ACT4404N_07

Standard Products ACT4404N Single Transceiver Series www.aeroflex.com/Avionics December 18, 2007 for MACAIR (A3818, A4905, A5232, A5690), MIL-STD-1553 & SAE-AS15531 FEATURES ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ACT4404N & ACT4440N transceivers meets MIL-STD-1553A & B, Macair A3818, A4905, A5232 and A5690 specs ACT4407N & ACT4467N transceivers meets MIL-STD-1553A & B specs only Bipolar supply ±15V to ±12V, logic supply +5V Monolithic construction ACT4404N is a direct replacement for the CT3232M and the ACT4407N is direct replacement for the CT3231 Voltage source output for higher bus drive power Variable receiver threshold capability Designed for commercial, industrial and aerospace applications MIL-PRF-38534 compliant devices available Aeroflex-Plainview is a Class H & K MIL-PRF-38534 manufacturer GENERAL DESCRIPTION The Aeroflex-Plainview ACT4404N series are a new generation monolithic transceiver which provide full compliance with Macair and MIL-STD-1553 data bus requirements. The model ACT4404N series performs the front-end analog function of inputting and outputting data through a transformer to a MIL-STD-1553 or Macair data bus. The ACT4404N and ACT4440N can be considered a "Universal" Transceiver in that it is compatible with MIL-STD-1553A/B, Macair (A-3818, A-4905, A-5232 and A-5690). 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. The ACT4404N and ACT4440N active filter design has additional high frequency roll-off to provide the required Macair low harmonic distortion waveform without increasing the pulse delay characteristics significantly. Efficient transmitter electrical and thermal design provides low internal power dissipation and heat rise at high and well as low duty cycles. An optional receiver input threshold adjustment can be accomplished by the use of the ''External Threshold" terminals. TRANSMITTER The Transmitter section accepts bi-phase TTL data at the input and when coupled to the data bus with a 1:1 transformer the data bus signal produced is 7.0 Volts typical P-P at point A-A’ (See Figure 3 or 4). 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 Waveforms - Figure 1). 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. 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). The internal threshold is nominally set to detect data bus signals exceeding 1.05 Vp-p and reject signals less than 0.6 Vp-p when used with a 1:1 turns ratio transformer (See Figure 3 or 4 for transformer data and typical connection). This threshold setting can be held by grounding the appropriate pins or modified with the use of external resistors. A low level at the ''STROBE'' input inhibits the DATA and DATA outputs. SCD4404N Rev D TX DATA IN TX DATA IN TX INHIBIT GND CASE GND EXT. THRESHOLD DATA DATA SET INTERNAL THRESHOLD DATA EXT. THRESHOLD DATA +5 V -12V or -15V RX DATA IN RX DATA IN +15V or +12V STROBE DRIVER TRANSMIT ACTIVE FILTER V+ TX DATA OUT OUTPUT STAGE TX DATA OUT COMP. RX DATA OUT VRECEIVE ACTIVE FILTER INPUT AMP COMP. RX DATA OUT BLOCK DIAGRAM (WITHOUT TRANSFORMER 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 1 – TRANSMITTER LOGIC WAVEFORMS IDEALIZED LINE TO LINE INPUT DATA OUT DATA OUT Note overlap Notes: 1. Normally high output in standby. FIGURE 2 – RECEIVER LOGIC WAVEFORMS IDEALIZED (Shown for normally high only) 2 SCD4404N Rev D 12/19/07 Aeroflex Plainview ABSOLUTE MAXIMUM RATINGS Operating Case Temperature Storage Case Temperature Power Supply Voltages Logic Input Voltage Receiver Differential Input Receiver Input Voltage (Common Mode) Driver Peak Output Current Total Package Power Dissipation over the Full Operating Case Temperature Range * Maximum Junction to Case Temperature (100% duty