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BU-63152
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MIL-STD-1553 DATA BUS DUAL TRANSCEIVER
FEATURES
• Requires only +5V Power Supply • Small Size - 64 Pin QFP • Low Power • Dual Transceiver • HARRIS I/O Compatibility • Conforms fully to MIL-STD-1553A, -1553B, and -1760
DESCRIPTION
The BU-63152 transceiver is a complete dual transmitter and receiver pair conforming fully to MIL-STD-1553A, 1553B, and 1760. Features include: +5V power supply voltage, Harris interface type, completely independent dual redundant operation, and small size 64pin Quad Flat Package (QFP). The receiver section of the BU-63152 series accepts phase-modulated bipolar data from a MIL-STD-1553 Data Bus and produces TTL level signals at its outputs: 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 bipolar 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. When used with the recommended transformers, the transmitter typically produces 21Vp-p for transformer coupled outputs and 7.2Vp-p at the bus. An external input, INHIBIT, takes priority over the transmitter inputs and disables the transmitter when activated with a logic “1”. The small size, +5V power supply voltage, and compliance with MILSTD-1553A, 1553B, and 1760 simplify engineering design, making it an excellent choice for interfacing with any MIL-STD-1553 system.
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FOR MORE INFORMATION CONTACT:
Data Device Corporation 105 Wilbur Place Bohemia, New York 11716 631-567-5600 Fax: 631-567-7358 www.ddc-web.com
Technical Support: 1-800-DDC-5757 ext. 7234
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2000 Data Device Corporation
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Data Device Corporation www.ddc-web.com
+5 V
RECEIVER STROBE BI PHASE TTL DATA
1553 DATA BUS
PHASE MODULATED BIPOLAR DATA RX Data In SHORT OR LONG STUB COUPLING ISOLATION TRANSFORMER RX Data In
RECEIVER SECTION COMPARATOR
RX Data LIMITER FILTER RX Data DECODER
COMPARATOR
TRANSMITTER SECTION
2
DRIVER TX Data Out SHAPING NETWORK DRIVER TX Data Out SHAPING NETWORK TX Data In TX Data In
ENCODER
TX INHIBIT
BU-63152 D1 web-09/02-0
FIGURE 1. BU-63152 BLOCK DIAGRAM
TABLE 1. BU-63152 SPECIFICATIONS
PARAMETER ABSOLUTE MAXIMUM RATING Supply Voltage • +5 V (Vcc) Receiver • Input Voltage (to transformer) 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 (Note 9) Output Noise, Differential (Direct Coupled) Dynamic Output Offset Voltage, Transformer Coupled Across 70Ω Rise/Fall Time LOGIC VIH VIL IIH(TXIN, TXIN, TXINHIBIT) IIH(STROBE) IIL(TXIN, T.