Standard Products ACT4462D Dual Transceiver Variable Amplitude Universal for H009 Specification or MacAir/1553/1760 Bus Operation October 9, 2007 www.aeroflex.com/Avionics FEATURES ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ACT4462D Dual Transceiver meets H009 and MacAir / 1553 / 1760 specifications Variable output amplitude adjustment H009 or MacAir / MIL-STD-1553 / MIL-STD-1760 – Pin selectable H009 transmitter can be used to drive clock signal line Bipolar ±15V to ±12V & Logic +5V Supplies Voltage source output Receiver thresholds adjustable – Using threshold adjustment pins 1.25"L x 0.61"W, 24 lead, ceramic, hermetic package Monolithic construction using linear ASICs Processed and screened to MIL-STD-883 specs Designed for commercial, industrial and aerospace applications Aeroflex is a Class H & K MIL-PRF-38534 manufacturer DESCRIPTION Aeroflex Plainview transceiver model ACT4462D is the first transceiver to combine H009 Bus and MacAir / 1553 / 1760 Bus operation in a Variable Amplitude Dual Channel, pin selectable, hybrid. In addition to pin selectable bus operation the transceiver allows the user to externally set the receiver threshold, for either channel, to optimize system performance. Two pins, per channel, are brought out for external threshold adjustment, and, with the addition of a resistor from each pin to ground the threshold can be tailored for each channel separately. This Dual Channel, Variable Amplitude, Pin Selectable H009 or MacAir/1553/1760 Transceiver allows the user to stock one component when the system has both a H009 Bus as well as a MacAir/1553/1760 Bus. It should also appeal to H009/MacAir/1553/1760 test equipment manufacturers. TRANSMITTER H009 OPERATION When the 1553/H009 select pin is tied to 5VDC, the transmitter is in H009 operation and accepts bi-phase TTL data at the input and when coupled to the data bus with a 1:1 transformer, isolated on the transceiver side with two 34 Ohm bus terminating resistors, with the bus terminated by a 170 Ohm resistor the data bus signal produced is 21Vp-p typical at A-A' (See Figure 9). When both DATA and DATA inputs are held low or high, the transmitter output becomes a low impedance and signal is “removed” from the line. In addition, an overriding “TX INHIBIT" input returns the output to a high impedance state. A logic “1” applied to the “TX 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 specifications. The transmitter may be safely operated for an indefinite period at 100% duty cycle into a data bus short circuit. MacAIR / 1553 / 1760 OPERATION When the 1553/H009 select pin is left open circuit, the transmitter is in the MacAir /1553 /1760 operation and 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 55 Ohm fault isolation resistors, and loaded by two 70 Ohm terminations plus additional receivers, the data bus signal produced is 7.0Vp-p minimum at A-A’ (See Figure 11 and 12). SCD4462D Rev E 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 “TX INHIBIT" input provides for the removal of the transmitter output from the line. A logic “1” applied to the “TX INHIBIT” takes priority over the condition of the data inputs and disables the transmitter (See Transmitter Logic Waveforms - Figure 3). The transmitter utilizes an active filter to suppress harmonics above 1 MHz to meet MacAir specifications A-3818, A-4905, A-5232 and A-5690. The transmitter may be safely operated for an indefinite period at 100% duty cycle into a data bus short circuit. The transmitter output level is controlled by an external DC Voltage of 0VDC to 10VDC for full output, regardless of the bus type selected. External