24 MIN 0.10 Typ 0.21MAX 36 0.018 DIA. ±0.002 0.097 0.086 R 4 Places Pin 1 & ESD Designator 0.175 MAX 0.010 ±0.002 Notes 1. Dimensions shown are in inches 2. Pins are equally spaced at 0.100±0.002 tolerance, non-cumulative, each row. 0.40 MIN 2 SIDES 0.065 REF PIN NUMBERS & FUNCTIONS Pin # Function Channel Pin # Function Channel 1 TX DATA OUT A 19 NC - 2 TX DATA OUT A 20 RX DATA IN B 3 GROUND 1 A 21 RX DATA IN B 4 NC - 22 GROUND 3 B 5 RX DATA OUT A 23 NC - 6 STROBE A 24 +5V B 7 GROUND 2 A 25 INHIBIT B 8 RX DATA OUT A 26 TX DATA IN B 9 CASE - 27 TX DATA IN B 10 TX DATA OUT B 28 NC - 11 TX DATA OUT B 29 RX DATA IN A 12 GROUND 1 B 30 RX DATA IN A 13 NC - 31 GROUND 3 A 14 RX DATA OUT B 32 NC - 15 STROBE B 33 +5 V A 16 GROUND 2 B 34 INHIBIT A 17 RX DATA OUT B 35 TX DATA IN A 18 NC - 36 TX DATA IN A SCD4453 Rev F 6/29/15 Aeroflex Plainview 7 ORDERING INFORMATION MODEL DLA SMD # ACT 4453-7 - ACT 4453-2-7 - ACT 4453 - ACT 4453-2 - SCREENING PACKAGE Commercial Flow, +25°C testing only Military Temperature, -55°C to +125°C Screened in accordance with MIL-PRF-38534, Class H Dual in Line Flat Package Dual in Line Flat Package ACT-4453-001-4 ACT-4453-001-5 5962-8952211XC 5962-8952211XA In accordance with DLA SMD 5962-89522, Class H Dual in Line ACT-4453-201-4 ACT-4453-201-5 5962-8952211YC 5962-8952211YA In accordance with DLA SMD 5962-89522, Class H Flat Package ACT-4453-001-1 ACT-4453-001-2 5962-8952212XC 5962-8952212XA In accordance with DLA SMD 5962-89522, Class H Dual in Line ACT-4453-201-1 ACT-4453-201-2 5962-8952212YC 5962-8952212YA In accordance with DLA SMD 5962-89522, Class H Flat Package EXPORT CONTROL: This product is controlled for export under the U.S. Department of Commerce (DoC). A license may be required prior to the export of this product from the United States. www.aeroflex.com/HiRel [email protected] Datasheet Definitions: Advanced Preliminary Datasheet Product in Development Shipping Non-Flight Prototypes Shipping QML and Reduced HiRel Aeroflex Plainview, Inc. reserves the right to make changes to any products and services described herein at any time without notice. Consult Aeroflex or an authorized sales representative to verify that the information in this data sheet is current before using this product. Aeroflex does not assume any responsibility or liability arising out of the application or use of any product or service described herein, except as expressly agreed to in writing by Aeroflex; nor does the purchase, lease, or use of a product or service from Aeroflex convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual rights of Aeroflex or of third parties. SCD4453 Rev F 6/29/15 8 Our passion for performance is defined by three attributes. Solution-Minded Performance-Driven Customer-Focused