cycle) Junction-Case, Thermal Resistance * See Aeroflex Application Note # 112 for reference. -55°C to +125°C -65°C to +150°C ±12VDC to ±18VDC -0.3 V to +5.5 V ±40 V ±10V 150 mA 3.25 Watts 16.25°C 5°C/W +5VDC to +7VDC ELECTRICAL CHARACTERISTICS – DRIVER SECTION 1/ 2/ INPUT CHARACTERISTICS, TX DATA IN OR TX DATA IN Parameter "0" Input Current "1" Input Current "0" Input Voltage "1" Input Voltage Condition VIN = 0.4V VIN = 2.7V Symbol IILD IIHD VILD VIHD Min 2.0 Typ -0.2 1 Max -0.4 40 0.7 Unit mA µA V V INHIBIT CHARACTERISTICS "0" Input Current "1" Input Current "0" Input Voltage "1" Input Voltage Delay from TX inhibit, (0➝1) to inhibited output Delay from TX inhibit, (1➝0) to active output Differential Output Noise, inhibit mode Differential Output Impedance (inhibited) * * See Aeroflex Application Note # 113 for reference. VIN = 0.4V VIN = 2.7V Note 1 Note 1 Note 2 IILI IIHI VILI VIHI tDXOFF tDXON VNOI ZOI 2 10K -0.1 1.0 350 300 0.8 -0.2 40 0.7 700 500 10 mA µA V V nS nS mVp-p Ω OUTPUT CHARACTERISTICS Differential output Level, Figure 3 Point B-B' Output offset at point A-A on Figures 3 or 4, 2.5µS after midpoint crossing of the last bit Output rise / fall times (10% to 90% of p-p output) Delay from 50% point of TX DATA or TX DATA input to zero crossing of differential output (Note 1) SCD4404N Rev D 12/19/07 Z O = 70 Ω VO VOS tR & t F tDTX 18 200 - 21 250 220 24 ±90 300 350 Vp-p mVpeak nS nS Aeroflex Plainview 3 ELECTRICAL CHARACTERISTICS – RECEIVER SECTION 1/ 2/ Parameter Differential Input Impedance Differential Input Voltage Range Input Common Mode Voltage Range Common Mode Rejection Ratio Condition f = 1MHz Symbol ZIN VIDR VICR CMRR Min 10K 10 40 Typ Max 40 Unit Ω Vp-p Vp-p dB STROBE CHARACTERISTICS (LOGIC "0" INHIBITS OUTPUT) "0" Input Current "1" Input Current "0" Input Voltage "1" Input Voltage Strobe Delay (Turn-on or Turn-off) VS = 0.4V VS = 2.7V IIL IIH VIL VIH 2.0 -0.2 1 40 -0.4 +40 0.7 150 mA µA V V nS tSD THRESHOLD CHARACTERISTICS (SINEWAVE INPUT) Internal Threshold Voltage Figure 3 Point B - B' 1MHz VTH 0.60 0.80 1.10 Vp-p OUTPUT CHARACTERISTICS, RX DATA AND RX DATA "1" State "0" State Receiver Output Skew Delay (average), from differential input zero crossings to RX DATA and RX DATA output 50% points IOH = -0.4 mA IOL = 4 mA Note 6 Note 7 VOH VOL tRXSK tDRX 2.5 3.6 0.35 300 0.5 10 450 V V nS nS POWER SUPPLY CURRENT 1/ 2/ Duty Cycle Transmitter Standby Condition Point B-B', ZO = 70 Ω, VO = 29 VP-P Bit Pattern = FFFFHEX Figure 4 Symbol ICC IEE IL ICC IEE IL ICC IEE IL ICC IEE IL 4 Typ 5 25 18 20 40 18 40 60 18 85 105 18 Max 10 35 30 30 60 30 60 80 30 120 140 30 Unit mA 25% 50% 100% SCD4404N Rev D 12/19/07 Aeroflex Plainview TYPICAL HYBRID POWER DISSIPATION * Power Supply Conditions PSC1 VCC = +15V VEE = -15V VL = +5V PSC2 VCC = +15V VEE = -12V VL = +5V PSC3 VCC = +12V VEE = -12V VL = +5V Condition Point B-B', ZO = 70 Ω, VO = 29 VP-P Bit Pattern = FFFFHEX Figure 4 Standby 100% Duty Cycle Unit Watts 0.540 2.167 0.465 1.852 0.450 1.600 * See Aeroflex Application note# 112 for reference. Recommended Power Supply Voltage Range +V -V Logic +11.4 Volts to +15.75 Volts -11.4 Volts to -15.75 Volts +4.5 Volts to +5.5 Volts Notes: 1. VCC = +15VDC ±0.75V, VEE = -15VDC ±0.75V, VIL = +5VDC ±0.5V, TC = -55°C to +125°C, unless otherwise specified. 2. All typical values are measured at +25°C. 3. Characteristics guaranteed by design, not production tested. 4. Power ON/OFF, measured from 75KHz to 1MHz at Point A-A' Figure 4, in accordance with MIL-STD-1553B paragraph 4.5.2.2.2.3. 5. At point A-A' on Figure 3 or 4, 2.5µS after midpoint crossing of the parity bit of the last word of a 660 µS message. 