Make sure the next Card you purchase has... DSC-10510 7 VA DIGITAL-TO-SYNCHRO (D/S) CONVERTER (R) FEATURES * 7 VA Drive Capability for CT, CDX, or TR Loads * Double Buffered Transparent Input Latch * 16-Bit Resolution * Up to 2 Minute Accuracy * Power Amplifier Uses Pulsating or DC Supplies * Built-In-Test (BIT) Output DESCRIPTION The DSC-10510 is a high power Digital-to-Synchro converter, with 16-bit resolution and up to 2 minute accuracy. The DSC-10510 is capable of driving multiple Control Transformer (CT), Control Differential Transmitter (CDX) and Torque Receiver (TR) loads up to 7 VA. The DSC-10510 contains a high accuracy D/R converter, a triple power amplifier stage, a walk-around circuit (to prevent torque receiver hangups), and thermal and over-current protection circuits. The hybrid is protected against overloads, load transients, over-temperature, loss of reference, and power amplifier or DC power supply shutdown. Microprocessor compatibility is provided through a 16-bit/2-byte double-buffered input latch. Data input is natural binary angle in TTL compatible parallel positive logic format. Packaged in a 40-pin TDIP, the DSC-10510 features a power stage that may be driven by either a standard 15 VDC supply or by a pulsating reference supply when used with an optional power transformer. When powered by the reference source, heat dissipation is reduced by 50%. APPLICATIONS The DSC-10510 can be used where digitized shaft angle data must be converted to an analog format for driving CT's, CDX's, and TR loads. With its double buffered input latches, the DSC-10510 easily interfaces with microprocessor based systems such as flight simulators, flight instrumentation, fire control systems, and flight data computers. 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. 7771 (c) M 1986, 1999 Data Device Corporation DDC Custom Monolithics utilized in this product are copyright under the Semiconductor Chip Protection Act. Data Device Corporation www.ddc-web.com R 36 100k -R + 17 RH' 3.4 V REF 30 29 -V OR -15 V REMOTE SENSE 24 23 D/R CONVERTER HIGH ACCURACY LOW SCALE FACTOR VARIATION 19 S1' COS 20 S1 21 S2 13k 34 15 VDC 2 39 -R THERMAL SENSE 140 CASE TRANSPARENT LATCH 28 31 LA 33 LM 1-8 BITS 1-8 9-16 32 BITS 9-16 LL 15 VDC -R 37 40 K S3 POWER STAGE ENABLE WALK AROUND CIRCUIT TRANSPARENT LATCH S2 26 S3' 22 S3 DELAY OVER-CURRENT S1 25 S2' ELECTRONIC SCOTT-T & TRIPLE POWER AMPLIFIER 13k 35 RL' +V OR +15 V SIN 18 RL -15 VDC 100k RH 26 V REF +15 VDC EN DSC-10510 L-05/04-0 FIGURE 1. DSC-10510 BLOCK DIAGRAM 38 BS BIT TABLE 1. DSC-10510 SPECIFICATIONS PARAMETER VALUE 16 bits RESOLUTION Loading K (Note 1) 1 LSB max in the 16th bit 40 s max OUTPUT SETTLING TIME DIGITAL INPUT/OUTPUT Logic Type Digital Inputs Bit 1 = MSB, Bit 16 = LSB 2 or 4 minutes ACCURACY DIFFERENTIAL LINEARITY DESCRIPTION For any digital input step change (passive loads) TTL/CMOS compatible All inputs except K (Kick pin 40) Bits 1 - 16, BS, and EN LL, LM, and LA (CMOS transient protected) Ground to enable Kick circuit, open to disable; pulls self up to +15V. Logic 0 = 0.8 V max Logic 1 = 2.0 V min 20 A max to GND//5pf max 20 A max to +5V//5pf max 20 A max Digital Outputs BIT Drive Capability REFERENCE INPUT Type Max Voltage w/o Damage Frequency Input Impedance Single Ended Differential SYNCHRO OUTPUT Voltage L-L Scale Factor Variation Current CT, CDX or TR Load DC Offset Logic 0 for BIT condition (see BIT pin function) 1.6mA at 0.4V max 0.4mA at 2.8V min Logic 0 = 1 TTL Load Logic 1 = 10 TTL Loads 26 Vrms differential 3.4 Vrms differential RH - RL RH' - RL' 72.8 Vrms for RH - RL 9.52 Vrms for RH' - RL' DC to 1 kHz 100k Ohms 0.5% 13k Ohms 0.5% 200k Ohms 0.5% 26k Ohms 0.5% RH - RL RH' - RL' RH - RL RH' - RL' 11.8 Vrms 0.5% for nom Ref V 0.1% max Simultaneous amplitude variation on all output lines as a function of digital angle. 