ceramic coupling capacitors, with 10KΩ resistors connected in parallel to the capacitor (low ESR), are needed to connect the transmitter outputs to the primary of the coupling transformer. The main difference between H009 transmitter operation and MacAir/1553/1760 transmitter operation is the Inhibit function (TX INHIBIT A / TX INHIBIT B). In H009 operation, when both the DATA and DATA transmitter inputs are held low or high, the transmitter output impedance is low, and there is no transmitter output signal. This function is used to terminate the bus, for a period of time, in a H009 system. When the TX INHIBIT is pulled up to 5VDC or left open circuited, the transmitter output goes into a high impedance state, effectively removing it from the 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 Waveforms - Figure 2 and 4). Since H009 and MacAir/1553/1760 bus thresholds are usually different, the receiver threshold levels for both channels can be set, for either bus operation, with the Threshold adjust pins. Grounding the DATA and DATA threshold adjust pins, for channel A or B, will set normal 1553 threshold levels of about 0.9Vp-p at 1MHz. By adding a resistor from each threshold pin to ground the receiver threshold level can be increased from normal 1553 levels to normal H009 levels of about 2Vp-p at 1Mhz, or set anywhere in between. CHAN B AMP CONT TX DATA OUT TX DATA IN DRIVER SHAPING TX DATA IN OUTPUT STAGE TX DATA OUT COMP. RX DATA OUT V+ TX INHIBIT EXT. THRESHOLD DATA DATA SET INTERNAL THRESHOLD DATA EXT. THRESHOLD DATA V- +5V -12V or -15V RX DATA IN INPUT AMP RX DATA IN ACTIVE FILTER COMP. RX DATA OUT +15V or +12V STROBE BLOCK DIAGRAM (WITHOUT TRANSFORMER) 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 1 – H009 TRANSMITTER LOGIC WAVEFORMS LINE TO LINE INPUT Rx DATA OUT Note overlap Rx DATA OUT FIGURE 2 – H009 RECEIVER LOGIC WAVEFORMS – ACT4462DI SCD4462D Rev E 10/9/07 Aeroflex Plainview 2 DATA IN DATA IN INHIBIT LINE TO LINE OUTPUT Notes: 1. Line to line waveforms illustrate Macair signals, MIL-STD-1553 signals are trapezoidal. 2. DATA and DATA inputs must be complementary waveforms or 50% duty cycle average, with no delays between them. 3. DATA and DATA must be in the same state during off time (both high or low). FIGURE 3 – MACAIR / 1553 TRANSMITTER LOGIC WAVEFORMS LINE TO LINE INPUT DATA OUT DATA OUT Note overlap FIGURE 4 – MACAIR / 1553 RECEIVER LOGIC WAVEFORMS – ACT4462DI SCD4462D Rev E 10/9/07 Aeroflex Plainview 3 ABSOLUTE MAXIMUM RATINGS Operating Case Temperature -55°C to +125°C Storage Case Temperature -65°C to +150°C ±15 VDC P.S. to ±18 VDC MAX Power Supply Voltages Logic Input Voltage +5 VDC P.S. to +7 VDC -0.3 V to +5.5 V Receiver Differential Input ±40 V Receiver Input Voltage (Common Mode) ±10 V Driver Peak Output Current 150 mA Amplitude Control Voltage -0.5 VDC to +0.5 VDC 1553-3.25 Watt / H009 - 1.72 Watt 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) Maximum Junction to Case Temperature (100% duty cycle) * 1553-16.25°C / H009- 8.6°C Junction-Case, Thermal Resistance 5°C/W * Macair-1553/H009 ELECTRICAL CHARACTERISTICS – DRIVER SECTION INPUT CHARACTERISTICS, TX DATA IN OR TX DATA IN (H009, MACAIR & MIL-STD-1553) 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 (H009, MACAIR & MIL-STD-1553) "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 Note 1 tDXOFF - 200 500 nS Delay from TX inhibit, (1➝0) to active output Note 1 tDXON - 250 700 nS VNOI - 0.8 10 mVp-p Note 2 ZOI 10K - - Ω VCTL = 10V - VICTL ZO 10K 1.0 - - mA Differential Output Noise, inhibit mode Differential Output Impedance (inhibited) Amplitude Control Voltage Input