4444

Standard Products ACT4444 Transceiver for MIL-STD-1553 / MACAIR in a Chipscale Package Preliminary October 1, 2003 FEATURES ❑ ❑ ❑ ❑ ❑ ❑ ❑ Transceiver meets MIL-STD-1553A & B, Macair A3818, A4905, A5232 and A5690 specs Bipolar Supply ±15V to ±12V, Logic Supply +5V Replacement for function of CT3232 & ACT4404 in new designs Voltage source output Monolithic construction Aeroflex is a Class H & K MIL-PRF-38534 Manufacturer Miniature Chipscale Package Bumped Chip Carrier™ (BCC++) NOTE: BCC++ and Bumped Chip Carrier are Trademarks of Fujitsu Ltd. GENERAL DESCRIPTION The Aeroflex Laboratories transceiver model ACT4444 is a monolithic transceiver which provides full compliance with Macair and MIL-STD-1553 data bus requirements. The model ACT4444 performs the front-end analog function of inputting and outputting data through a transformer to a MIL-STD-1553 or Macair data bus with a few external components. The ACT4444 can be considered a "Universal" Transceiver in that it is compatible with MIL-STD-1553A, B, Macair A-3818, A-4905, A-5232 and A-5690. Design of these transceivers reflects particular attention to active filter performance. This results in low bit and word error rate with superior waveform purity and minimal zero crossover distortion. The ACT4444 active filter design has additional high frequency roll-off to provide the required Macair low harmonic distortion waveform without increasing the pulse delay characteristics significantly. Efficient transmitter electrical and thermal design provides low internal power dissipation and heat rise at high and well as low duty cycles. An optional receiver input threshold adjustment can be accomplished by the use of the "External Threshold" terminals. TRANSMITTER The Transmitter section accepts bi-phase TTL data at the input and when coupled to the data bus with a 1:1 transformer, isolated on the data bus side with two 55 Ohm fault isolation resistors, and loaded by two 70 thru 85 Ohm terminations plus additional receivers, the data bus signal produced is 7.0 Volts minimum P-P at A-A’ (See Figure 3 or 4). When both DATA and DATA inputs are held low or high, the transmitter output becomes a high impedance and is “removed” from the line. In addition, an overriding “INHIBIT" input provides for the removal of the transmitter output from the line. A logic “1” applied to the “INHIBIT” takes priority over the condition of the data inputs and disables the transmitter (See Transmitter Logic Waveforms - Figure 1). The transmitter utilizes an active filter to suppress harmonics above 1 MHz to meet Macair specifications A-3818, A-4905, A-5232 and A-5690. The transmitter may be safely operated for an indefinite period at 100% duty cycle into a data bus short circuit. RECEIVER The Receiver section accepts bi-phase