700 mA rms max 7 VA max 15 mV max Each line to ground. Varies with angle. Output protected from overcurrent, voltage feedback transient, and over temperature, loss of reference, loss of power amplifier, and loss of DC supply voltage. Protection POWER SUPPLY CHARACTERISTICS Nominal Voltage Voltage Range Max Voltage w/o Damage Current V 20 V peak max, 3 V above output min 18V 25 V 25 mA max load dependent TEMPERATURE RANGES Operating (Case) -3XX -1XX Storage 0C to +70C -55C to +125C -65C to +150C PHYSICAL CHARACTERISTICS Size Weight Note 1: 15 V 5% 2.0 x 1.1 x 0.2 inches (50.8 x 27.9 x 5.1 mm) 0.9 oz (25.5 g) 40 Pin Triple DIP DSC-10510-303 accuracy = 4 minutes (No Load) + 1.6 minutes at full load (7 VA Inductive) DSC-10510-304 accuracy = 2 minutes (No Load) + 1.6 minutes at full load (7 VA Inductive) Data Device Corporation www.ddc-web.com 3 DSC-10510 L-05/04-0 INTRODUCTION It is also recommended that the KICK pin, if unused, be left in the "No Connection" (N/C) state. The internal pull up will disable the pin (this removes any unnecessary voltages from the converter). SYSTEM CONSIDERATIONS: POWER SURGE AT TURN ON The output power stages can fully turn on before all the supplies stabilize, when power is initially applied. Multiple D/S converters with substantial loads can cause the system power supply to have difficulty coming up and may even cause the supply to shut down. It is important that the power supply can handle the turnon surge or that the D/S turn-ons be staggered. Typically, the surge will be twice the max rated draw of the converter. TORQUE LOAD MANAGEMENT The above problems are compounded by the high power levels involved when multiple torque loads (TR) are being driven. In this configuration, power supply fold back problems are common unless the stagger technique is used. The load will also need time to stabilize. On turn-on it is likely that some of output loads will be at a different angle than the D/S output. As the angular difference increases so does the power draw until the difference is 180 degrees. At this point the load impedance drops to Zss and current draw is at a maximum. POWER SUPPLY CYCLING Power supply cycling of the DSC-10510 should follow the guidelines below to avoid any potential problems. PULSATING POWER SUPPLIES D/S and D/R converters have been designed to operate their output power stages with pulsating power to reduce power dissipation and power demand from regulated supplies. Figures 2 and 3 illustrate this technique. The power output stage is only supplied with enough instantaneous voltage to be able to drive the required instantaneous signal level. The AC reference can be full wave rectified and applied to the push-pull output drivers since the output signal is required to be in phase with the AC reference. The supply voltage will be just a few volts more than the output signal and internal power dissipation is minimized. Strictly maintain proper sequencing of supplies and signals per typical CMOS circuit guidelines: - Apply power supplies first (+15, -15V and ground). - Apply digital control signals next. - Apply analog signals last. The reverse sequence should be followed during power down of the circuit. 