? data device corporation 105 wilbur place bohemia, new york 11716 631-567-5600 fax: 631-567-7358 www.ddc-web.com for more information contact: technical support: 1-800-ddc-5757 ext. 7771 features ? quadrature reference output voltages for inductosyn applications ? programmable output frequency from 400 hz to 20 khz ? small 18-pin ddip ? scalable reference output ? -55c to 125c operating temperature range description the osc-15801 is a quadrature power oscillator with two outputs that are 90 out of phase. these outputs provide both the reference and quadrature signals, simultaneously, making the osc-15801 ideally suited for inductosyn applications. the oscillators outputs are pin-programmable for both frequency and amplitude. the output frequency can be programmed from 400 hz to 20 khz by simply connecting two external capacitors. the reference output voltage, 8.8 vrms at 20 khz, can be scaled down by connect - ing a single resistor. applications packaged in an 18-pin hermetic ddip, the osc-15801 operates over a temperature range of -55c to +125c. this, combined with its small size and programmable output voltage and frequency capabilities, makes it an excellent choice for use in inductosyn applications. osc-15801 synchro/r esolver/inductosyn ? reference o scillator make sure the next card you purchase has... ? 1981, 1999 data device corporation ? inductosyn is a registered trademark of farrand controls corporation all trademarks are the property of their respective owners.
2 data device corporation www.ddc-web.com osc-15801 l-8/08-0 figure 1. osc-15801 bl oc k dia gram quad oscillator - + +15 vdc gnd -15 vdc pa out 30k pa in rext cext cext ref out c1 c2 gnd ref out -90? 30k c2 inverting amp
3 data device corporation www.ddc-web.com osc-15801 l-8/08-0 t abl e 1. osc-15801 specifica tions specifications apply over temperature range and power supply range. p arameter units v alue frequency hz programmable from 400 to 20k outputs (n ote 1) pa out voltage continuous current protection ref voltage continuous current protection ref -90 voltage continuous current protection output impedance v rms ma rms v rms ma rms v rms ma rms ? 6.2 to 8.8 215 max momentary short circuit (1 sec. max.) 6.2 to 8.8 3 max momentary short circuit (5 sec. max.) (note 2) 3 max momentary short circuit (5 sec. max.) 0.87 (typ) power supp lies voltage current max voltage without damage vdc ma vdc 15 5% 15 max plus current load 18 tempera ture r ange operating -10x -30x storage jc (junction to case) c c c c/w -55 to +125 0 to +70 -65 to +150 8 physical chara cteristics size package type weight (max) in (mm) oz (gm) 1.0 x 0.8 x 0.2 (25.45 x 20.32 x 4.83) 18-pin ddip 0.4 (11.3) notes: 1. output voltage tracks 15 v supply levels. 2. clipped sine wave for demodulator drive only, 10 vrms typ.
4 data device corporation www.ddc-web.com osc-15801 l-8/08-0 osc-15801 opera tion programmable frequency output the output frequency of the osc-15801 is programmable from 20 khz down to 400 hz. the frequency is programmed using two external equal value capacitors (see figure 2). the value of the capacitors (c ext ) is calculated as follows: c ext = (2,400,000/f) - 100 where: c ext is capacitance in picofarads, f is frequency in hertz. typical programmable reference voltage output (r ext = 0) the pa out (ref), pin 13, provides from 7.0 to 7.3 vrms, depending on the operating frequency. table 2 lists the pa out voltages at the (programmed) operating frequency. these voltages are typical voltage values obtained at these frequen - cies, when r ext = 0 ohms (pin 7 jumped to pin 3). osc-15801 +15 vr l -15 v pa out (ref) (rh 1 ) 1,3 pa in rext cext cext ref out 2 c1 c2 ref out -90? (rh 2 ) 1,3 13 15 16 18 11 10 3 7 6 c2 12 notes: 1. output low side is pin 16 "gnd" 2. pin 7. ref out is the unbuffered output of the oscillator 3. rh 1 = typical connection to rd converter ref hi. rh 2 = low power -90 degree phase shifted signal for use with inductosyns. figure 2. progr amming resistor a nd cap a citor connections t able 2. p a out/ frequency p a out frequency 7.3 vrms 20 khz to scale down the pa out voltage, an external resistor (r ext ) is connected between pins 3 and 7. the value of r ext is calculated as follows: r ext = 30 [(pa out/desired voltage) -1] where: r ext is in kohms, desired voltage is in vrms, pa out is dependent on frequency used. for example , to scale down pa out to 5 vrms at 10 khz, the value of r ext would be calculated as follows: r ext = 30 [(pa out/desired voltage) -1] r ext = 30 [(7.5/5) -1] r ext = 15k ? for connection to converters connect as follows: ref lo (rl) connect to pin 16 ref hi (rh) connect to pin 13 or 12. 7.1 vrms 10 khz 7.0 vrms .4 khz
5 data device corporation www.ddc-web.com osc-15801 l-8/08-0 0.190 max (4.83) 0.180 minimum (4.57) 0.018 0.002 (0.46 0.05) 8 eq. sp. @ 0.100 = 0.800 tol noncum (@ 2.54 = 20.32) 1.002 max (25.45) 0.800 max (20.32) 0.600 (15.24) 0.010 0.002 typ (0.25 0.05) 0.040 typ (1.02) 0.100 typ (2.54) 0.035 typ (0.89) top view side view 1 9 10 18 pin 1 index figure 3. osc-15801 mechanical outline t abl e 3. osc-15801 pin functions pin name function 1 nc no connection 1 notes: 1. dimensions shown are in inches (mm). 2. lead cluster shall be centralized within 0.010 (2.54) of outline dimensions. 3. pin material meets solderability requirements of mil-std-202e, method 208c. 4. pin numbers are for reference only. 2 nc no connection 1 3 pa in power amplifier inverting input 4 nc no connection 1 5 nc no connection 1 6 c1 capacitor connection (pin-programmable frequency) 7 ref out reference output 8 nc no connection 1 9 nc no connection 1 10 c2 capacitor connection (pin-programmable frequency) 11 c2 gnd capacitor connection (pin-programmable frequency) 12 ref out -90 -90 reference output signal 13 pa out power amplifier output 14 nc no connection 1 15 -15 v -15 vdc power supply voltage 16 gnd ground 17 nc no connection 1 18 +15 v +15 vdc power supply voltage notes: 1. nc = no connection to anything inside chip (open pin).
