HI-1569

HI-1569 August 2006 MIL-STD-1553 / 1760 5V Monolithic Dual Transceiver 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. 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. ! 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 (Top View) 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 PIN CONFIGURATION 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 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 64 - Pin Plastic Quad Flat Pack (PQFP) (DS1569 Rev. C) HOLT INTEGRATED CIRCUITS www.holtic.com 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 08/06 HI-1569 PIN DESCRIPTIONS PIN 1, 40, 50, 55 2, 3 4, 5, 44, 52, 53, 60, 61 6, 7 8, 18, 23, 33 12, 20, 21, 28, 29, 36, 37 14 15 16 25 26 30 31 32 34, 35 38, 39 46 47 48 57 58 62 63 64 9 -11, 13, 17,19, 22, 24, 27 41 - 43, 45, 49, 51, 54, 56, 59 SYMBOL GNDA BUSA OUT VDDA BUSA OUT GNDB VDDB RXB RXENB RXB BUSB IN BUSB IN TXINHB TXB TXB BUSB OUT BUSB OUT RXA RXENA RXA BUSA IN BUSA IN TXINHA TXA TXA N/C FUNCTION power supply analog output power supply analog output power supply power supply digital output digital input digital output analog input analog input digital input digital input digital input analog output analog output digital output digital input digital output analog input analog input digital input digital input digital input - DESCRIPTION Ground for channel A (Connect ALL pins) MIL-STD-1533 bus driver A, positive signal +5 volt power for channel A (Connect ALL pins) MIL-STD-1533 bus driver A, negative signal Ground for channel B (Connect ALL pins) +5 volt power for channel B (Connect ALL pins) Receiver B output, non-inverted Receiver B enable. If low, forces RXB and RXB low Receiver B output, inverted MIL-STD-1553 bus receiver B, positive signal MIL-STD-1553 bus receiver B, negative signal Transmit inhibit, channel B. If high BUSB OUT, BUSB OUT disabled Transmitter B digital data input, non-inverted Transmitter B digital data input, inverted MIL-STD-1533 bus driver B, positive signal MIL-STD-1533 bus driver B, negative signal Receiver A output, non-inverted Receiver B enable. If low, forces RXB and RXB low Receiver B output, inverted MIL-STD-1553 bus receiver A, positive signal MIL-STD-1553 bus receiver A, negative signal Transmit inhibit, channel A. If high BUSA OUT, BUSA OUT disabled Transmitter A digital data input, non-inverted Transmitter A digital data input, inverted 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 Each Channel TRANSMITTER Data Bus Isolation Transformer Coupler Network Direct or Transformer BUSA/B OUT TXA/B Transmit Logic TXA/B TXINHA/B RECEIVER BUSA/B OUT Slope Control BUSA/B IN RXA/B Receive Logic RXA/B RXENA/B Comparator Input Filter BUSA/B IN 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) Logic input voltage range Receiver differential voltage Driver peak output current Power dissipation at 25°C Solder Temperature Junction Temperature Storage Temperature -0.3 V to +7 V -0.3 V dc to +5.5 V 10 Vp-p Temperature Range +1.0 A 1.0 W 275°C for 10 sec. 175°C -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. Industrial Screening.........-40°C to +85°C Hi-Temp Screening........-55°C to +125°C Military Screening..........-55°C to +125°C RECOMMENDED OPERATING CONDITIONS Supply Voltage VDD....................................... 5V... ±5% DC ELECTRICAL CHARACTERISTICS VDD = 5.0V, GND = 0V, TA = Operating Temperature Range (unless otherwise specified). PARAMETER Operating Voltage Total Supply Current SYMBOL VDD ICC1 ICC2 ICC3 CONDITION Not Transmitting Transmit one channel @ 50% duty cycle Transmit one channel @ 100% duty cycle Not Transmitting Transmit one channel @ 100% duty cycle Digital inputs Digital inputs VIH = 4.9V, Digital inputs VIL = 0.1V, Digital inputs IOUT = -4mA, Digital outputs IOUT = 4.0mA, Digital outputs MIN 4.75 TYP 5 14 200 400 MAX 5.25 22 340 550 0.11 UNITS V mA mA mA W W V Power Dissipation PD1 PD2 0.70 2.0 1.4 