ARX4435N Transceiver for Macair H009 Specification Preliminary Features • ARX4435N 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 • Low power 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 X LE F N O 35 R 4 9 E 4 37 A X 8 R -8 A A S U X P LE F F N O 5 9 R 3 7 E 44 3 A X -88 R A A S U ARX4435NFP / ARX4435N Transceivers CIRCUIT TECHNOLOGY www.aeroflex.com General Description The Aeroflex Laboratories Incorporated model ARX4435N and ARX4435NFP are new generation monolithic transceivers which provides compliance with Macair H009 data bus requirements. The ARX4435N and ARX4435NFP perform 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 ARX4435N 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. Transmitter TX DATA OUT TX DATA IN DRIVER SHAPING TX DATA IN OUTPUT STAGE TX DATA OUT COMP. RX DATA OUT V+ TX INHIBIT +V TH EXT THRESHOLD DATA RX DATA IN + – + DATA ~4K -VTH EXT THRESHOLD DATA +5 V -12V or -15V RX DATA IN ~4K – DATA SET INTERNAL THRESHOLD V- INPUT AMP ACTIVE FILTER COMP. +15V or +12V STROBE Block Diagram (without Transformer) RX DATA OUT 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, eroflex Circuit Technology – Data Bus Modules For The Future © SCD4435N REV A 7/27/00 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 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. 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 H009 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 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 SCD4435N REV A 7/27/00 Plainview NY (516) 694-6700 Absolute Maximum Ratings Operating case temperature -55°C to +125°C Storage case temperature -65°C to +150 °C Power supply Voltages ±15 V P.S. to ±18V MAX Logic input Voltage +5 V P.S. to +7V MAX -0.3 V to +5.5 V Receiver differential input ±40 V Receiver input voltage (common mode) ±10V Driver peak output current 150 mA Total package power dissipation over the full operating case temperature range 3.0 Watts Maximum junction to case temperature rise (100 % duty cycle) 15°C Junction-Case thermal resistance 5°C/W Electrical Characteristics, Transmitter Section Input Characteristics, TX DATA in or TX DATA in Parameter Condition Symbol “0” Input Current VIN = 0.4 V “1” Input Current VIN = 2.7 V Typ Max Unit IILD -0.2 -0.4 mA IIHD 1.0 40 µA 0.7 V “0” Input Voltage VIHD “1” Input Voltage VIHD Min V 2.0 Inhibit Characteristics "0" Input Current VIN=0.4V "1" Input Current VIN=2.7V IILI -0.2 -0.4 IIHI 1.0 40 µA 0.7 V "0" Input Voltage VILI "1" Input Voltage VIHI mA V 2 Delay from TX inhibit(0→1) to inhibited output Note 1 tDXOFF 350 700 nS Delay from TX inhibit, (1→0) to active output Note 1 tDXON 200 500 nS VNOI 0.8 10 mV p-p Differential output noise, inhibit mode Differential output impedance (inhibited) Note 2 ZOI 10K RL=170 Ω VO 17 tr 200 Ω Output Characteristics Differential output level, pt A-A on Fig. 5 Rise and fall times (10% to 90% of p-p output), pt A-A on Fig. 5 Output offset at pt A-A on Fig. 5, 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. (note1) Aeroflex Circuit Technology VOS tDTX 3 21 220 24 V p-p 300 nS ±265 mV peak 350 nS SCD4435N REV A 7/27/00 Plainview NY (516) 694-6700 Electrical Characteristics, Receiver Section Parameter Differential Input Impedance (Note 1) Condition Symbol Min f= 1MHz ZIn 20K Differential Input Voltage Range Input Common Mode Voltage Range Common Mode Rejection Ratio Typ Max Unit Ω VIDR V p-p 40 Note 1 VICR 10 V p-p Point A-A on Figure 5 CMRR 40 dB Strobe Characteristics (Logic “O” inhibits output) "0" Input Current VS=0.4 V IIL -0.2 -0.4 mA "1" Input Current VS=2.7 V IIH 1.0 +40 µA 0.7 V "0" Input Voltage VIL "1" Input Voltage VIH Strobe Delay (turn-on or turn-off) V 2.0 tSD Note 1. 150 nS Threshold Characteristics (Sinewave input) Internal Threshold Voltage (Referred to the bus) Pins 6 and 11 to GND 100KHz-1MHz External Threshold Pins 6 & 11 open, Pin 5 and Pin 12 with a 10K resistor to GND, 1MHZ Sinewave applied to point A-A VTH 0.60 0.80 1.15 V P-P VTH(EXT) 1.9 2.2 2.5 V P-P 2.5 3.6 Output Characteristics, RX DATA and RX DATA "1" State IOH =-0.4 mA VOH "0" State IOL = 4 mA VOL 0.35 0.5 V tDRX 275 450 nS Delay, (average) from differential input zero crossings to RX DATA and RX DATA output 50% points V Power Data Power Supply Currents (Power supplies set at +15V, -15V, +5V) +V -V I CC I EE Duty Cycle 5V IL TYP MAX TYP MAX Transmitter Standby 5mA 10mA 25mA 35mA 25% duty cycle 20mA 30mA 40mA 60mA 50% duty cycle 40mA 60mA 60mA 80mA 100% duty cycle 85mA 120mA 105mA 140mA TYP MAX 25mA 35mA Recommended Power Supply Voltage Range Aeroflex Circuit Technology +V +11.4 Volts to +15.75 Volts -V -11.4 Volts to -15.75 Volts Logic +4.5 Volts to +5.5 Volts 4 SCD4435N REV A 7/27/00 Plainview NY (516) 694-6700 Figure 3 – Transmitter (TX) Output Wave form Figure 4 – Transmitter (TX) Output offset LAST BIT tf* 90% Magnified View 17V P-P MIN 24V P-P MAX OUTPUT OFFSET * OUTPUT OFFSET * 0 volts 0 Volts 10% 2.5 µsec tr* *Offset measured at point A-A’ in Fig 5 * Rise and fall times measured at point A-A’ in Fig 5 Figure 5 – Typical Transformer connection Figure 6 – Power Dissipation vs. Duty Cycle TX DATA OUT POWER DISSIPATION WATTS 4.0 35Ω N1:N2 A 170Ω A’ TX DATA OUT 35Ω RX DATA IN 3.5 3.0 (TYPICAL) 2.5 2.0 1.5 1.0 0.5 RX DATA IN 0 0 Transformer turns ratio: N1:N2 = 1:1 Use Aeroflex 25T1553-1 10 20 30 40 50 60 70 80 90 100 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 SCD4435N REV A 7/27/00 Plainview NY (516) 694-6700 CIRCUIT TECHNOLOGY Package Configurations and Pinouts Pin Connections PLUG-IN PACKAGE 1.27 MAX 1.10 24 13 1.27 MAX 12 Designator Pin 1 & ESD 0.24 MIN 0.018 DIA. ±0.002 FLAT PACKAGE 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) 1.27 MAX 0.017 ±0.002 Designator Pin 1 & ESD 1.27 MAX 0.10 Typ 0.400 MAX 2 sides 0.009 ±0.002 0.167 for Low Profile Flat Pack 0.200 for Std Flat Pack 0.100 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. DESC No. Receiver Data level Case Specs. ARX4435N To Be Assigned Normally High Plug In H009 Macair ARX4435N-FP To Be Assigned Normally High Flat Pack H009 Macair 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: [email protected] 6 SCD4435N REV A 7/27/00 Plainview NY (516) 694-6700