6 3.4V rms 7 3 1 REFERENCE SOURCE 4 21.6V rms C.T. RL' 26V rms 400Hz 2 T1 42359 D1 D2 5 + D3 S1' S1 S1 GND S2' S2 S2 -V S3' S3 S3 C1 + D4 +v RH' +V C2 +DC SUPPLY LEVEL POSITIVE PULSATING SUPPLY VOLTAGE AMPLIFIER OUTPUT VOLTAGE ENVELOPE DSC10510 NEGATIVE PULSATING SUPPLY VOLTAGE DIGITAL INPUT 15VDC -v -DC SUPPLY LEVEL NOTES: PARTS LIST FOR 400Hz D1, D2, D3, D4 = 1N4245 C1 AND C2 = 47F, 35V DC CAPACITOR FIGURE 2. TYPICAL CONNECTION DIAGRAM UTILIZING PULSATING POWER SOURCE Data Device Corporation www.ddc-web.com FIGURE 3. PULSATING POWER SUPPLY VOLTAGE WAVEFORMS 4 DSC-10510 L-05/04-0 current therefore is 7VA/10.2 V = 0.68 A rms. The output is L-L push-pull, that is, all the current flows from the positive supply out to the load and back to the negative supply. The power input is the DC voltage times the average current or 30 V x (0.68 A x 0.635/0.707) [avg/rms] = 18.32 Watts. +15VDC LIGHT LOAD HEAVY LOAD The power dissipated by the output driver stage is over 18 Watts shared by the six power transistors. Since one synchro line supplies all the current while the other two share it equally, one will dissipate 2/3 of the power and the other two will each dissipate 1/3. There are 2 transistors per power stage so each of the two transistors dissipates 1/3 of the power and the other transistors dissipate 1/6 of the power. This results in a maximum power in any one transistor of 1/3 x 18.32 W = 6.04 Watts. The heat rise from the junction to the outside of the package, assuming a thermal impedance of 4C per watt = 24.16C. At an operating case temperature of 125C the maximum junction temperature will be 149.16C. -15VDC FIGURE 4. LOADED WAVEFORMS THERMAL CONSIDERATIONS Power dissipation in D/S and D/R circuits is dependent on the load, whether active (TR) or passive (CT or CDX), and the power supply, whether DC or pulsating. With inductive loads virtually all the power consumed will have to be dissipated in the output amplifiers. This can require considerable care in heat sinking. Example: For illustrative purposes the following thermal calculations are made using the DSC-10510's specifications. The DSC-10510 has a 7 VA drive capability for CT, CDX, or TR loads. The other extreme condition to consider is when the output voltage is 11.8 V. The current then will be 0.42 Amps and the power will be 30 x (0.42A x 0.635/0.707) = 11.32 Watts. A similar calculation will show the maximum power per transistor to be 2.3 Watts. This is much less than when the output voltage is 10.2 V. Simplest case first: Passive Inductive Load and 15 Volt DC power stage supplies (as shown in Figure 2). The power dissipated in the power stage can be calculated by taking the integral of the instantaneous current multiplied by the voltage difference from the DC supply that supplies the current and instantaneous output voltage over one cycle of the reference. For an inductive load this is a rather tedious calculation. Instead take the difference between the power input from the DC supplies minus the power delivered to the load. An actual synchro load is highly inductive with a Q of 4-6; therefore assume that it is purely reactive. The power out, then, is 0 Watts. As a worst case scenario, also assume the load is the full 7 VA, the converter's rated load. For Pulsating Supplies the analysis is much more difficult. Calculations for a purely reactive load with DC supplies equal to the output voltage peak vs. pulsating supplies with a supply voltage equal to the output voltage yield an exact halving of the power dissipated. At light loads the pulsating supplies approximate DC supplies and at heavy loads, which is the worst case, they approximate a pulsating supply as shown in Figure 4. Advantages of the pulsating supply technique are: * Reduced load on the regulated 15 VDC supplies * Halving of the total power The VA delivered to the load is independent of the angle but the voltage across the synchro varies with the angle from a high of 11.8 Volts line-to-line (L-L) to a low of 10.2 V L-L. The maximum 3-WIRE SYNCHRO R2=1 1/3 * Simplified power dissipation management 2-WIRE REF R1=2/3 R1 REF IN ZSO=8.6 D/S R2 R2 R1 REF REF REF ACTIVE LOAD TORQUE TRANSMITTER NOTES: R1 + R2 ZSS FIGURE 5. EQUIVALENT 2-WIRE CIRCUIT Data Device Corporation www.ddc-web.com TORQUE RECEIVER FIGURE 6. TORQUE SYSTEM 5 DSC-10510 L-05/04-0 11/3 2 smaller angular steps, so the torque system is always at or near null. Large digital steps, load disturbances, a stuck torque receiver or one synchro line open, however, cause an off null condition. 