BUS8553 Datasheet | DDC

DESCRIPTION The BUS-1553 Transceiver is a plete 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 patibility, ±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 patibility APPLICATION The BUS-8553s small size, low power dissipation, and direct interface patibility with Harris 15530 type Encoder/Decoder makes it an excellent choice for any MIL-STD1553A or 1553B transceiver application. The BUS-8553 es in a hermetic 24-pin DDIP package that measures 1.4 x 0.8 x 0.2 inches. - Screened to MIL-PRF-38534 - Power Supplies: ±15 V or +15 V and -12V ee Data Sh . +15 V 1553 DATA BUS -12 V OR -15 V +5 V RECEIVER STROBE BI PHASE TTL DATA PHASE MODULATED BIPOLAR DATA RX Data In SHORT OR LONG STUB COUPLING ISOLATION TRANSFORMER RX Data In RECEIVER SECTION PARATOR RX Data LIMITER FILTER RX Data DECODER PARATOR...