BU-63147 and BU-63149 MIL-STD-1553 DATA BUS +5V TRANSCEIVER FEATURES DESCRIPTION The BU-63147/49 transceiver is a complete dual transmitter and receiver pair conforming fully to MIL-STD-1553A and 1553B. Features include: monolithic design, +5V power supply voltage, Harris or Smiths type decoder interface, completely independent dual redundant operation, and small size (36 pin DIP). The receiver section of the BU-63147/49 series accepts phase-modulated bipolar data from a MIL-STD-1553 Data Bus and produces TTL Signal data at its output. RX DATA OUT and RX DATA OUT These outputs represent positive and negative variations of the input data signals beyond an internally fixed threshold level. An external STROBE input enables or disables the receiver’s outputs. The transmitter section accepts bi-phase TTL signal data at its TX DATA IN and TX DATA IN inputs and produces phase-modulated bipolar data at the TX DATA OUT and TX DATA OUT outputs. The transmitter’s output voltage level is typically about 11Vpp. An external input, INHIBIT, takes priority over the transmitter inputs and disables the transmitter when activated with a logic “1”. • +5V Power Supply • Low Power • Conforms Fully To MIL-STD-1553A AND 1553B • Dual Transceiver • Available with MIL-STD-1760 Compliant Transmitter Voltage The small size, +5V power supply voltage, and compliance with MIL-STD-1553 simplify engineering design, making it an excellent choice for interfacing with any MIL-STD-1553 system. • Available with McAir Compatible Waveform • 36-Pin DIP • HARRIS or SMITHS I/O Compatibility +5 V 1553 DATA BUS PHASE MODULATED BIPOLAR DATA RX DATA IN SHORT OR LONG STUB COUPLING RECEIVER STROBE BI PHASE TTL DATA RECEIVER SECTION COMPARATOR FILTER ISOLATION TRANSFORMER RX DATA OUT RX DATA OUT RX DATA IN DECODER FILTER COMPARATOR TRANSMITTER SECTION TX Data Out SHAPING NETWORK TX Data Out SHAPING NETWORK CASE/GND TX DATA IN ENCODER TX DATA IN TX INHIBIT FIGURE 1. BU-63147/49 BLOCK DIAGRAM (one channel shown) © 2000 Data Device Corporation TABLE 1. BU-63147/49 SPECIFICATIONS PARAMETER MIN TYP MAX POWER DISSIPATION (Note 10) Total Hybrid BU-63147/9XX-XX0 • Idle (Both Channels) 0.55 • 25% Transmitter Duty Cycle 0.78 (One Channel) • 50% Transmitter Duty Cycle 1.00 (One Channel) • 100% Transmitter Duty Cycle 1.44 (One Channel) BU-63147/9X3-XX2 • Idle (Both Channels) 0.55 • 25% Transmitter Duty Cycle 0.84 (One Channel) • 50% Transmitter Duty Cycle 1.13 (One Channel) • 100% Transmitter Duty Cycle 1.70 (One Channel) Hottest Die BU-63147/9XX-XX0 • Idle (Both Channels) 0.28 • 25% Transmitter Duty Cycle 0.51 (One Channel) • 50% Transmitter Duty Cycle 0.75 (One Channel) • 100% Transmitter Duty Cycle 1.22 (One Channel) BU-63147/9X3-XX2 • Idle (Both Channels) 0.28 • 25% Transmitter Duty Cycle 0.58 (One Channel) • 50% Transmitter Duty Cycle 0.88 (One Channel) 1.48 • 100% Transmitter Duty Cycle (One Channel) THERMAL • Thermal Resistance, Junction-to25 Case, Hottest Die (θJC) -55 150 • Operating Junction Temperature -65 150 • Storage Temperature +300 • Lead Temperature (soldering, 10 sec.) TABLE 1. BU-63147/49 SPECIFICATIONS PARAMETER ABSOLUTE MAXIMUM RATING Supply Voltage ! +5 V (Vcc) Receiver ! Input Voltage MIN TYP MAX UNITS -0.3 5.0 7.0 V 20 Vp-p differential Logic ! Voltage Input Range RECEIVER Differential Input Resistance (Notes 1-6) Differential Input Capacitance (Notes 1-6) Threshold Level (Note 7) Common Mode Voltage (Note 8) TRANSMITTER Differential Output Voltage ! Direct Coupled Across 35 Ω, Measured on Bus ! Transformer Coupled Across 70 Ω, Measured on Stub: • BU-63147XX-XX0 • BU-63147X3-XX2 (Note 9) Output Noise, Differential (Direct Coupled) Output Offset Voltage, Transformer Coupled Across 70 ohms Rise/Fall Time • BU-63147X3 • BU-63147X4 LOGIC VIH -0.3 Vcc+10% 2.5 kohm 0.20 6 7 0.860 10 Vp-p Vpeak 9 27 27 10 -250 150 250 100 200 150 250 300 300 2.0 -100 Tx Data In, Tx Inhibit Rx Strobe VOH (Vcc=4.75V,IOH=max) 2.4 20 Vp-p Vp-p mVp-p, diff mVp-p, diff ns ns 0.8 V 100 µA -20 µA V 0.4 3.4 V 5.0 5.5 mA V 100 205 mA mA 310 mA 520 mA 100 216 mA mA 332 mA 565 mA W W W W W W W W W W W W W W W W °C/W °C °C °C PHYSICAL CHARACTERISTICS Size 36-Pin DIP mA -3.4 4.75 Vp-p V IOH POWER SUPPLY REQUIREMENTS Voltages/Tolerances ! +5V Current Drain (Total Hybrid) BU-63147/9XX-XX0 • Idle (Both Channels) • 25% Transmitter Duty Cycle (One Channel) • 50% Transmitter Duty Cycle (One Channel) • 100% Transmitter Duty Cycle (One Channel) BU-63147/9X3-XX2 • Idle (Both Channels) • 25% Transmitter Duty Cycle (One Channel) • 50% Transmitter Duty Cycle (One Channel) • 100% Transmitter Duty Cycle (One Channel) pF 20 22 VIL VOL (Vcc=4.75V, IOL=max) IOL 5 18 20 IIH Tx Data In, Tx Inhibit Rx Strobe IIL V UNITS 1.895 x 0.775 x 0.210 (48.1 x 19.7 x 5.3) in. (mm) 1.905 x 0.785 x 0.165 (48.4 x 19.9 x 4.2) in. (mm) 0.6 (17) oz (g) 36-Lead Flatpack Weight Notes: Notes 1 through 6 are applicable to the Receiver Differential Resistance and Differential Capacitance specifications: (1) Specifications include both transmitter and receiver (assumed tied together externally). (2) Impedance parameters are specified directly between pins TX/RX A(B) and TX/RX A(B) hybrid. (3) It is assumed that all power and ground inputs to the hybrid are connected and that the hybrid case is connected to ground for the impedance measurement. 2 TABLE 2. TRANSMIT OPERATING MODE Notes (continued) (4) The specifications are applicable for both unpowered and powered conditions. (5) The specifications assume a 2 volt rms balanced, differential, sinusoidal input. The applicable frequency range is 75 kHz to 1 MHz. (6) Minimum resistance and maximum capacitance parameters are guaranteed over the operating range, but are not tested. (7) The Threshold Level, as referred to in this specification, is meant to be the TX Data In X TX Data In X TX INHIBUIT H 0 0 X OFF 0 1 L TX DATA OUT ON, TX DATA OUT OFF 1 0 L 1 1 X TX DATA OUT ON, TX DATA OUT OFF OFF maximum peak-to-peak voltage (measured on the data bus) that can be applied to the receiver's input without causing the output to change from the OFF state. DRIVER OUTPUT OFF (NOTE) NOTE: DRIVER OUTPUT terminals are in the high impedance mode during OFF time, independent of INHIBIT status. (8) Assumes a common mode voltage within the frequency range of dc to 2 MHz, applied to pins of the isolation transformer on the stub side (either direct or transformer coupled), and referenced to transceiver ground. Transformer must RECEIVER OPERATING MODE be a DDC recommended transformer or other transformer