HI-1569 MIL-STD-1553 / 1760 5V Monolithic Dual Transceiver August 2006 FEATURES DESCRIPTION The HI-1569 is a low power CMOS dual transceiver designed to meet the requirements of MIL-STD-1553 /1760 specifications. The transmitter section of each channel takes complementary CMOS / TTL digital input data and converts it to bi-phase Manchester encoded 1553 signals suitable for driving the bus isolation transformer. Separate transmitter inhibit control signals are provided for each transmitter. The receiver section of each channel converts the 1553 bus bi-phase data to complementary CMOS / TTL data suitable for inputting to a Manchester decoder. Each receiver has a separate enable input which can be used to force the output of the receiver to a logic 0. ! Compliant to MIL-STD-1553A & B, MIL-STD-1760, ARINC 708A ! CMOS technology for low standby power ! Single 5V power supply ! Less than 1.0W maximum power dissipation ! Military processing options ! Industry standard 64-pin PQFP package PIN CONFIGURATION (Top View) HI-1569 48 - RXA 47 - RXENA 46 - RXA 45 - N/C 44 - VDD A 43 - N/C 42 - N/C 41 - N/C 40 - GND A 39 - BUSB OUT 38 - BUSB OUT 37 - VDD B 36 - VDD B 35 - BUSB OUT 34 - BUSB OUT 33 - GND B N/C - 17 GND B - 18 N/C - 19 VDD B - 20 VDD B - 21 N/C - 22 GND B - 23 N/C - 24 BUSB IN - 25 BUSB IN - 26 N/C - 27 VDD B - 28 VDD B - 29 TXINHB - 30 TXB - 31 TXB - 32 GND A - 1 BUSA OUT - 2 BUSA OUT - 3 VDD A - 4 VDD A - 5 BUSA OUT - 6 BUSA OUT - 7 GND B - 8 N/C - 9 N/C - 10 N/C - 11 VDD B - 12 N/C - 13 RXB - 14 RXENB - 15 RXB - 16 64 - TXA 63 - TXA 62 - TXINHA 61 - VDD A 60 - VDD A 59 - N/C 58 - BUSA IN 57 - BUSA IN 56 - N/C 55 - GND A 54 - N/C 53 - VDD A 52 - VDD A 51 - N/C 50 - GND A 49 - N/C The transmitter outputs and receiver inputs for each channel are brought out to separate sets of pins. For typical MIL-STD-1553 applications the transmitter output and receiver input will be tied together at the isolation transformer. 64 - Pin Plastic Quad Flat Pack (PQFP) (DS1569 Rev. C) HOLT INTEGRATED CIRCUITS www.holtic.com 08/06 HI-1569 PIN DESCRIPTIONS PIN SYMBOL FUNCTION 1, 40, 50, 55 GNDA power supply DESCRIPTION Ground for channel A (Connect ALL pins) 2, 3 BUSA OUT analog output MIL-STD-1533 bus driver A, positive signal 4, 5, 44, 52, 53, 60, 61 VDDA power supply +5 volt power for channel A (Connect ALL pins) 6, 7 BUSA OUT analog output MIL-STD-1533 bus driver A, negative signal 8, 18, 23, 33 GNDB power supply Ground for channel B (Connect ALL pins) 12, 20, 21, 28, 29, 36, 37 VDDB power supply +5 volt power for channel B (Connect ALL pins) 14 RXB digital output Receiver B output, non-inverted 15 RXENB digital input 16 RXB digital output 25 BUSB IN analog input MIL-STD-1553 bus receiver B, positive signal 26 BUSB IN analog input MIL-STD-1553 bus receiver B, negative signal 30 TXINHB digital input Transmit inhibit, channel B. If high BUSB OUT, BUSB OUT disabled 31 TXB digital input Transmitter B digital data input, non-inverted Receiver B enable. If low, forces RXB and RXB low Receiver B output, inverted 32 TXB digital input 34, 35 BUSB OUT analog output 38, 39 BUSB OUT analog output