differential data at the input and produces two TTL signals at the output. The outputs are DATA and DATA, and represent positive and negative excursions of the input beyond a pre-determined threshold (See Receiver Logic Waveforms Figure 2). The internal threshold is nominally set to detect data bus signals exceeding 1.05 Volts P-P and reject signals less than 0.6 Volts P-P when used with a 1:1 turns ratio transformer (See Figure 3 or 4 for transformer data and typical connections). This threshold setting can be held by grounding the appropriate pins or modified with the use of external resistors. A low level at the Strobe input inhibits the DATA and DATA outputs. If unused, a 2K Ohm pull-up to +5 Volts is recommended. SCD4444 Rev B TX DATA OUT TX DATA IN TX DATA IN TX INHIBIT EXT. THRESHOLD DATA DATA SET INTERNAL THRESHOLD DATA EXT. THRESHOLD DATA +5 V -12V or -15V RX DATA IN RX DATA IN +15V or +12V STROBE INPUT AMP COMP. RX DATA OUT DRIVER SHAPING V+ OUTPUT STAGE TX DATA OUT V- ACTIVE FILTER COMP. RX DATA OUT BLOCK DIAGRAM (WITHOUT TRANSFORMER) DATA IN DATA IN INHIBIT LINE TO LINE OUTPUT Notes: 1. Line to line waveforms illustrate Macair signals, MIL-STD-1553 signals are trapezoidal. 2. DATA and DATA inputs must be complementary waveforms or 50% duty cycle average, with no delays between them. 3. DATA and DATA must be in the same state during off time (both high or low). FIGURE 1 - TRANSMITTER LOGIC WAVEFORMS LINE TO LINE INPUT DATA OUT DATA OUT Note overlap FIGURE 2 - RECEIVER LOGIC WAVEFORMS NORMALLY HIGH OR LOW OUTPUT IN STANDBY (SEE FIGURE 3 OR 4) SCD4444 Rev B 2 ABSOLUTE MAXIMUM RATINGS Operating Case Temperature Storage Case Temperature Power Supply Voltages Logic Input Voltage Receiver Differential Input Receiver Input Voltage (Common Mode) Driver Peak Output Current Total Package Power Dissipation over the Full Operating Case Temperature Range * Maximum Junction to Case Temperature Junction-Case, Thermal Resistance * See Aeroflex Application Note # 112 for reference. ±16 V -0.3 V to +5.5 V ±40 V ±10V 150 mA 3.25 Watts 3.25°C 1°C/W -40°C to +85°C -65°C to +150°C +7 V ELECTRICAL CHARACTERISTICS – TRANSMITTER SECTION 1/ 2/ INPUT CHARACTERISTICS, TX DATA IN OR TX DATA IN Parameter "0" Input Current "1" Input Current "0" Input Voltage "1" Input Voltage Condition VIN = 0.4 V VIN = 2.7 V Symbol IILD IIHD VIHD VIHD Min 2.0 Typ -0.2 1.0 Max -0.4 40 0.7 Unit mA µA V V INHIBIT CHARACTERISTICS "0" Input Current "1" Input Current "0" Input Voltage "1" Input Voltage Delay from TX inhibit(0→1) to inhibited output Delay from TX inhibit, (1→0) to active output Differential output noise, inhibit mode Differential output impedance * * See Aeroflex Application Note # 113 for reference. VIN = 0.4 V VIN = 2.7 V 3/ 4/ IILI IIHI VILI VIHI tDXOFF tDXON VNOI ZOI 2 