2/3 RH ZSO=8.6 D/S REF IN At null the load current could be zero (See Figure 9 ). If Vac = Vab, both in magnitude and phase, then, when "a" is connected to "b," no current will flow. Pick C1 and C2 to match the phase lead of R1 - Zso. In practice this ideal situation is not realized. The input to output transformation ratio of torque receivers is specified at 2% and the turns ratio at 0.4%. The in-phase current flow due to this nominal output voltage (10.2 V) multiplied by the % error (2.4/100) divided by total resistance (4 Ohms) = 61mA. A phase lead mismatch between the torque receiver and the converter of 1 degree results in a quadrature current of 10.2 V x sin 1/4 Ohms = 44.5 mA. Total current is the phaser sum 61 + 44.5 = 75.5 mA. Power dissipation is 30 VDC x 75.5 mA rms x 0.9 (avg/rms) = 2.04 Watts. Since this is a light load condition, even pulsating supplies would be approximating DC supplies. REF RL TORQUE LOAD WITH DISCRETE EXTERNAL RESISTOR FIGURE 7. D/S EQUIVALENT ACTIVE LOAD Active loads (torque receivers) make it more difficult to calculate power dissipation. The load is composed of an active part and a passive part. Figure 5 illustrates the equivalent two wire circuit. At null, when the torque receiver's shaft rotates to the angle that minimizes the current in R2, the power dissipated is at its lowest. The typical ratio of Zso/Zss = 4.3. For the maximum specified load of Zss = 2 ohm, the Zso = 2 x 4.3 = 8.6 ohms. Also, the typical ratio of R2/R1= 2. The off null condition power dissipation is quite different. Actual synchros have no current limiting, so the circuit current is the current that the circuit conditions demand. The worst case would be for a 180 degree error between the two synchros as shown in Figure 10. For this condition the two equivalent voltage sources are 10.2 V opposing. The current is (10.2 x 2) / 4 = 5.1 A in phase. In synchro systems with a torque transmitter driving a torque receiver, the actual line impedances are as shown in Figure 6. The torque transmitter and torque receiver are electrically identical, so that the total line impedance is double that of Figure 5. The torque system is designed to operate this way. The higher the total line impedances, the lower the current flow at null and the lower the power dissipation. It is recommended that with torque loads, discrete resistors be used as shown in Figures 7 and 8. The power dissipated in the converter is the power supplied by the 15 VDC supplies minus the power delivered to the load (30 V x 5.1 A x 0.9) - (10.2 V x 5.1 A) = 87.7 Watts for DC supplies. This requires a large power supply and high wattage resistors. The converter output current is typically limited (in the DSC10510 case to 0.8 A peak). This limits the power supply to more reasonable values but introduces another problem - the torque receiver can hang up in a continuous current limited condition at a false stable null. The DSC-10510 has special circuits that sense this continuous current overload condition and sends a A torque load is normally at null. Once the torque receiver nulls at power turn on, the digital commands to the D/S are typically in S1 1.33 1 1/3 R1 2/3 RH RH S2 1.33 A S2 D/S REF IN 2 C1 S1 TR S3 1.33 REF REF C RL S3 RL C2 FIGURE 8. D/S - ACTUAL HOOK-UP Data Device Corporation www.ddc-web.com B Zso=8.6 D/S REF IN FIGURE 9. IDEAL NULL CONDITION 6 DSC-10510 L-05/04-0 +15V 2 D/S An additional advantage of using pulsating power supplies is that the loss of reference when driving torque loads is fail safe. The load will pump up the V voltage through the power stage clamp diodes and the loss of the reference detector will disable the power stage. The power stage will be turned off with the required power supply voltages. The pulsating power supply diodes will isolate the pumped up pulsating supplies from the reference. If the DC power supplies are to be used for the power stage, and there is a possibility of the DC supplies being off while the reference to the torque receiver is on, then the protection circuitry shown in Figure 11 is highly recommended. 