MIL-STD-1533 bus driver B, negative signal 46 RXA digital output Receiver A output, non-inverted 47 RXENA digital input 48 RXA digital output Receiver B output, inverted 57 BUSA IN analog input MIL-STD-1553 bus receiver A, positive signal 58 BUSA IN analog input MIL-STD-1553 bus receiver A, negative signal 62 TXINHA digital input Transmit inhibit, channel A. If high BUSA OUT, BUSA OUT disabled 63 TXA digital input Transmitter A digital data input, non-inverted 64 TXA digital input Transmitter A digital data input, inverted N/C - 9 -11, 13, 17,19, 22, 24, 27 41 - 43, 45, 49, 51, 54, 56, 59 Transmitter B digital data input, inverted MIL-STD-1533 bus driver B, positive signal Receiver B enable. If low, forces RXB and RXB low Not connected. May be left open or connected to power or ground FUNCTIONAL DESCRIPTION The HI-1569 data bus transceiver contains differential voltage source drivers and differential receivers. It is intended for applications using a MIL-STD-1553 A/B data bus. The device produces a trapezoidal output waveform during transmission. TRANSMITTER Data input to the device’s transmitter section is from the complementary CMOS /TTL inputs TXA/B and TXA/B. The transmitter accepts Manchester II bi-phase data and converts it to differential voltages on BUSA/B OUT and BUSA/B OUT. The transceiver outputs are either direct or transformer coupled to the MIL-STD-1553 data bus. Both coupling methods produce a nominal voltage on the bus of 7.5 volts peak to peak. The transmitter is automatically inhibited and placed in the high impedance state when both TXA/B and TXA/B are either at a logic “1” or logic “0” simultaneously. A logic “1” applied to the TXINHA/B input will force the transmitter to the high impedance state, regardless of the state of TXA/B and TXA/B. RECEIVER The receiver accepts bi-phase differential data from the MILSTD-1553 bus through a direct or transformer coupled interface. The receiver’s differential input stage drives a filter and threshold comparator that produces CMOS/TTL data at the RXA/B and RXA/B output pins. Each set of receiver outputs can be independently forced to a logic "0" by setting RXENA or RXENB low. MIL-STD-1553 BUS INTERFACE A direct coupled interface (see Figure 2) uses a 1:2.5 ratio isolation transformer and two 55 ohm isolation resistors between the transformer and the bus. In a transformer coupled interface (see Figure 3), the transceiver is connected to a 1:1.79 isolation transformer which in turn is connected to a 1:1.4 coupling transformer. The transformer coupled method also requires two coupling resistors equal to 75% of the bus characteristic impedence (Zo) between the coupling transformer and the bus. HOLT INTEGRATED CIRCUITS 2 HI-1569 Data Bus Each Channel TRANSMITTER Isolation Transformer Coupler Network BUSA/B OUT TXA/B Transmit Logic Direct or Transformer Slope Control TXA/B BUSA/B OUT TXINHA/B RECEIVER BUSA/B IN RXA/B Input Filter Receive Logic RXA/B BUSA/B IN Comparator RXENA/B Figure 1. Block Diagram TRANSMIT WAVEFORM - EXAMPLE PATTERN TXA/B TXA/B BUSA/B OUT BUSA/B OUT RECEIVE WAVEFORMS - EXAMPLE PATTERN Vin (Line to Line) RXA/B RXA/B HOLT INTEGRATED CIRCUITS 3 HI-1569 ABSOLUTE MAXIMUM RATINGS Supply voltage (VDD) RECOMMENDED OPERATING CONDITIONS Supply Voltage -0.3 V to +7 V Logic input voltage range VDD....................................... 5V... ±5% -0.3 V dc to +5.5 V Receiver differential voltage 10 Vp-p Temperature Range Driver peak output current +1.0 A Power dissipation at 25°C 1.0 W Solder Temperature Industrial Screening.........