2K -0.2 1.0 300 300 0.8 -0.4 40 0.7 500 500 10 mA µA V V nS nS mVp-p Ω OUTPUT CHARACTERISTICS Differential output - Direct coupled stub (See Figure 3 or 4) Differential output offset - Direct coupled stub Figure 3 or 4 Differential output rise / fall times (See Figure 5) Delay from 50% point of TX DATA or TX DATA input to zero crossing of differential output. Pt. B - B’ ZO = 70Ω-85Ω 5/ 10% - 90% VO VOS tR & tF tDTX 26 200 29 250 280 32 ±360 300 350 Vp-p mVpk nS nS SCD4444 Rev B 3 ELECTRICAL CHARACTERISTICS – RECEIVER SECTION 1/ 2/ Parameter Differential Input Impedance Differential Input Voltage Range Input Common Mode Voltage Range Common Mode Rejection Ratio Condition f = 1MHz Symbol ZIN VIDR VICR CMRR Min 10K 10 40 Typ Max 40 Unit Ω Vp-p Vp-p dB STROBE CHARACTERISTICS (LOGIC "0" INHIBITS OUTPUT) "0" Input Current "1" Input Current "0" Input Voltage "1" Input Voltage Strobe Delay (Turn-on or Turn-off) VS = 0.4 V VS = 2.7 V IIL IIH VIL VIH tSD 2.0 -0.2 1.0 -0.4 +40 0.7 250 mA µA V V nS THRESHOLD CHARACTERISTICS (SINEWAVE INPUT ) Internal Threshold Voltage (See Figure 3 or 4) Pt. B - B’ 1MHz VTH 0.60 0.80 1.10 Vp-p OUTPUT CHARACTERISTICS, RX DATA AND RX DATA "1" State "0" State Delay (average), from differential input zero crossings to RX DATA and RX DATA output 50% points IOH = -0.4 mA IOL = 4 mA 6/ VOH VOL tDRX 2.5 3.6 0.35 300 0.5 500 V V nS POWER SUPPLY CURRENT 1/ 2/ Duty Cycle Transmitter Standby 25% Condition Pt. B - B’, ZO = 70 Ω, VO = 29 VPK-PK Bit Pattern = FFFFHEX Figure 3 or 4 Symbol ICC IEE IL ICC IEE IL ICC IEE IL ICC IEE IL 4 Typ 5 25 18 20 40 18 40 60 18 85 105 18 Max 10 35 30 30 60 30 Unit 50% mA 60 80 30 120 140 25 100% SCD4444 Rev B TYPICAL HYBRID POWER DISSIPATION * Power Supply Conditions PSC1 VCC = +15V VEE = -15V VL = +5V PSC2 VCC = +15V VEE = -12V VL = +5V PSC3 VCC = +12V VEE = -12V VL = +5V Condition Pt. B - B’, ZO = 70 Ω, VO = 29 VPK-PK Bit Pattern = FFFFHEX Figure 3 or 4 Standby 100% Duty Cycle Unit 0.540 2.167 0.465 1.852 Watts 0.450 1.600 * See Aeroflex Application note# 112 for reference. RECOMMENDED POWER SUPPLY VOLTAGE RANGE VCC VEE VL +11.4 Volts to +15.75 Volts -11.4 Volts to -15.75 Volts +4.5 Volts to +5.5 Volts Notes: 1. VCC = +15Volts ±0.75V, VEE = -15Volts ±0.75V, VIL = +5Volts ±0.5V, TC = -40°C to +85°C, unless otherwise specified. 2. All typical values are measured at +25°C. 3. Characteristics guaranteed by design, not production tested. 4. Power ON/OFF, measured from 75KHz to 1MHz at Point A-A’ Figure 3 or 4, in accordance with MIL-STD-1553B paragraph 4.5.2.2.2.3. 5. At point A-A’ on Figure 3 or 4, 2.5µS after midpoint crossing of the parity bit of the last word of a 660 µS message. 