1.4 0.95 Min. Input Voltage Max. Input Voltage Min. Input Current Max. Input Current Min. Output Voltage Max. Output Voltage RECEIVER Input resistance Input capacitance (HI) (LO) (HI) (LO) (HI) (LO) VIH VIL IIH IIL VOH VIH 0.8 20 V µA µA V -20 4.0 0.4 V (Measured at Point “AD“ in Figure 2 unless otherwise specified) RIN CIN CMRR VIN VICM Detect No Detect VTHD VTHND VTHD VTHND 1 Mhz Sine Wave (Measured at Point “AD“ in Figure 2) 1 MHz Sine Wave (Measured at Point “AT“ in Figure 3) Differential -5.0 1.15 Differential Differential 40 9 5.0 20.0 0.28 0.86 14.0 0.20 20 5 Kohm pF dB Vp-p V-pk Vp-p Vp-p Vp-p Vp-p Common mode rejection ratio Input Level Input common mode voltage Threshold Voltage - Direct-coupled Theshold Voltage - Transformer-coupled = Detect No Detect HOLT INTEGRATED CIRCUITS 4 HI-1569 DC ELECTRICAL CHARACTERISTICS (cont.) VDD = 5.0V, GND = 0V, TA = Operating Temperature Range (unless otherwise specified). PARAMETER TRANSMITTER Output Voltage SYMBOL CONDITION MIN TYP MAX UNITS (Measured at Point “AD” in Figure 2 unless otherwise specified) Direct coupled Transformer coupled VOUT VOUT VON Direct coupled VDYN VDYN ROUT COUT 35 ohm load (Measured at Point “AD“ in Figure 2) 70 ohm load (Measured at Point “AT“ in Figure 3) Differential, inhibited 35 ohm load (Measured at Point “AD“ in Figure 2) 70 ohm load (Measured at Point “AT“ in Figure 3) Differential, not transmitting 1 MHz sine wave -90 -250 10 15 6.0 20.0 9.0 27.0 10.0 90 250 Vp-p Vp-p mVp-p mV mV Kohm pF Output Noise Output Dynamic Offset Voltage Transformer coupled Output resistance Output Capacitance AC ELECTRICAL CHARACTERISTICS VDD = 5.0V, GND = 0V, TA =Operating Temperature Range (unless otherwise specified). PARAMETER RECEIVER Receiver Delay Receiver Enable Delay TRANSMITTER Driver Delay Rise time Fall Time Inhibit Delay SYMBOL tDR tREN TEST CONDITIONS From input zero crossing to RXA/B or RXA/B From RXENA/B rising or falling edge to RXA/B or RXA/B MIN TYP MAX 450 40 UNITS ns ns (Measured at Point “AD” in Figure 2) (Measured at Point “AD” in Figure 2) tDT tr tf tDI-H tDI-L TXA/B, TXA/B to BUSA/B OUT, BUSA/B OUT 35 ohm load 35 ohm load Inhibited output Active output 100 100 150 300 300 100 150 ns ns ns ns ns TRANSMITTER TXA/B TXA/B TXINHA/B BUSA/B OUT 1:2.5 55 W 35 W Point “AD“ BUSA/B OUT Isolation Transformer 55 W 55 W Point “AD“ 35 W 55 W 2.5:1 RECEIVER RXA/B RXA/B Isolation Transformer RXENA/B Figure 2. Direct Coupled Test Circuits HOLT INTEGRATED CIRCUITS 5 HI-1569 TRANSMITTER TXA/B TXA/B TXINHA/B 52.5 W (.75 Zo) 35 W (.5 Zo) 52.5 W (.75 Zo) BUSA/B OUT 1:1.79 Point “AT” 1:1.4 52.5 W (.75 Zo) 35 W (.5 Zo) BUSA/B OUT Isolation Transformer Point “AT” 1.79:1 Coupling Transformer 52.5 W (.75 Zo) 1.4:1 RECEIVER RXA/B RXA/B Coupling Transformer Isolation Transformer RXENA/B Figure 3. Transformer Coupled Test Circuits ORDERING INFORMATION HI - 1569PQ x x (Plastic) PART NUMBER LEAD FINISH Blank F PART NUMBER Tin / Lead (Sn / Pb) Solder 100% Matte Tin (Pb-free, RoHS compliant) TEMPERATURE RANGE FLOW BURN IN I T M PART NUMBER -40°C TO +85°C -55°C TO +125°C -55°C TO +125°C I T M NO NO YES RXENA = 0 RXENB = 0 PACKAGE RXA RXA RXB RXB DESCRIPTION 1567PQ 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 HI-1569PQI HI-1569PQT HI-1569PQM PACKAGE DESCRIPTION 64 PIN PLASTIC PQFP CONDITION ØJA 46.3°C/W JUNCTION TEMPERATURE TA=25°C TA=85°C TA=125°C 58°C 118°C 157°C Socketed 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 TL1553-45 PM-DB2725EX TQ1553-2 PM-DB2702 APPLICATION Isolation Isolation Stub coupling Stub coupling TURNS RATIO(S) Dual tapped 1:1.79, 1:2.5 Dual tapped 1:1.79, 1:2.5 1:1.4 1:1.4 DIMENSIONS .630 x 630 x .155 inches .500 x .500 x .375 inches .625 x .625 x .250 inches .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. See Detail A .063 Max. (1.60 Max ) .055 ± .002 (1.40 ± .05) .008 R typ (0.2 R typ) .012 R typ (.300 R typ ) 0°£ Q £ 7° DETAIL A HOLT INTEGRATED CIRCUITS 8 7