-40°C to +85°C Hi-Temp Screening........-55°C to +125°C Military Screening..........-55°C to +125°C 275°C for 10 sec. Junction Temperature 175°C Storage Temperature -65°C to +150°C NOTE: Stresses above absolute maximum ratings or outside recommended operating conditions may cause permanent damage to the device. These are stress ratings only. Operation at the limits is not recommended. DC ELECTRICAL CHARACTERISTICS VDD = 5.0V, GND = 0V, TA = Operating Temperature Range (unless otherwise specified). PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS 4.75 5 5.25 V Operating Voltage VDD Total Supply Current ICC1 Not Transmitting 14 22 mA ICC2 Transmit one channel @ 50% duty cycle 200 340 mA ICC3 Transmit one channel @ 100% duty cycle 400 550 mA 0.11 W 0.95 W Power Dissipation PD1 Not Transmitting PD2 Transmit one channel @ 100% duty cycle 0.70 Min. Input Voltage (HI) VIH Digital inputs Max. Input Voltage (LO) VIL Digital inputs Min. Input Current (HI) IIH VIH = 4.9V, Digital inputs Max. Input Current (LO) IIL VIL = 0.1V, Digital inputs -20 µA Min. Output Voltage (HI) VOH IOUT = -4mA, Digital outputs 4.0 V (LO) VIH IOUT = 4.0mA, Digital outputs Max. Output Voltage RECEIVER 1.4 1.4 V 0.8 V 20 µA 0.4 V (Measured at Point “AD“ in Figure 2 unless otherwise specified) Input resistance RIN Differential Input capacitance CIN Differential Common mode rejection ratio CMRR Input Level VIN Input common mode voltage Detect VTHD No Detect VTHND Theshold Voltage - Transformer-coupled Detect VTHD No Detect VTHND 20 Kohm 5 40 Differential pF dB 9 Vp-p -5.0 5.0 V-pk 1 Mhz Sine Wave (Measured at Point “AD“ in Figure 2) 1.15 20.0 Vp-p 0.28 Vp-p 1 MHz Sine Wave (Measured at Point “AT“ in Figure 3) 0.86 14.0 Vp-p 0.20 Vp-p VICM Threshold Voltage - Direct-coupled = 2.0 HOLT INTEGRATED CIRCUITS 4 HI-1569 DC ELECTRICAL CHARACTERISTICS (cont.) VDD = 5.0V, GND = 0V, TA = Operating Temperature Range (unless otherwise specified). PARAMETER TRANSMITTER SYMBOL CONDITION MIN TYP MAX UNITS 6.0 9.0 Vp-p 20.0 27.0 Vp-p 10.0 mVp-p -90 90 mV -250 250 mV (Measured at Point “AD” in Figure 2 unless otherwise specified) Output Voltage Direct coupled VOUT Transformer coupled VOUT Output Noise 35 ohm load (Measured at Point “AD“ in Figure 2) 70 ohm load (Measured at Point “AT“ in Figure 3) VON Output Dynamic Offset Voltage Direct coupled VDYN Transformer coupled VDYN Differential, inhibited 35 ohm load (Measured at Point “AD“ in Figure 2) 70 ohm load (Measured at Point “AT“ in Figure 3) Output resistance ROUT Differential, not transmitting Output Capacitance COUT 1 MHz sine wave 10 Kohm 15 pF AC ELECTRICAL CHARACTERISTICS VDD = 5.0V, GND = 0V, TA =Operating Temperature Range (unless otherwise