4435

ARX4435 Transceiver for Macair H009 Specification Features • ARX4435 Transceiver meets Macair H009 data bus specifications • Transmitter can be used to drive clock signal line • Operates with ±15 Volts to ±12 Volts power supplies • Direct replacement for CT1641 and CT1816 devices • Voltage source output for higher bus drive power • Plug-in and flat package available • Monolithic construction using linear ASICs • Processed and screened to MIL-STD-883 specs • MIL-PRF-38534 compliant devices available CIRCUIT TECHNOLOGY www.aeroflex.com General Description The Aeroflex Laboratories Incorporated model ARX4435 and ARX4435FP are new generation monolithic transceivers which provides compliance with Macair H009 data bus requirements The model ARX4435 and ARX4435FP perform the front-end analog function of inputting and outputting data through a transformer to a H-009 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 ARX4435 series active filter design has additional high frequency roll-off to provide the required low harmonic distortion waveform without increasing the delay characteristics significantly. Efficient transmitter electrical and thermal design results in low internal power dissipation and temperature rise at high and low duty cycle. X LE F5 O 43 9 R 4 37 E A RX 88 A AS U X LE P F 5F O39 R47 E43 A RX 88 A AS U TX DATA IN TX DATA IN DRIVER S HAPING TX INHIBIT EXT THRESHOLD DATA DATA SET INTERNAL THRESHOLD EXT THRESHOLD DATA +5 V -12V or -15V RX DATA IN RX DATA IN +15V or +12V STROBE INPUT AMP DATA -VTH V+V TH ~4K + – ~4K – ACTIVE FILTER + ARX4435FP/4435 Transceivers TX DATA OUT OUTPUT STAGE V+ TX DATA OUT 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 35 Ohm fault isolation resistors, and loaded by a 170 Ohm termination, the data bus signal produced is 20 volts nominal P-P at A-A’. (See Figure 5.) When both DATA and DATA inputs are held low or high, the transmitter output impedance is low, and signal is “removed” from the line. In addition, COMP. RX DATA OUT COMP. RX DATA OUT Block Diagram (without Transformer) eroflex Circuit Technology – Data Bus Modules For The Future © SCD4435 REV B 2/3/99 an overriding “INHIBIT” input returns the output impedance to a high 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 H 009 Macair specifications. The transmitter may be safely operated for an indefinite period with the output 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 repre- sent 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 Volts P-P and reject signals less than 0.6 volts P-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 pull-up to +5 Volts is recommended Figure 1 - Transmitter Logic Waveforms 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 2 - Receiver Logic Waveforms LINE TO LINE INPUT Rx DATA OUT Note overlap Rx DATA OUT Note: Waveforms shown are for normally low devices. For normally high receiver output level devices, the receiver outputs are swapped as shown by the dashed lines Aeroflex Circuit Technology 2 SCD4435 REV B 2/3/99 Plainview NY (516) 694-6700 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 rise (100 % duty cycle) Junction-Case thermal resistance -55°C to +125°C -65°C to +150 °C ±15 V P.S. to ±18V MAX ±40 V ±10V 300 mA 3.8 Watts 38°C 10°C/W +5 V P.S. to +7V MAX -0.3 V to +5.5 V Electrical Characteristics, Transmitter Section Input Characteristics, TX DATA in or TX DATA in Parameter “0” Input Current “1” Input Current “0” Input Voltage “1” Input Voltage Condition VIN = 0.4 V VIN = 2.7 V Symbol IILD IIHD V IHD VIHD Min Typ -0.2 1.0 Max -0.4 40 0.7 Unit mA µA V V 2.0 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) Note 2 Note 1 Note 1 VIN=0.4V VIN=2.7V IILI IIHI VILI VIHI tDXOFF tDXON V NOI ZOI 10K 2 350 200 0.8 700 500 10 -0.2 1.0 -0.4 40 0.7 mA µA V V nS nS mV p-p Ω Output Characteristics Differential output level Rise and fall times (10% to 90% of p-p output) Output offset at point A-A on Figure 5, 2.5 µS after midpoint crossing of the last bit Delay from 50% point of TX DATA or TX DATA input to zero crossing of differential signal. (note1) Aeroflex Circuit