that provides an equivalent minimum CMRR. The receiver section accepts data from a MIL-STD-1553 Data Bus when coupled to the Data Bus as shown in FIGURE 3. This data is converted to bi-phase TTL and furnished to RX DATA OUT and RX DATA OUT . (9) MIL-STD-1760 requires minimum output voltage of 20 Vp-p on the stub connection. The -XX2 option is not available for the BU-63147X4 version. (10) Power dissipation specifications assume a transformer coupled configuration, with external dissipation (while transmitting) of 0.14 watts for the active isolation transformer, 0.08 watts for the active coupling transformer, 0.45 watts When STROBE is high data passes throught the receiver to RX DATA OUT and RX DATA OUT . Applying a low to STROBE disables the receiver output terminals. for each of the two bus isolation resistors, and 0.15 watts for each of the two bus termination resistors. As illustrated in FIGURE 2, the receiver in the BU-65147 provides compatibility to the Harris decoder, while the BU-63149 provides compatibility to the Smiths decoder. INTRODUCTION The BU-63147/49 is a dual redundant transmitter and receiver packaged in a 36-pin DDIP. It is directly compatible to Harris 15530 encoder/decoder and has internal (factory preset) threshold levels. The dual transceiver only requires +5V power and conforms to MIL-STD-1553A and 1553B. For McAir compatability, versions are available with rise/fall times of 200 to 300 nsec. WAVEFORMS FIGURE 2 illustrates the BU-63147 with Harris type decoder interface and the BU-63149 with Smiths type decoder interface. Note that DATA and DATA inputs must be complementary waveforms with a 50% duty cycle. FIGURE 3 illustrates the connection between a BU-63147/49 transceiver and a MIL-STD-1553 Data Bus. After transformer isolating the transceiver, it can be either direct coupled (short stub) or transformer coupled (long stub) to the Data Bus. ENCODER OUTPUT (NOTE 2) TX Data In XXX X X X TX Data In XXX X X X LINE-TO-LINE OUTPUT TRANSMIT OPERATING MODE LINE-TO-LINE INPUT The transmitter section accepts encoded TTL data and converts it to phase-modulated bipolar form using a waveshaping network and driver circuits. The driver outputs TX DATA OUT and TX DATA OUT are transformer coupled to the Data Bus. RX Data Out BU-63147 RX Data Out The transmitter output terminals can be put into a high impedance state by setting INHIBIT high, or setting TX DATA IN and TX DATA IN to the same logic level. The operating modes are shown in TABLE 2. RX Data Out BU-63149 RX Data Out Notes: (1) TX Data In and RX Data Out are TTL signals. (2) TX Data In inputs must be at opposite logic levels during transmission, and at the same logic level when not transmitting. (3) LINE-TO-LINE output voltage is measured between TX Data Out and TX Data Out. (4) LINE-TO-LINE input voltage is measured on the Data Bus. The transceivers are able to operate in a “wraparound” mode. This allows output data to be monitored by the receiver section and returned to the decoder where it is checked for errors. FIGURE 2. WAVEFORMS FOR HARRIS/SMITHS TYPE ENCODER/DECODERS 3 SHORT STUB (DIRECT COUPLED) (1:2.5) BU-63147/49 TX RX 4 1 2 3 TX 1 FT MAX 55Ω 55Ω 8 11.2 VPP Z0(70 to 85Ω) 28 VPP RX OR LONG STUB (TRANSFORMER COUPLED) (1:1.4) (1:1.79) TX