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BUS-8559
VARIABLE OUTPUT MIL-STD-1553 TRANSCEIVER
FEATURES
coupled to the data bus with the specified transformer*, and isolated (on the data side) with two 55 fault isolation resistors, and loaded with two 70 terminations (plus additional receivers), the data bus signal produced is a nominal 0 to 7.5 V pk-pk when measured at the output side of the 55 resistors. When both DATA and DATA, inputs are held low or high, the transmitter presents a high impedance to the line. An external inhibit input is also provided, which allows the the transmitter output to be removed from the line.. When a logic "1" is applied to the TX INHIBIT input, the transmitter is disabled, and the data inputs are ignored.
DESCRIPTION
Designed specifically for use in automatic test equipment where a variable transmitter output level is required, the DDC Model BUS-8559 transceiver is a complete transmitter and receiver conforming to MIL standards 1553A and 1553B. The receiver section accepts phasemodulated bipolar data at the input and produces a bi-phase TTL signal at the output, see FIGURE 1. Outputs, DATA and DATA, are positive and negative excursions of the input beyond an internally fixed threshold. The positive and negative thresholds are internally set at the factory for a nominal 1 V pk-pk signal, when measured at point "A" in FIGURE 2. An external strobe input is provided which allows the the receiver to be removed from the line. A logic "0" applied to RECEIVER STROBE will disable the receiver output. The BUS-8559 transmitter section accepts bi-phase TTL data at the input and produces a nominal 0 to 27 V pk-pk differential output across a 145 load. When the transmitter is
* Variable Transmitter Output * Transmitter/Receiver in a Single
24-Pin DDIP Hybrid
* Very Low Power Dissipation * Improved Receiver Filtering
Enhances System Bit Error Rate
* Meets MIL-STD-1553A and 1553B * Power Supplies:
15 V or +15 V and -12 V
APPLICATION
The BUS-8559 is suitable for any MIL-STD-1553 application which requires a transceiver. The BUS-8559 comes in a hermetic, 24-pin DDIP package which measures 1.4 x 0.8 x 0.2 inches.
-15
+15
+5
VAR VCC (O to +15 V)
BUS-8559
TRANSCEIVER COMPARATOR RECEIVER STROBE RX DATA LIMITER FILTER RX DATA COMPARATOR SHAPING NETWORK DRIVER DATA SHAPING NETWORK TX DATA TX INHIBIT TX DATA
BUS-25679
TRANSFORMER
DATA
DRIVER
BUS-8559 BLOCK DIAGRAM (c) 1999 Data Device Corporation
SPECIFICATIONS FOR BUS-8559 HYBRID WITH BUS-25679 TRANSFORMER PARAMETER RECEIVER SECTION Input Level Input Impedance Threshold Level VALUE 40 V pk-pk differential max 4 k differential min 1 V pk-pk nominal, internally set (direct mode) TTL, 10 LS loads 0.6 V max 2.5 V min 4 mA max -400 A max PIN 1 2 3 4 5 6 7 8 9 10 11 12
BUS-8559 PIN FUNCTION TABLE FUNCTION TX Data Out TX Data Out Gnd N.C. N.C. Variable Vcc RX Data Out Strobe GND RX Data Out N.C. N.C. PIN 13 14 15 16 17 18 19 20 21 22 23 24 FUNCTION +15V DC N.C. RX Data In RX Data In N.C. GND -15V DC +5V DC TX Inhibit TX Data In TX Data In N.C.
Output Levels Outputs: VOL VOH I OL I OH
TRANSMITTER SECTION Input Levels Inputs: Vih Vil Iih Iil Output Level
TTL, 2 LS loads 2 V min 0.8 V max 80 A max -3.2 mA 0-27 V pk-pk nominal across 145 load 0-20 V pk-pk nominal (measured at output of BUS-25679 XFMR output - XFMR coupled stub) 130 nsec typ 10 mV pk-pk differential max 0 to +15 V DC
.275 MAX (7.0) .250 MIN (6.3)
TERMINAL IDENTIFICATION THIS SIDE
SIDE VIEW
.63 MAX .200 .005 (5.1 0.1) 18 7 26 5 34 .500 .005 (13 0.1) .63 MAX (16.0)
Rise/Fall Time Output Noise Variable Vcc
.020 .002 (0.5 0.1) BOTTOM VIEW
NOTES: 1. All dimensions are in inches (millimeters). 2. Pin callouts on bottom view are for reference only.
POWER SUPPLIES REQUIREMENTS
P.S. VOLTS +5 V +15 V -15 V Vcc
STDBY mA 25 max 30 max 30 max 0
25% mA 22 max 30 max 30 max 70
100% mA 21 max 30 max 30 max 180
BUS-25679 TRANSFORMER OUTLINE
0.750 MAX (19.05)
0.150 MAX (3.81) 0.250 MIN (6.35)
NOTE: This unit will also operate with 12 V P.S.
12
13
TEMPERATURE RANGE Operating (Case temp.) Storage
1.390 MAX (33.02)
-55C to +125C -55C to +135C
1 24 0.6000.002 (15.2 0.05) BOTTOM VIEW
12 EQ.SP. 0.100=1.100 TOL. NONCUM (2.5=27.9) 0.100 (2.54)
PHYSICAL CHARACTERISTICS Size (24-pin DDIP hybrid)
0.095 (2.41)
0.020 0.51 DIA PIN 0.016 0.41 24 PLACES SIDE VIEW
1.4 x 0.8 x 0.2 inches (36 x 20 x 5 mm). 0.4 oz (11 g)
Weight
BUS-8559 MECHANICAL OUTLINE
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ORDERING INFORMATION
BUS-8559-XX0X Supplemental Process Requirements: S = Pre-Cap Source Inspection L = Pull Test Q = Pull Test and Pre-Cap Inspection Blank = None of the Above Process Requirements: 0 = Standard DDC Processing, no Burn-In (See page xiii.) 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 (See page xiii.) Temperature Grade/Data Requirements: 1 = -55C to +125C 2 = -40C to +85C 3 = 0C to +70C 4 = -55C to +125C with Variables Test Data 5 = -40C to +85C with Variables Test Data 8 = 0C to +70C with Variables Test Data NOTE: The transceiver and transformer must be ordered as separate parts. Transformer P/N: BUS-25679
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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. 7257 or 7381 Headquarters - Tel: (631) 567-5600 ext. 7257 or 7381, Fax: (631) 567-7358 Southeast - Tel: (703) 450-7900, Fax: (703) 450-6610 West Coast - Tel: (714) 895-9777, Fax: (714) 895-4988 Europe - Tel: +44-(0)1635-811140, Fax: +44-(0)1635-32264 Asia/Pacific - Tel: +81-(0)3-3814-7688, Fax: +81-(0)3-3814-7689 World Wide Web - http://www.ddc-web.com
ILC DATA DEVICE CORPORATION REGISTERED TO ISO 9001 FILE NO. A5976
J-ABR PRINTED IN THE U.S.A.
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