2 10.2V 10.2V - 15V FIGURE 10. WORST CASE 180 ERROR A remote sense feature is incorporated in DDC's DSC-10510 hybrid digital-to-synchro converter. Rated at 7 VA, it offers accuracies to 2 minutes of arc at the load. This remote sense feature operates just as other precision sources do. A separate line is run to each leg of the synchro (in addition to the drive line) to sense the voltage actually appearing on the load. This is then used to regulate the output based on load voltage rather than converter output voltage. This feature is very useful in driving heavy passive loads in precision systems. momentary 45 "kick" to the torque receiver thus knocking it off the false null. The torque receiver will then swing to the correct angle and properly null. If the torque receiver is stuck it will not be able to swing off the over-current condition. In this case the converter will send a BIT signal when the case temperature exceeds 140C. This BIT signal can be used to shut down the output power stage. +15VDC + +V D/S -V -V -15VDC FIGURE 11. PROTECTION CIRCUITRY Data Device Corporation www.ddc-web.com 7 DSC-10510 L-05/04-0 200 nS min. TRANSPARENT LATCHED DATA 1-16 BITS 50 nS min. Data Changing 100 nS min. Data Stable FIGURE 12A. LL, LM, LA TIMING DIAGRAM (16 BIT) LA 200 nS min. 200 nS min. LM Bits (1-8) 200 nS min. LL Bits (9-16) 50 nS min. DATA 50 nS min. 100 nS min. 100 nS min. LA, LM, LL Transparent = Hi Latched = Lo Data Changing Data Stable FIGURE 12B . LL, LM, LA TIMING DIAGRAM (8 BIT) Data Device Corporation www.ddc-web.com 8 DSC-10510 L-05/04-0 TABLE 2. DSC-10510 PIN FUNCTIONS PIN NAME 1 DO1 Digital Input 01 (MSB) Logic "1" enables. 2 DO2 Digital Input 02 3 DO3 Digital Input 03 4 DO4 Digital Input 04 5 DO5 Digital Input 05 6 DO6 Digital Input 06 7 DO7 Digital Input 07 8 DO8 Digital Input 08 FUNCTION 9 DO9 Digital Input 09 10 DO10 Digital Input 10 11 DO11 Digital Input 11 12 DO12 Digital Input 12 13 DO13 Digital Input 13 14 DO14 Digital Input 14 15 DO15 Digital Input 15 16 DO16 Digital Input 16 (LSB) 17 RL 26 Vrms Reference Low Input 18 RH 26 Vrms Reference High Input 19 S1' Synchro S1 Remote Sense Output 20 S1 Synchro S1 Output 21 S2 Synchro S2 Output 22 S3 Synchro S3 Output 23 +V Power Stage +V 24 -V Power Stage -V 25 S2' Synchro S2 Remote Sense Output 26 S3' Synchro S3 Remote Sense Output 27 NC No Connection 0.17 MIN (4.32) 1.140 (28.96) 20 21 0.018 0.002 (0.46 0.05) DIA PIN 19 EQ. SP. 0.100 = 1.9 TOL. NONCUM (2.5 = 48.3) 2.14 (54.36) 1 40 0.900 (22.86) 0.120 0.002 (3.05 0.05) 0.120 0.002 (3.05 0.05) 0.200 MAX (5.08) BOTTOM VIEW SIDE VIEW Notes: 1. Dimensions are in inches (millimeters). 2. Lead identification numbers for reference only. 3. Lead cluster shall be centered within 0.10 of outline dimensions. Lead spacing dimensions apply only at seating plane. 4. Pin material meets solderability requirements of MIL-PRF-38534 FIGURE 13. DSC-10510 MECHANICAL OUTLINE 40-PIN TDIP TABLE 3.ANGLES IN DEGREES CROSS REFERENCED TO A 16-BIT DIGITAL WORD 28 GND Ground 29 -15 V Power Supply 30 + 15V Power Supply 1 2 3 4 5 6 7 8 31 LA 2nd Latch All Enable. Input enables dual latch. 