BUS8553

www.DataSheet4U.com BUS-8553 MIL-STD-1553 TRANSCEIVER DESCRIPTION The BUS-1553 Transceiver is a complete transmitter and receiver which fully conforming to MIL-STD-1553A and 1553B. Features of this high reliability transceiver include: Harris 15530 type Encoder/Decoder direct interface compatibility, ±15 V or +15 and -12 V power supply requirements, and an internal (factory pre-set) threshold level. The block diagram, FIGURE 1, illustrates the BUS-8553 Transceiver. The receiver section accepts phase-modulated bipolar data from a MILSTD-553 Data Bus and produces TTL signal data at outputs: RX Data Out and RX Data Out. These outputs represent positive and negative excursions of the input bus signals beyond a preset threshold level. The receiver can be taken off-line (outputs disabled) by applying a logic “0” to the RECEIVER STROBE input. The transmitter section accepts bipolar TTL signal data at its TX Data and TX Data input lines and produces a 28 V pk-pk differential signal across a 140 Ω load that is coupled through a transformer to the TX Data and TX Data outputs. An external TX INHIBIT, when activated with a logic “1” will take the transmitter off-line and ignore the data inputs FEATURES Meets All MIL-STD-1553A and 1553B Requirements Very Low Power Dissipation Improved Receiver Filtering Enhances System Bit Error Rate HARRIS 15530 Encoder/Decoder Direct Interface Compatibility APPLICATION The BUS-8553s small size, low power dissipation, and direct interface ...