6. This test is peformed while the Transceiver is reading its own transmission. This condition is called "Wraparound". Standard TTL loads applied to RX DATA Outputs. SCD4444 Rev B 5 +5Vdc + 0.01µF CERAMIC +15Vdc + TANTALUM 6.8µF 34, 54, 56 VL 1, 18 VCCTX 9 53 VCCRX Tx DATA OUT 10KΩ, 5% 0.01µF CERAMIC 1 6.8µF TANTALUM Zo * VCCTX Tx DATA IN Tx DATA IN Tx INHIBIT IN 59 58 57 6 8 11 13 19 5KΩ 1/ 5KΩ 1/ 10-15pF 2/ NPO Tx DATA IN Tx DATA IN Tx INHIBIT IN Tx DATA BUF IN Tx DATA FIL OUT Tx DATA FIL OUT Tx DATA BUF IN VREF * 3 0.47µF CERAMIC 1:1 4 5 55 B Tx DATA OUT A Data Bus Wire Pair Rx DATA IN 52 2 6 7 Tx DATA OUT * 16 3 8 B' 55 Tx DATA OUT A' Pulse 1553-1 or Equivalent Rx DATA IN Rx FIL OUT 51 Zo 48 41 0.01µF CERAMIC 23 VCA CONT 1 ACT4444 COMP IN 26 GND1 Rx 2 OUT Rx 1 OUT 28 30 27 33 32 31 36 38 37 45 39 40 44 NC NC Rx DATA OUT Rx DATA OUT Rx STROBE IN 20 CTRUNC Rx STROBE IN COMP 1 NI 60 50KΩ 1% 61 50KΩ 1% 55 42 50 29 46 43 DEXORIN DEXORIN COMP 1 NH Rx 1 IN GND2 Rx GND1 Rx GND2 Rx GND3 +VTH RTN -VTH RTN VEERX 35, 47 VEETX 10 VEETX 5, 14 Rx 2 IN COMP 2 NH COMP 2 NI +VTH COMP +VTH IN COMP -VTH IN * -VTH -15Vdc Notes: 1/ 5KΩ Tolerance ±5%, Ratio 1%. 2/ Range 10-15pF. To adjust positive half of command sync for nominal 1500ns. * High current lines (~100mA) 0.01µF CERAMIC 6.8µF + TANTALUM FIGURE 3 – TYPICAL CONNECTIONS – DATABUS INTERFACE, DIRECT COUPLED STUB, NORMALLY HIGH RECEIVER IDLE STATE +5Vdc + 0.01µF CERAMIC +15Vdc + TANTALUM 6.8µF 34, 54, 56 VL 1, 18 VCCTX 9 53 VCCRX Tx DATA OUT 10KΩ, 5% 0.01µF CERAMIC 1 6.8µF TANTALUM Zo * VCCTX Tx DATA IN Tx DATA IN Tx INHIBIT IN 59 58 57 6 8 11 13 19 5KΩ 1/ 5KΩ 1/ 10-15pF 2/ NPO Tx DATA IN Tx DATA IN Tx INHIBIT IN Tx DATA BUF IN Tx DATA FIL OUT Tx DATA FIL OUT Tx DATA BUF IN VREF * 3 0.47µF CERAMIC 1:1 4 5 55 B Tx DATA OUT A Data Bus Wire Pair Rx DATA IN 52 2 6 7 Tx DATA OUT * 16 3 8 B' 55 Tx DATA OUT A' Rx DATA IN Rx FIL OUT 51 48 41 0.01µF CERAMIC Pulse 1553-1 or Equivalent Zo 23 VCA CONT 1 ACT4444 COMP IN 26 GND1 Rx 1 OUT Rx 2 OUT 30 28 27 33 32 31 36 38 37 45 39 40 44 NC NC Rx DATA OUT Rx DATA OUT Rx STROBE IN 20 CTRUNC Rx STROBE IN COMP 1 NI 60 50KΩ 1% 61 50KΩ 1% DEXORIN DEXORIN COMP 1 NH Rx 1 IN 55 42 50 29 46 43 GND2 Rx GND1 Rx GND2 Rx GND3 +VTH RTN -VTH RTN VEERX 35, 47 VEETX 10 VEETX 5, 14 Rx 2 IN COMP 2 NH COMP 2 NI +VTH COMP +VTH IN COMP -VTH IN * -VTH -15Vdc Notes: 1/ 5KΩ Tolerance ±5%, Ratio 1%. 2/ Range 10-15pF. To adjust positive half of command sync for nominal 1500ns. * High current lines (~100mA) 0.01µF CERAMIC 6.8µF + TANTALUM FIGURE 4 – TYPICAL CONNECTIONS – DATABUS INTERFACE, DIRECT COUPLED STUB, NORMALLY LOW RECEIVER IDLE STATE SCD4444 Rev B 6 LAST BIT tf* 90% Magnified View OUTPUT OFFSET 6.5V P-P MIN 8.0V P-P MAX * 0 Volts 0 Volts OUTPUT OFFSET * 10% 2.5 µsec tr * * Rise and fall times measured at point A-A’ in Figure 3 or 4 *Offset measured at point A-A’ in Figure 3 or 4 FIGURE 5 – TRANSMITTER (TX) OUTPUT WAVE FORM