0 0 0 0 0 0 0 0 0 0 0 0 32 LL 1st Latch LSBs Enable. Enables bits 9 - 16 33 LM 1st Latch MSBs Enable. Enables bits 1 - 8 34 RL' 3.4 Vrms Reference Low Input 35 RH' 3.4 Vrms Reference High Input 0 0 0 0 0 0 0 0 0 0 36 -R (TP) 0 0 0 1 1 1 1 1 0 1 1 1 1 0 0 1 1 1 0 1 1 1 1 1 0 0 1 0 1 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 1 0 1 0 1 1 0 1 1 0 1 0 0 11 0 1 0 0 0 0 0 1 01 0 1 1 1 0 0 1 01 0 0 0 0 1 0 1 0 01 1 0 1 0 1 0 0 1 0 1 0 0 0 0 0 1 0 1 0 1 1 1 0 0 1 01 0 0 0 0 0 1 0 1 0 01 1 0 1 0 1 0 0 1 0 1 0 0 0 0 0 1 1 0 0 1 1 1 0 0 1 0 1 0 0 0 0 1 0 0 0 1 0 1 0 1 37 EN 38 BS Battle Short Input. Logic 0 overrides over temperature protection. BIT Built-In-Test Output. Logic 0 when loss of reference, loss of 15 VDC supply, case temperature of +140C, or an output over-current has been detected. Loss of reference, loss of 15 VDC supply or case temperature of +140C will disable the poweroutput stage. 40 K 0 (0000) 15 (0AAB) 30 (1555) 45 (2000) 60 (2AAB) 75 (3666) 90 (4000) No connection. Factory test point. Enable. Power stage enable input allows for digital shutdown of power stage. Gives complete control of converter to digital system. 39 DEGREES (HEX) 120 135 180 240 270 285 300 315 (E000) 330 (EAAB) 345 (F555) 359 (FFFF) Kick. Input used for reducing excessive current flow in torque receiver loads at false null. Data Device Corporation www.ddc-web.com (5555) (6000) (8000) (AAAB) (C000) (CAAB) (D555) 9 16 BIT DIGITAL WORD () (1 = MSB, 16 = LSB) 1 1 1 0 0 1 1 10 0 0 1 0 1 0 0 0 1 0 1 1 1 0 1 0 0 1 0 1 9 10 11 12 13 14 15 16 0 0 0 0 0 1 1 0 0 0 0 1 1 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 1 1 0 1 0 10 0 1 1 0 1 1 0 1 0 0 1 0 1 0 0 0 0 0 1 1 0 0 1 1 1 0 0 1 0 1 0 0 0 0 1 0 1 0 0 1 1 0 1 1 1 0 1 1 0 1 0 0 1 0 1 1 1 0 1 1 1 DSC-10510 L-05/04-0 ORDERING INFORMATION DSC-10510-XXXX Supplemental Process Requirements: S = Pre-Cap Source Inspection L = Pull Test Q = Pull Test and Pre-Cap Inspection Blank = None of the Above Accuracy: 3 = 4 minutes (No Load) + 1.6 minutes at full Load (7VA Inductive) 4 = 2 minutes (No Load) + 1.6 minutes at full Load (7VA Inductive) Process Requirements: 0 = Standard DDC Processing, no Burn-In (See table below.) 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 table below.) 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 *Standard DDC Processing with burn-in and full temperature test--see table below. For DSC-10510 use optional Power Transformer, DDC P/N 42359 (See Figure 2) For S2 Grounded Applications, use Transformer DDC P/N 42929. STANDARD DDC PROCESSING FOR HYBRID AND MONOLITHIC HERMETIC PRODUCTS MIL-STD-883 TEST METHOD(S) CONDITION(S) INSPECTION 2009, 2010, 2017, and 2032 -- SEAL 1014 A and C TEMPERATURE CYCLE 1010 C CONSTANT ACCELERATION 2001 3000g BURN-IN 1015 (note 1), 1030 (note 2) TABLE 1 Notes: 1. For Process Requirement "B*" (refer to ordering information), devices may be non-compliant with MILSTD-883, Test Method 1015, Paragraph 3.2. Contact factory for details. 2. When applicable. Data Device Corporation www.ddc-web.com 10 DSC-10510 L-05/04-0 NOTES Data Device Corporation www.ddc-web.com 11 DSC-10510 L-05/04-0 NOTES Data Device Corporation www.ddc-web.com 12 DSC-10510 L-05/04-0 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. Please visit our web site at www.ddc-web.com for the latest information. 105 Wilbur Place, Bohemia, New York 11716-2482 For Technical Support - 1-800-DDC-5757 ext. 7771 Headquarters, N.Y., U.S.A. - Tel: (631) 567-5600, Fax: (631) 567-7358 Southeast, U.S.A. - Tel: (703) 450-7900, Fax: (703) 450-6610 West Coast, U.S.A. - Tel: (714) 895-9777, Fax: (714) 895-4988 United Kingdom - Tel: +44-(0)1635-811140, Fax: +44-(0)1635-32264 Ireland - Tel: +353-21-341065, Fax: +353-21-341568 France - Tel: +33-(0)1-41-16-3424, Fax: +33-(0)1-41-16-3425 Germany - Tel: +49-(0)8141-349-087, Fax: +49-(0)8141-349-089 Japan - Tel: +81-(0)3-3814-7688, Fax: +81-(0)3-3814-7689 World Wide Web - http://www.ddc-web.com RM (R) I FI REG U ST ERED DATA DEVICE CORPORATION REGISTERED TO ISO 9001 FILE NO. A5976 L-05/04-0 13 PRINTED IN THE U.S.A.