Standard Products ACT4469D Dual Variable Amplitude Transceiver for H009 Specification www.aeroflex.com/Avionics October 8, 2008 FEATURES ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ World’s smallest and lowest standby power dual variable amplitude H009 transceiver 1.25" x 0.61" maximum ceramic package Dual transceiver with variable output amplitude control meets McDonnell Douglas H009 data bus specifications Lowest standby power Low power dissipation at full output power Operates with ±12V to ±15 and +5V power supplies Monolithic construction using linear ASICs +10V Control line for transmitter amplitude adjustment (See Figure 3) Packaging – Hermetic Ceramic - Non-conductive mounting surface - No package glass beads - Small size & light weight Designed for commercial, industrial and aerospace applications Aeroflex is a Class H & K MIL-PRF-38534 Manufacturer DESCRIPTION The Aeroflex Plainview transceiver model ACT4469D is a new generation monolithic transceiver which provides variable amplitude in compliance with H009 data bus requirements with the lowest standby power consumption available using three DC power supplies operation. The dual channel ACT4469D performs the front-end analog function of inputting and outputting data through a transformer to a H009 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. The active filter design provides the required H009 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. The receiver input threshold is set internally. Variable amplitude is adjusted with factory preset 0 – 10VDC control line at 2mA maximum input current at 10Volts. TRANSMITTER The Transmitter section accepts complementary 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 175 Ohm resistor, the data bus signal produced is 20VP-P nominal at A-A' (See Figure 5). 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 “INHIBIT" input returns the output to a high impedance state. 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 H009 specifications. 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 1.0VP-P and reject signals less than 0.6VP-P when used with a 1:1 turns ratio transformer (See Figure 5 for transformer data and typical connection). A low level at the Strobe input inhibits the DATA and DATA outputs. If unused, a 2K Ohm pull-up to +5VDC is recommended. SCD4469D Rev D VCONT TX DATA IN TX DATA IN TX INHIBIT VL +VCC -VEE GROUND 10 Channel B 24 (18) 23 (17) DRIVER TRANSMIT ACTIVE FILTER VARIABLE AMPLITUDE OUTPUT STAGE 1 (8) REFERENCE COMP. 5 (11) RECEIVE ACTIVE FILTER COMP. 6 (12) 2 (9) TX/RX TX/RX 22 (16) 19 (13) 21 (15) Channel A (B) 20 (14) 3 RX DATA OUT Channel A Channel B INPUT AMP STROBE RX DATA OUT 4 (10) BLOCK DIAGRAM (WITHOUT TRANSFORMER, CHANNEL A SHOWN) CHANNEL A (CHANNEL B) DATA DATA INHIBIT OUTPUT X X H High Z H H L L L L H L L L H L Low Z (No signal) Low Z (Signal) FIGURE 1A – TX OUTPUT TRUTH TABLE SCD4469D Rev D 10/8/08 Aeroflex Plainview 2 Region 1 2 3 4 1 DATA IN DATA IN INHIBIT LINE TO LINE OUTPUT Notes: 1. Data and DATA inputs must be complementary 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, Region 3; Transmitter signal on, low Z (Transmitter mode), Region 4; No Output signal, Low Z state, (Terminate Mode). FIGURE 1A – TRANSMITTER LOGIC WAVEFORMS LINE TO LINE INPUT Rx DATA OUT Note overlap Rx DATA OUT FIGURE 2 – RECEIVER LOGIC WAVEFORMS SCD4469D Rev D 10/8/08 Aeroflex Plainview 3 ABSOLUTE MAXIMUM RATINGS Operating Case Temperature -55°C to +125°C Storage Case Temperature -65°C to +150°C ±18 V Power Supply Voltages +7 V -0.3 V to +5.5 V Logic Input Voltage Receiver Differential Input ±40 V Receiver Input Voltage (Common Mode) ±10V 150 mA Driver Peak Output Current Total Package Power Dissipation over the Full Operating Case Temperature Range 3.6 Watts 18°C Maximum Junction to Case Temperature (100% duty cycle) 5°C/W Junction-Case, Thermal Resistance ELECTRICAL CHARACTERISTICS – DRIVER SECTION 1/ 2/ INPUT CHARACTERISTICS, TX DATA IN OR TX DATA IN 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 "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 - 300 500 nS Delay from TX