BU-63147/49 TX 1 2 3 5 20 FT MAX 8 1 0.75 Z0 4 3 0.75 Z0 7 RX 20 V PP RX Z0(70 to 85Ω) Notes: One half of dual transceivers shown. FIGURE 3. INTERFACE TO 1553 BUS PULSE TRANSFORMERS formers in a variety of mechanical configurations with the required turns ratios of 1:2.5 direct coupled, or 1:1.79 transformer coupled. Table 3 provides a listing of many of these. For further information, contact BTTC at 631-244-7393 or at www.bttc-beta.com. Interfacing the BU-63147/49 to a MIL-STD-1553 bus requires a pair of pulse transformers. Beta Transformer Technology Corporation (BTTC), a subsidiary of DDC, manufactures transNOTES: 1. For the BU-63147/49X4-XX0 versions, which include McAIR compatible transceivers, only the B-3818 or B-3819 transformers (shown in bold in the table) may be used. 2. For the BU-63147/49X3-XXX versions with 1553B (and possibly 1760) transceivers, any of the other transformers listed may be used. 3. There are no BU-63147/49X4-XX2 versions. 4 TABLE 3. RECOMMENDED BTTC TRANSFORMERS FOR USE WITH BU-63147/49 TRANSCEIVERS TRANSFORMER CONFIGURATION BTTC PART NO. Single epoxy transformer, through-hole, 0.625 X 0.625, 0.250" max height B-3226 Single epoxy transformer, through-hole, 0.625 X 0.625, 0.220" max height. (May be used with BU-63147/49X4-XX0 version.) B-3818 Single epoxy transformer, flat pack, 0.625" X 0.625", 0.275" max height B-3231 Single epoxy transformer, surface mount, 0.625" X 0.625", 0.275" max height B-3227 Single epoxy transformer, surface mount, hi-temp solder, 0.625" X 0.625", 0.220" max height. (May be used with BU-63147/49X4-XX0 version.) B-3819 Single epoxy transformer, flat pack, 0.625" X 0.625", 0.150" max height LPB-5014 Single epoxy transformer, surface mount, 0.625" X 0.625", 0.150" max height LPB-5015 Dual epoxy transformer, twin stacked, 0.625" X 0.625", 0.280" max height TST-9007 Dual epoxy transformer, twin stacked, surface mount, 0.625" X 0.625", 0.280" max height TST-9017 Dual epoxy transformer, twin stacked, flat pack, 0.625" X 0.625", 0.280" max height TST-9027 Dual epoxy transformer, side by side, through-hole, 0.930" X 0.630", 0.155 max height B-3300 Dual epoxy transformer, side by side, flat pack, 0.930" X 0.630", 0.155 max height B-3261 Dual epoxy transformer, side by side, surface mount, 0.930" X 0.630", 0.155 max height B-3310 Single metal transformer, hermetically sealed, flat pack, 0.630" X 0.630", 0.175" max height HLP-6014 Single metal transformer, hermetically sealed, surface mount, 0.630" X 0.630", 0.175" max height HLP-6015 TABLE 4. BU-63147/49 PIN LISTING FUNCTION PIN PIN 1 TX Data Out A 19 NC 2 TX Data Out A 20 RX Data In B 3 GND A 21 RX Data In B 4 NC 22 GND B 5 RX Data Out A 23 6 RX Strobe A 24 +5 VDC B 7 GND A 25 TX Inhibit B 8 RX Data Out A 26 TX Data In B 9 GND (case) 27 TX Data In B 10 TX Data Out B 28 NC 11 TX Data Out B 29 RX Data In A 12 GND B 30 RX Data In A 13 NC 31 GND A 14 RX Data Out B 32 NC 15 RX Strobe B 33 +5 VDC A 16 GND B 34 TX Inhibit A 17 RX Data Out B 35 TX Data In A 18 NC 36 TX Data In A 5 NC FUNCTION DOT IDENTIFIES PIN 1 0.1± 0.01 (2.5±0.3) 0.775± 0.005 (19.7±0.13) 0.09± 0.01 (2.3±0.25) 18 1 BOTTOM VIEW 19 36 0.21 MAX (5.3) 0.015 MAX (0.39) SEATING PLANE 0.25 MIN (6.4) 0.086 TYP (2.2) RADIUS 1.895 ±0.005 (48.13 ±0.13) SIDE VIEW 0.100± 0.002 TOLERANCE NON-CUMULATIVE CENTER TO CENTER AT SEATING PLANE 0.055 TYP (1.4) RADIUS 0.018± 0.002 DIA (0.46±0.06) FIGURE 4. BU-63147D3/D4 and BU-63149D3/D4 MECHANICAL OUTLINE, DIP 0.250 MIN (6.35) 0.785 MAX (20.0) 1 36 1.905 MAX (48.4) TOP VIEW 0.015 TYP (0.381) 0.100 TYP (2.54) 19 18 0.010± 0.002 (0.254±0.051) 0.165 MAX (4.2) 17 EQUAL SPACES @0.100=1.700 TOLERANCE NON-CUMULATIVE (2.54 = 43.18) SIDE VIEW FIGURE 5. BU-63147F3/F4 and BU-63149F3/F4 MECHANICAL OUTLINE, FLATPACK 6 ORDERING INFORMATION BU-63147D3-120X Supplemental Process Requirements: S = Pre-Cap Source Inspection L = Pull Test Q = Pull Text and Pre-Cap Inspection K = One Lot Date Code W = One Lot Date Code and PreCap Date Code Y = One Lot Date Code and 100% Pull Test Z = One Lot Date Code, PreCap Source, and 100% Pull Test Blank = None of the above Test Criteria: 0 = Standard Testing 2 = MIL-STD-1760 Amplitude Compliant (Note: The -XX2 option is not available for the BU-63147/49X4 version.) Process Requirements: 0 = Standard DDC Processing, no Burn-In 1 = MIL-PRF-38534 Compliant 2 = B* 3 = MIL-PRF-38534 Compliant with PIND Testing 4 = MIL-PRF-38534 Compliant with Solder Dip 5 = MIL-PRF-38534 Compliant with PIND Testing and Solder Dip 6 = B* with PIND Testing 7 = B* with Solder Dip 8 = B* with PIND Testing and Solder Dip 9 = Standard DDC Processing with Solder Dip, no Burn-In Temperature Grade/Data Requirements: 1 = -55°C to +125°C 2 = -40°C to +85°C 3 = 0°C to +70°C 4 = -55°C to +125°C with Variables Test Data 5 = -40°C to +85°C with Variables Test Data 6 = Custom Part (Reserved) 7 = Custom Part (Reserved) 8 = 0°C to +70°C with Variables Test Data Rise/Fall Times Option: 3 = Rise/Fall times = 100 to 300 ns 4 = Rise/Fall times = 200 to 300 ns Package Type: D = DIP Package F = Flat Pack Base Product Type: BU-63147 = 5V Dual Transceiver, HARRIS Compatible BU-63149 = 5V Dual Transceiver, SMITHS Compatible *Standard DDC Processing with burn-in and full temperature test, see table below. STANDARD DDC PROCESSING TEST MIL-STD-883 METHOD(S) CONDITION(S) INSPECTION 2009, 2010, 2017, and 2032 — SEAL 1014 A and C TEMPERATURE CYCLE 1010 C CONSTANT ACCELERATION 2001 A BURN-IN 1015, Table 1 — 7 The information in this data sheet is believed to be accurate; however, no responsibility is assumed by Data Device Corporation for its use, and no license or rights are granted by implication or otherwise in connection therewith. Specifications are subject to change without notice. 105 Wilbur Place, Bohemia, New York 11716-2482 For Technical Support - 1-800-DDC-5757 ext. 7382 or 7234 Headquarters - Tel: (631) 567-5600, Fax: (631) 567-7358 West Coast - Tel: (714) 895-9777, Fax: (714) 895-4988 Southeast - Tel: (703) 450-7900, Fax: (703) 450-6610 United Kingdom - Tel: +44-(0)1635-811140, Fax: +44-(0)1635-32264 Ireland - Tel: +353-21-341065, Fax: +353-21-341568 France - Tel: +33-(0)1-41-16-3424, Fax: +33-(0)1-41-16-3425 Germany - Tel: +49-(0)8141-349-087, Fax: +49-(0)8141-349-089 Sweden - Tel: +46-(0)8-54490044, Fax +46-(0)8-7550570 Japan - Tel: +81-(0)3-3814-7688, Fax: +81-(0)3-3814-7689 World Wide Web - http://www.ddc-web.com RM ® I FI REG U ST ERED DATA DEVICE CORPORATION REGISTERED TO ISO 9001 FILE NO. A5976 A 04/00-500 PRINTED IN THE U.S.A. 8