specified). PARAMETER RECEIVER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS 450 ns 40 ns (Measured at Point “AD” in Figure 2) Receiver Delay tDR Receiver Enable Delay From input zero crossing to RXA/B or RXA/B From RXENA/B rising or falling edge to tREN RXA/B or RXA/B TRANSMITTER (Measured at Point “AD” in Figure 2) Driver Delay Rise time Fall Time Inhibit Delay tDT TXA/B, TXA/B to BUSA/B OUT, BUSA/B OUT 150 ns tr 35 ohm load 100 300 ns 100 tf 35 ohm load 300 ns tDI-H Inhibited output 100 ns tDI-L Active output 150 ns TRANSMITTER 1:2.5 55 W BUSA/B OUT TXA/B 35 W TXA/B BUSA/B OUT TXINHA/B 55 W Isolation Transformer Point “AD“ 55 W RECEIVER 2.5:1 RXA/B Point “AD“ 35 W 55 W RXA/B Isolation Transformer RXENA/B Figure 2. Direct Coupled Test Circuits HOLT INTEGRATED CIRCUITS 5 HI-1569 TRANSMITTER Point “AT” 1:1.79 1:1.4 BUSA/B OUT TXA/B 52.5 W (.75 Zo) 35 W (.5 Zo) TXA/B BUSA/B OUT TXINHA/B 52.5 W (.75 Zo) Isolation Transformer Coupling Transformer Point “AT” 1.79:1 1.4:1 52.5 W (.75 Zo) RECEIVER RXA/B 35 W (.5 Zo) RXA/B 52.5 W (.75 Zo) Coupling Transformer Isolation Transformer RXENA/B Figure 3. Transformer Coupled Test Circuits ORDERING INFORMATION HI - 1569PQ x x (Plastic) PART NUMBER Blank F LEAD FINISH Tin / Lead (Sn / Pb) Solder 100% Matte Tin (Pb-free, RoHS compliant) PART NUMBER TEMPERATURE RANGE FLOW BURN IN I -40°C TO +85°C I NO T -55°C TO +125°C T NO M -55°C TO +125°C M YES PART NUMBER 1567PQ RXENA = 0 RXENB = 0 PACKAGE RXA RXA RXB RXB DESCRIPTION 0 0 0 0 64 PIN PLASTIC PQFP HOLT INTEGRATED CIRCUITS 6 HI-1569 CIRCUIT DESIGN CONSIDERATIONS Holt's Application Note AN-500 contains useful information regarding circuit design and layout when using MIL-STD1553 transceivers. THERMAL CHARACTERISTICS PART NUMBER PACKAGE DESCRIPTION CONDITION ØJA HI-1569PQI HI-1569PQT HI-1569PQM 64 PIN PLASTIC PQFP Socketed 46.3°C/W JUNCTION TEMPERATURE TA=25°C TA=85°C TA=125°C 58°C 118°C 157°C Data taken at VDD=5.0V, continuous transmission at 1Mbit/s, single transmitter enabled. RECOMMENDED TRANSFORMERS The HI-1569 transceiver has been characterized for compliance with the electrical requirements of MIL-STD1553 when used with the following transformers. Holt recommends the Premier Magnetics parts as offering the best combination of electrical performance, low cost and small footprint. MANUFACTURER Technotrol Premier Magnetics Technotrol Premier Magnetics PART NUMBER APPLICATION TURNS RATIO(S) DIMENSIONS TL1553-45 Isolation Dual tapped 1:1.79, 1:2.5 .630 x 630 x .155 inches PM-DB2725EX Isolation Dual tapped 1:1.79, 1:2.5 .500 x .500 x .375 inches TQ1553-2 Stub coupling 1:1.4 .625 x .625 x .250 inches PM-DB2702 Stub coupling 1:1.4 .625 x .500 x .250 inches HOLT INTEGRATED CIRCUITS 7 PACKAGE DIMENSIONS inches (millimeters) 64-PIN PLASTIC QUAD FLAT PACK (PQFP) Package Type: 64PQS .031 BSC (0.8 BSC) .630 ± .010 (16.00 ± .25) SQ. .551 ± .004 SQ. (14.00 ± .10) .014 ± .002 (.35 ± .05) .024 ± .006 (.60 ± .15) .040 ± .006 (1.0 ± .150) Typ. .012 R typ (.300 R typ ) See Detail A .063 Max. (1.60 Max ) .055 ± .002 (1.40 ± .05) .008 R typ (0.2 R typ) HOLT INTEGRATED CIRCUITS 87 0°£ Q £7° DETAIL A