inhibit, (1➝0) to active output - tDXON - 200 400 nS Differential Output Noise, inhibit mode - VNOI - 2 10 mVp-p Differential Output Impedance (inhibited) 4/ ZOI 10K - - Ω Point A - A' VO 16 20 24 V p-p Rise and Fall Times (10% to 90% of p-p output) - tR & tF 200 260 300 nS Output Offset, Figure4 5/ Point A - A' VOS - - ±260 mV peak Delay from 50% point of TX DATA or TX DATA input to zero crossing of differential signal (Note 1) - tDTX - 280 400 nS Control Line Input Resistance 3/ - RCONT 5 - - ΚΩ INHIBIT CHARACTERISTICS OUTPUT CHARACTERISTICS Differential output level (175Ω) SCD4469D Rev D 10/8/08 Aeroflex Plainview 4 ELECTRICAL CHARACTERISTICS – RECEIVER SECTION 1/ 2/ Parameter Differential Voltage Range 3/ Common Mode Rejection Ratio 3/ Condition Symbol Min Typ Max Unit Point A-A' VIDR - - 20 VPEAK - CMRR 45 - - dB STROBE CHARACTERISTICS (Logic '0' Inhibits Output) (NOTE: If not used, a 1K pullup to 5V is recommended) "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(ON/OFF) - 90 150 nS VTH 1.5 2.0 3.0 VP-P THRESHOLD CHARACTERISTICS (Sinewave Input ) Internal Threshold Voltage, Point A-A' Figure 5 1MHz 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 6/ 50% points tDRX - 300 450 nS POWER SUPPLY CURRENT PER CHANNEL 1/ 2/ VCC = +12V to +15V, VEE = -12V to -15V, VL = +5V Duty Cycle Condition Symbol Typ Max Unit Point A - A' ZO = 175Ω, VO = 21VP-P Figure 5 ICC IEE IL 6 15 22 10 25 30 mA 25% ICC IEE IL 25 36 22 35 45 30 50% ICC IEE IL 34 45 22 45 55 30 100% ICC IEE IL 49 60 22 60 70 30 Transmitter Standby Notes: 1. VCC = +15Volts ±0.75V, VEE = -15Volts ±0.75V, VIL = +5Volts ±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 1MHz at Point A-A' Figure 4. 5. At point A-A' on Figure 4 or 5, 2.5 µS after midpoint crossing of the parity bit of the last word. 6. This test is peformed while the Transceiver is reading its own transmission. This condition is called "Wraparound". Standard TTL loads applied to RX DATA Outputs. SCD4469D Rev D 10/8/08 Aeroflex Plainview 5 VO P-P @ A– A' 21 FS Last Bit OUTPUT AMPLITUDE 16.8 0.8FS Slope = ΔVO ÷ ΔVCONT @175Ω Magnified View 12.6 Output Offset* 0.6FS 0 Volts 8.4 0.4FS 4.2 0.2FS 0 0 Output Offset* 2.5 µsec *Offset measured at point A-A’ in Figure 5 VCONT DC 2 4 6 8 10 FIGURE 4 – TRANSMITTER (TX) OUTPUT OFFSET FIGURE 3 – TYPICAL TRANSMITTER OUTPUT AMPLITUDE (Vo) vs VCONT VOLTAGE 3.6 C B 3.2 A POWER DISSIPATION MILLIWATTS TX/RX DATA OUT 34Ω N1:N2 +* 175Ω TX/RX DATA OUT +* C ACT4469D, CH A B' A' 34Ω Transformer: Turns ratio: N1:N2 = 1:1 Use MIL-PRF-21038/27-1 or Technitrol 1553-1 2.8 2.4 Maximum 2.0 1.6 1.2 Typical .8 .4 0 0 10 20 30 40 50 60 70 80 90 100 DUTY CYCLE – PERCENT * External Coupling Capacitors are required for each output. Recommened 1µF ceramic 25V/50V or can use Tantalum. Note: Vcc = +15VDC, VEE = -15VDC, VBUS (Point A-A') at 21VP-P FIGURE 6 – PACKAGE (PWRIN - PWRLOAD) POWER DISSIPATION vs DUTY CYCLE (Total Hybrid with one channel transmitting and the other in standby) FIGURE 5 – TYPICAL TRANSFORMER CONNECTION SCD4469D Rev D 10/8/08 Aeroflex Plainview 6 PACKAGE DIMENSIONS 24 13 All dimensions in inches Pin# 1 & ESD Designator 12 1.270 MAX .200 MAX .620 MAX .150 MIN .030 .010 .019 .015 .050 TYP .610 .590 .012 .008 PIN vs FUNCTION TABLE Pin # Function Pin # Function 1 TX DATA OUT A / RX DATA IN A 13 +5V B 2 TX DATA OUT A / RX DATA IN A 14 -15V B 3 GROUND 15 +15V B 4 STROBE A 16 INHIBIT B 5 RX DATA OUT A 17 TX DATA IN B 6 RX DATA OUT A 18 TX DATA IN B 7 10V CONTROL IN 19 +5V A 8 TX DATA OUT B / RX DATA IN B 20 -15V A 9 TX DATA OUT B / RX DATA IN B 21 +15V A 10 STROBE B 22 INHIBIT A 11 RX DATA OUT B 23 TX DATA IN A 12 RX DATA OUT B 24 TX DATA IN A SCD4469D Rev D 10/8/08 Aeroflex Plainview 7 CONFIGURATIONS AND ORDERING INFORMATION Model No. ACT4469-D ACT4469-DI ACT 4469-D-7 Screening DSCC SMD Receiver Data level Military Temperature, -55°C to +125°C Screened in accordance with MIL-PRF-38534, Class H Pending Normally Low DIP Normally High NA Commercial flow, +25°C testing only Case Normally Low ACT 4469-DI-7 Normally High 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 SCD4469D Rev D 10/8/08 8