FIGURE 6 – TRANSMITTER (TX) OUTPUT OFFSET 4.0 3.6 3.2 POWER DISSIPATION WATTS 2.8 2.4 2.0 1.6 1.2 0.8 0.4 0 0 10 20 30 40 50 60 70 80 90 100 PSC 3 PSC 1 PSC 2 DUTY CYCLE, PERCENT FIGURE 7 – TYPICAL HYBRID POWER DISSIPATION vs DUTY CYCLE SCD4444 Rev B 7 PACKAGE PIN OUT DESCRIPTION - ACT4444 Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Function VCCTX * NC TX DATA OUT * NC VEETX * TX DATA BUF IN VCA DATA OUT TX DATA FIL OUT VCCTX VEETX TX DATA FIL OUT VCA DATA OUT TX DATA BUF IN VEETX * NC TX DATA OUT * NC VCCTX * VREF CTRUNC NC NC VCA CONT1 NC NC GND 1 RX STROBE IN RX 2 OUT RX GND 3 RX 1 OUT RX 1 IN COMP 1 NH Pin # 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Function COMP 1 NL VL VEERX RX 2 IN COMP 2 NL COMP 2 NH COMP +VTH IN COMP -VTH IN COMP IN RX GND 1 -VTH RTN -VTH +VTH +VTH RTN VEERX RX FIL OUT NC RX GND 2 RX DATA IN RX DATA IN VCCRX VL GND 2 VL TX INHIBIT IN TX DATA IN TX DATA IN DEXORIN DEXORIN NC NC NC NC = No Connect * High Current Line (~100mA) SCD4444 Rev B 8 PACKAGE DESCRIPTION TOP VIEW PIN 1 IDENTIFER & ESD INDICATOR 0.80 MAX Y X Z MM 9 8.2 8.15 0.8 Inches .354 .323 .321 .0315 .026 .020 .018 .012 .008 .00394 .00315 .00295 .002 .0012 .001 .0008 9.00 ± .10 0.20 0.67± .025 .075± .025 ACT4444 9.00 ± 0.10 0.67 0.5 0.45 0.3 0.2 0.1 0.08 0.075 .20 Z .05 Z 0.05 0.03 0.025 0.020 BOTTOM VIEW 8.2 TYP .50 TYP Pin 17 .50 TYP .50± .10 Pin 33 .45 ± .03 .08 M Z X Y .45 ± .03 .08 M Z X Y .45 ± .03 .08 M Z X Y 6.8 7.4 8.2 TYP C.L.(Pkg) C.L.(Pkg) 7.4 6.8 8.15 TYP .50± .10 DETAIL "C" (3 PL) .40 ±.03 .08 M Z X Y .30 ± .03 .08 M Z X Y C .20 x 45° "B" C .20 x 45° Pin 1 "A" Pin 49 8.15 TYP "C" .45 ± .03 .08 M Z X Y DETAIL "A" Notes 1. Dimensions in millimeters DETAIL "B" (60 PL) SCD4444 Rev B 9 CONFIGURATIONS AND ORDERING INFORMATION Model No. ACT4444 Screening Level Industrial Temperature -40°C to +85°C Receiver And Transmitter Data Levels User Configurable (See Figure 3 & 4) Package 64 Bump Chip Carrier PLAINVIEW, NEW YORK Toll Free: 800-THE-1553 Fax: 516-694-6715 SE AND MID-ATLANTIC Tel: 321-951-4164 Fax: 321-951-4254 INTERNATIONAL Tel: 805-778-9229 Fax: 805-778-1980 WEST COAST Tel: 949-362-2260 Fax: 949-362-2266 NORTHEAST Tel: 603-888-3975 Fax: 603-888-4585 CENTRAL Tel: 719-594-8017 Fax: 719-594-8468 www.aeroflex.com info-ams@aeroflex.com Aeroflex Microelectronic Solutions reserves the right to change at any time without notice the specifications, design, function, or form of its products described herein. All parameters must be validated for each customer's application by engineering. No liability is assumed as a result of use of this product. No patent licenses are implied. SCD4444 Rev B Our passion for performance is defined by three attributes represented by these three icons: solution-minded, performance-driven and customer-focused 10