Technology RL=170 Ω VO tr 17 200 21 24 300 V p-p nS RL=170 Ω VOS ±265 mV peak tDTX 220 350 nS 3 SCD4435 REV B 2/3/99 Plainview NY (516) 694-6700 Electrical Characteristics, Receiver Section Parameter Differential Input Impedance (Note 1) Differential Input Voltage Range Input Common Mode Voltage Range Common Mode Rejection Ratio Note 1 Point A-A on Figure 5 Condition f= 1MHz Symbol ZIn VIDR VICR CMRR Min 20K Typ Max Unit Ω V p-p V p-p dB 40 10 40 Strobe Characteristics (Logic “O” inhibits output) "0" Input Current "1" Input Current "0" Input Voltage "1" Input Voltage Strobe Delay (turn-on or turn-off) Note 1. VS=0.4 V VS=2.7 V IIL IIH VIL VIH tSD 2.0 150 -0.2 1.0 -0.4 +40 0.7 mA µA V V nS Threshold Characteristics (Sinewave input) Internal Threshold Voltage (Referred to the bus) Pins 6 and 11 to GND For 4435-701 only – Pins 6 and 11 to GND 100KHz-1MHz VTH VTH(EXT) 0.60 1.2 1.65 0.80 1.6 1.95 1.15 2.3 2.24 V P-P V P-P V P-P External Threshold Pins 6 & 11 open, Pin 5 with a 5.9K resistor to GND, Pin 12 with a 6.65K resistor to GND, 1MHZ Sinewave applied to point A-A Output Characteristics, RX DATA and RX DATA "1" State "0" State Delay, (average) from differential input zero crossings to RX DATA and RX DATA output 50% points IOH =-0.4 mA IOL = 4 mA VOH VOL tDRX 2.5 3.6 0.35 275 0.5 450 V V nS Power Data Power Supply Currents (Power supplies set at +15V, -15V, +5V) +V -V Duty Cycle TYP Transmitter Standby 25% duty cycle 50% duty cycle 100% duty cycle 45mA 60mA 75mA 110mA MAX 60mA 80mA 105mA 140mA TYP 65mA 85mA 100mA 130mA MAX 75mA 95mA 120mA 160mA 28mA 35mA TYP 5V MAX Recommended Power Supply Voltage Range +V -V Logic Aeroflex Circuit Technology +11.4 Volts to +15.75 Volts -11.4 Volts to -15.75 Volts +4.5 Volts to +5.5 Volts 4 SCD4435 REV B 2/3/99 Plainview NY (516) 694-6700 Figure 3 – Transmitter (TX) Output Wave form Figure 4 – Transmitter (TX) Output offset LAST BIT tf* 90% Magnified View OUTPUT OFFSET * 17V P-P MIN 24V P-P MAX 0 Volts 0 volts OUTPUT OFFSET * 10% 2.5 µsec tr* * Rise and fall times measured at point A-A’ in Fig 5 *Offset measured at point A-A’ in Fig 5 Figure 5 – Typical Transformer connection Figure 6 – Power Dissipation vs. Duty Cycle 4.0 POWER DISSIPATION WATTS 35Ω N1:N2 A 170Ω A’ TX DATA OUT RX DATA IN RX DATA IN Transformer turns ratio: N1:N2 = 1:1 Use Aeroflex 25T1553-1 0 0 10 20 30 40 50 60 70 80 90 100 35Ω 3.5 3.0 2.5 2.0 1.5 1.0 0.5 (TYPICAL) TX DATA OUT DUTY CYCLE, PERCENT 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. Aeroflex Circuit Technology 5 SCD4435 REV B 2/3/99 Plainview NY (516) 694-6700 CIRCUIT TECHNOLOGY Package Configurations and Pinouts PLUG-IN PACKAGE 1.27 MAX 1.10 24 1.27 MAX 13 Pin Connections 1. TX DATA OUT 2. TX DATA OUT 3. TX GND (+5V) 4. +15V (TX) 5. EXT. DATA THRES 6. INT. DATA THRES 7. RX DATA OUT 8. STROBE 9. RX GND (+5V) 10. RXDATA OUT 1.10 11. INT DATA THRES 12. EXT DATA THRES 13. +15V (RX) 14. N.C. 15. RX DATA IN 16. RX DATA IN 17. GND 18. CASE GND 0.175 19. -15V (RX) MAX 20. +5V 21. TX INHIBIT 22. TX DATA IN 23. TX DATA IN 24. -15V (TX) 0.100 FLAT PACKAGE 1.27 MAX 0.017 ±0.002 Designator Pin 1 & ESD 1.27 MAX 12 Designator Pin 1 & ESD 0.10 Typ 0.400 MAX 2 sides 0.24 MIN 0.018 DIA. ±0.002 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. Configurations and Ordering Information Model No. ARX4435 ARX4435-FP ARX4435-701 DESC No. To Be Assigned To Be Assigned - Receiver Data level Normally High Normally High Normally High Case Plug In Flat Pack Plug In Specs. H009 Macair H009 Macair H009 Macair Commercial (0°C - 70°C) The information contained in this data sheet is believed to be accurate; however, Aeroflex Laboratories Incorporated assumes no responsibility for its use, and no license or rights are granted by implication or otherise in connection therewith. Specifications subject to change without notice. Aeroflex Circuit Technology 35 South Service Road Plainview New York 11803 www.aeroflex.com Aeroflex Circuit Technology Telephone: (516) 694-6700 FAX: (516) 694-6715 Toll Free Inquiries: (800) 843-1553 E-Mail: sales-act@aeroflex.com 6 SCD4435 REV B 2/3/99 Plainview NY (516) 694-6700