6 data device corporation www.ddc-web.com osc-15801 l-8/08-0 i nductosyn ? t ypic al connection a linear or rotary inductosyn ? consists of a slider and a scale. as the slider moves over the scale there is a low voltage electrical output proportional to the distance moved. inductosyns usually are excited by a 5 khz to 20 khz frequency. the osc-15801 is an oscillator that was designed with a high frequency output and a -90 phase shift, which is needed for inductosyn?-to-digital con - version (see f igure below). the figure below will convert each pitch to 360 of digital data. a means to track counts will be needed for multiple pitches. using an rd-19230 and a quad b zero index pulse for counting pitches is one possible solution. note that inductosyns typically have a + or - 90 degree phase shift from input to output. this requires an oscillator with a 90 degree phase shifted second ouptut to be connected to the rd converter reference so that the rd input and reference will now be in phase. ddc has two oscillators to cover the +90 or -90 phase shift needed. see the osc-15801 for -90 phase shift and the osc- 15802 for +90 phase shift. note: see ddcs synchro/resolver conversion handbook using an r/d with an inductosyn for further information. resolver to digital converter digital output dual matched inductosyn preamps inductosyn scale quadrature power oscillator shift 90 ? phase quadrature output inductosyn slider rh rl chassis ground circuit ground 2 vrms osc-15801 pa out ref out -90 i nductosyn ? -t o-digit al c onverter s ystem
7 data device corporation www.ddc-web.com osc-15801 l-8/08-0 ordering infor ma tion osc-15801-xx0x supplemental process requirements: s = pre-cap source inspection l = pull test q = pull test and pre-cap inspection k = one lot date code w = one lot date code and pre-cap source y = one lot date code and 100% pull test z = one lot date code, pre-cap source and 100% pull test blank = none of the above process requirements: 0 = standard ddc processing, no burn-in 1 = mil-prf-38534 compliant 3 2 = b 1 3 = mil-prf-38534 compliant with pind testing 3 4 = mil-prf-38534 compliant with solder dip 2,3 5 = mil-prf-38534 compliant with pind testing and solder dip 2,3 6 = b 1 with pind testing 7 = b 1 with solder dip 2 8 = b 1 with pind testing and solder dip 2 9 = standard ddc processing with solder dip, no burn-in 2 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 1. standard ddc processing with burn-in and full temperature test - see table below 2. these products contain tin-lead solder finish as applicable to solder dip requirements. 3. mil-prf-38534 product grading is designated with the following dash numbers: class h is a -11x, 13x, 14x, 15x, 41x, 43x, 44x, 45x class g is a -21x, 23x, 24x, 25x, 51x, 53x, 54x, 55x class d is a -31x, 33x, 34x, 35x, 81x, 83x, 84x, 85x notes: 1. for process requirement b* (refer to ordering information), devices may be non-compliant with mil-std-883, test method 1015, paragraph 3.2. contact factory for details. 2. when applicable. standard ddc proce ssing for hybrid and monolit h ic 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 10 1 5 , (note 1) 103 0 (note 2) table 1
8 l-8/08-0 printed in the u.s.a. 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, u.s.a. 11716-2426 for technical support - 1-800-ddc-5757 ext. 7771 headquarters, n.y., u.s. a . - tel: (631) 567-5600, fax: (631) 567-7358 united k ingdom - tel: +44-(0)1635-811140, fax: +44-(0)1635-32264 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 d a t a device corpora tion registered t o iso 9001:2000 file n o . a5976 r e g i s t e r e d f i r m ? u 8 l-8/08-0 printed in the u.s.a. 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, u.s.a. 11716-2426 for technical support - 1-800-ddc-5757 ext. 7771 headquarters, n.y., u.s. a . - tel: (631) 567-5600, fax: (631) 567-7358 united k ingdom - tel: +44-(0)1635-811140, fax: +44-(0)1635-32264 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 d a t a device corpora tion registered t o iso 9001:2000 file n o . a5976 r e g i s t e r e d f i r m ? u 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.
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