6. Receiver skew is defined as the time from the rising edge of RX DATA OUT to the rising edge of RX DATA OUT minus 500 nS, with a sine wave input of 3 VP-P at 1MHz driven into Point B-B' of Figure 4 or 2.1 VP-P at 1MHz driven into Point B-B' of Figure 3. The specification maximum is guaranteed for TA = 25°C only. Standard TTL loads applied to RX DATA Outputs. 7. This test is performed while the Transceiver is reading its own transmission. This condition is called "Wraparound". Standard TTL loads applied to RX DATA Outputs. SCD4404N Rev D 12/19/07 Aeroflex Plainview 5 Terminal TRANSCEIVER UNDER TEST TX DATA OUT RX DATA IN RX DATA OUT RX DATA OUT Isolation Transformer 1:N Coupling Transformer 1 : 1.414 R Zo B Isolation Resistors R = 0.75 ZO A B' TX DATA OUT RX DATA IN R Data Bus Wire Pair A' Zo INT INT RX RX EXT EXT RX RX NC NC Transformer turns ratio: N = 0.707 Recommend Technitrol 1553-1 NOTE: Internal RX Threshold Wiring Shown Terminal Input Impedance B – B' MIL-STD-1553B para 4.5.2.1.2.3 1KΩ minimum. 75KHz – 1MHz FIGURE 3 – DATABUS INTERFACE USING TRANSFORMER COUPLING (FIGURE 9, MIL-STD-1553B) Terminal TRANSCEIVER UNDER TEST TX DATA OUT RX DATA IN RX DATA OUT RX DATA OUT Isolation Transformer 1:N Zo 55Ω B A B' TX DATA OUT RX DATA IN 55Ω Data Bus Wire Pair A' Zo INT RX NC INT RX NC EXT EXT RX RX R R NOTE: External RX Threshold Wiring Shown – R < 10K Ohms. 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 4 – DATABUS INTERFACE USING DIRECT COUPLING (FIGURE 10, MIL-STD-1553B) SCD4404N Rev D 12/19/07 Aeroflex Plainview 6 tf * 90% LAST BIT Magnified View OUTPUT OFFSET* 6.0VP-P MIN 8.5VP-P MAX 0 Volts 0 volts OUTPUT OFFSET* 10% 2.5 µsec tr* * Rise and fall times measured at point A-A’ in Figure 3 * Offset measured at point A-A’ in Figure 3 FIGURE 5 – TRANSMITTER (TX) OUTPUT WAVEFORM FIGURE 6 – TRANSMITTER (TX) OUTPUT OFFSET 4.0 3.6 3.2 POWER DISSIPATION WATTS 2.8 2.4 2.0 1.6 1.2 0.8 0.4 0 0 10 20 30 40 50 60 70 80 90 100 PSC 3 PSC 1 PSC 2 DUTY CYCLE, PERCENT FIGURE 7 – TYPICAL POWER DISSIPATION vs. DUTY CYCLE SCD4404N Rev D 12/19/07 Aeroflex Plainview 7 PLUG-IN PACKAGE 1.27 MAX 1.10 24 1.27 MAX 13 Pin Function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 TX DATA OUT TX DATA OUT TX GND (+5) +15V (TX) EXT. DATA THRES INT. DATA THRES RX DATA OUT STROBE RX GND (+5V) RXDATA OUT INT. DATA THRES EXT. DATA THRES +15V (RX) NC RX DATA IN RX DATA IN GND CASE GND -15V (RX) +5V TX INHIBIT TX DATA IN TX DATA IN -15V(TX) FLAT PACKAGE 1.27 MAX 0.017 ±0.002 Pin 1 & ESD Designator 1.27 MAX 0.10 Typ 0.400 MIN 1.10 1 12 2 sides 0.175 0.24 MIN 0.018 DIA. ±0.002 MAX 0.100 0.009 ±0.002 0.167 for Low Profile Flat Pack 0.200 for Std Flat Pack 0.080 ±0.015 Notes 1. Dimensions shown are in inches. 2. Pins are equally spaced at 0.100±0.002 tolerance, non-cumulative, each row. PACKAGE CONFIGURATION OUTLINE SCD4404N Rev D 12/19/07 Aeroflex Plainview 8 CONFIGURATIONS AND ORDERING INFORMATION Model No. ACT4404N ACT4404N-2 ACT4440N ACT4440N-2 ACT4407N ACT4407N-2 ACT4467N ACT4467N-2 Normally Low 1553 Only Normally High Normally Low Data Bus McAir/1553 Receiver Data level Normally High Configuration Plug In Flat Pack Plug In Flat Pack Plug In Flat Pack Plug In Flat Pack PLAINVIEW, NEW YORK Toll Free: 800-THE-1553 Fax: 516-694-6715 SE AND MID-ATLANTIC Tel: 321-951-4164 Fax: 321-951-4254 INTERNATIONAL Tel: 805-778-9229 Fax: 805-778-1980 WEST COAST Tel: 949-362-2260 Fax: 949-362-2266 NORTHEAST Tel: 603-888-3975 Fax: 603-888-4585 CENTRAL Tel: 719-594-8017 Fax: 719-594-8468 www.aeroflex.com info-ams@aeroflex.com 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. SCD4404N Rev D 12/19/07 Our passion for performance is defined by three attributes represented by these three icons: solution-minded, performance-driven and customer-focused 9