Current Input Resistance SCD4462D Rev E 10/9/07 Ω Aeroflex Plainview 4 ELECTRICAL CHARACTERISTICS – DRIVER SECTION con’t OUTPUT CHARACTERISTICS (H009) PARAMETER CONDITION SYMBOL MIN TYP MAX UNIT RL=170 Ω (Pin 21 set at +10VDC) VO 16 21 24 Vp-p tr 200 - 300 nS VOS - - ±265 mVpeak tDTX - 270 400 nS VO 20 21 24 Vp-p VOS - - ±90 mVpeak Output rise / fall times (10% to 90% of p-p output) tR & tF 200 250 300 nS Delay from 50% point of TX DATA or TX DATA input to zero crossing of differential output (Note 1) tDTX - 270 400 nS Differential output level at point A-A’ on Figure 9 Rise and fall times (10% to 90% of p-p output) Output offset at point A-A’ on Figure 9, 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 (Note 1) OUTPUT CHARACTERISTICS (Macair & MIL-STD-1553/1760) ZO = 70Ω (Pin 21 set at +10VDC) Differential output Level, Figure 11 Point B-B' Output offset at point A-A on Figures 11 or 12, 2.5µS after midpoint crossing of the last bit ELECTRICAL CHARACTERISTICS – RECEIVER SECTION (H009, MACAIR & MIL-STD-1553) PARAMETER Differential Input Impedance (Note 1) CONDITION SYMBOL MIN TYP MAX UNIT f = 1MHz ZIN 20K - - Ω VIDR - - 40 Vp-p Note 1 VICR 10 - - Vp-p Point A-A on Figure 12 CMRR 40 - - dB Differential Input Voltage Range Input Common Mode Voltage Range Common Mode Rejection Ratio 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 tSD(ON) - - 150 nS 1.2 1.8 2.3 Vp-p 0.70 0.90 1.10 Vp-p Strobe Delay (turn-on or turn-off) THRESHOLD CHARACTERISTICS (SINEWAVE INPUT ) Internal Threshold Voltage H009 – Figure 9 R ~ 3.4KΩ MacAir/1553 – Figure 11 or 12, Point A - A' 100K - 1MHz VTH OUTPUT CHARACTERISTICS, RX DATA AND RX DATA "1" State IOH = -0.4mA VOH 2.5 3.6 - 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 - 275 450 nS SCD4462D Rev E 10/9/07 Aeroflex Plainview 5 POWER SUPPLY CURRENT (Macair & MIL-STD-1553/1760) 1/ 2/ DUTY CYCLE CONDITION SYMBOL TYP MAX ICC IEE IL 5 25 18 10 35 30 Point B-B', ZO = 70 Ω, VO = 29 VP-P Bit Pattern = FFFFHEX Figure 12 ICC IEE IL 20 40 18 30 60 30 (Pin 21 set at +10VDC) 50% ICC IEE IL 40 60 18 60 80 30 100% ICC IEE IL 85 105 18 120 140 30 SYMBOL TYP MAX ICC IEE IL 5 15 18 10 35 30 ICC IEE IL 17 27 18 23 33 30 ICC IEE IL 27 37 18 35 45 30 ICC IEE IL 42 56 18 60 70 30 Transmitter Standby 25% UNIT mA POWER SUPPLY CURRENT (H009) DUTY CYCLE CONDITION Transmitter Standby 25% 50% Point A-A', ZO = 170Ω, VO = 21 VP-P Bit Pattern = FFFFHEX Figure 9 (Pin 21 set at +10VDC) 100% UNIT mA 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. 5. Amplitude control set at +10V for electrical characteristics tables. 6. Normal operating supplies: ±15VDC to ±12VDC and +5VDC. SCD4462D Rev E 10/9/07 Aeroflex Plainview 6 LAST BIT tf* 90% Magnified View OUTPUT OFFSET* 16V P-P MIN 24V P-P MAX 0 Volts 0 Volts OUTPUT OFFSET* 10% 2.5 µsec tr* *Offset measured at point A-A' in Fig 9 & 12 * Rise and fall times measured at point A-A' in Fig 9 & 12 FIGURE 5 – TRANSMITTER (TX) OUTPUT WAVEFORM FIGURE 6 – TRANSMITTER (TX) OUTPUT OFFSET 5.0 2.25 4.5 2.00 4.0 POWER DISSIPATION WATTS POWER DISSIPATION WATTS 2.50 1.75 MAXIMUM 1.50 1.25 1.00 0.75 TYPICAL 0.50 0.25 3.5 3.0 MAXIMUM 2.5 2.0 1.5 TYPICAL 1.0 0.5 0 0 10 20 30 40 50 60 70 80 DUTY CYCLE, PERCENT 0 0 90 100 FIGURE 7 – H009 POWER DISSIPATION vs DUTY CYCLE (Total hybrid with one channel transmitting and the other in standby) 10 20 30 40 50 60 70 80 DUTY CYCLE, PERCENT 90 100 FIGURE 8 – MACAIR/1553 POWER DISSIPATION vs DUTY CYCLE (Total hybrid with one channel transmitting and the other in standby) Terminal TRANSCEIVER UNDER TEST C* 27 34Ω N1:N2 RX DATA IN A RX DATA OUT 10KΩ RX DATA OUT C* TX DATA OUT RX DATA IN R 170Ω A' 34Ω 10KΩ OUTPUT AMPLITUDE AMP CTL TX DATA OUT VP-P @ B - B' 30 24 21 15 12 9 THRESHOLD A / B 6 THRESHOLD A / B 3 R 0 0 * Cap is 0.5 - 1µF ceramic BX/X7R R is determined at system level Transformer turns ratio: N1:N2 = 1:1 Recommend Technitrol 1553-1 Typical 18 Slope = 3VP-P/Vdc 1 2 3 4 5 6 7 8 9 10 Vdc CONTROL VOLTAGE FIGURE 10 – TRANSMITTER (TX) OUTPUT AMPLITUDE vs CONTROL VOLTAGE (See Figure 12 herein) FIGURE 9 – H009 TYPICAL TRANSFORMER CONNECTION SCD4462D Rev E 10/9/07 Aeroflex Plainview 7 Terminal TRANSCEIVER UNDER TEST AMP CTL TX DATA OUT Zo C* RX DATA IN Isolation Transformer Coupling Transformer 1:N 1 : 1.414 R B RX DATA OUT RX DATA OUT A Data Bus Wire Pair Isolation Resistors R = 0.75 ZO 10KΩ C* R B' A' TX DATA OUT RX DATA IN 10KΩ THRESHOLD A / B Zo THRESHOLD A / B Terminal Input Impedance B – B' MIL-STD-1553B para 4.5.2.1.2.3 1KΩ minimum. 75KHz – 1MHz. * Cap is 0.5 - 1µF ceramic BX/X7R Transformer turns ratio: N = 0.707 Recommend Technitrol 1553-1 FIGURE 11 – MACAIR/1553 DATABUS INTERFACE USING TRANSFORMER COUPLING (FIGURE 9 OF MIL-STD-1553B) Terminal TRANSCEIVER UNDER TEST AMP CTL TX DATA OUT Zo C* RX DATA IN Isolation Transformer 55Ω 1:N B RX DATA OUT RX DATA OUT A Data Bus Wire Pair 10KΩ C* 55Ω B' A' TX DATA OUT RX DATA IN 10KΩ Zo THRESHOLD A / B THRESHOLD A / B * Cap is 0.5 - 1µF ceramic BX/X7R Transformer turns ratio: N=1 Recommend Technitrol 1553-1 Terminal Input Impedance B – B' MIL-STD-1553B para 4.5.2.2.2.3 2KΩ minimum. 75KHz – 1MHz. FIGURE 12 – MACAIR/1553 DATABUS INTERFACE USING DIRECT COUPLING (FIGURE 10 OF MIL-STD-1553B) SCD4462D Rev E 10/9/07 Aeroflex Plainview 8 PACKAGE CONFIGURATION OUTLINE 24 13 12 Pin# 1 & ESD Designator 1.270 MAX .200 MAX .620 MAX .150 MIN .030 .010 .050 TYP .019 .015 All dimensions in inches .610 .590 .012 .008 PIN # vs FUNCTION TABLE PIN # FUNCTION PIN # FUNCTION 1 TX DATA IN A 13 THRESHOLD B 2 TX DATA IN A 14 THRESHOLD B 3 TX DATA OUT A / RX DATA IN A 15 TX INHIBIT B 4 TX DATA OUT A / RX DATA IN A 16 1553 / H009 SELECT 5 RX DATA OUT A 17 6 RX DATA OUT A 18 GROUND 7 TX DATA IN B 19 VEE (-15V) 8 TX DATA IN B 20 VCC (+15V) 9 TX DATA OUT B / RX DATA IN B 21 AMPL CONTROL 10 TX DATA OUT B / RX DATA IN B 22 THRESHOLD A 11 RX DATA OUT B 23 THRESHOLD A 12 RX DATA OUT B 24 TX INHIBIT A SCD4462D Rev E 10/9/07 +VL (+5V) Aeroflex Plainview 9 CONFIGURATIONS AND ORDERING INFORMATION MODEL NO. RECEIVER DATA LEVEL CASE SPECS. ACT 4462D Normally Low Plug In ACT 4462DI Normally High MIL-PRF-38534 Class H Processing ACT 4462D-7 Normally Low H009 & MacAir/1553/1760 ACT 4462DI-7 Normally High H009 (-55°C to +125°C) MacAir/1553/1760 (-55°C to +125°C) Commercial flow, +25°C testing only Note: 1. Reference Aeroflex ACT4444 for new 1553/McAir designs requiring a minature chip scale surface mount component implementation. PLAINVIEW, NEW YORK Toll Free: 800-THE-1553 Fax: 516-694-6715 INTERNATIONAL Tel: 805-778-9229 Fax: 805-778-1980 NORTHEAST Tel: 603-888-3975 Fax: 603-888-4585 SE AND MID-ATLANTIC Tel: 321-951-4164 Fax: 321-951-4254 WEST COAST Tel: 949-362-2260 Fax: 949-362-2266 CENTRAL Tel: 719-594-8017 Fax: 719-594-8468 www.aeroflex.com [email protected] Aeroflex Microelectronic Solutions reserves the right to change at any time without notice the specifications, design, function, or form of its products described herein. All parameters must be validated for each customer's application by engineering. No liability is assumed as a result of use of this product. No patent licenses are implied. Our passion for performance is defined by three attributes represented by these three icons: solution-minded, performance-driven and customer-focused SCD4462D Rev E 10/9/07 10