q-tech corporation - 10150 w. jefferson boulevard, culver city 90232 - tel: 310-836-7900 - fax: 310-836-2157 - www.q-t e c h . c o m q-tech corporation specification control drawing scope scope part number applicable documents specifications and standards requirements general requirements approved manufacturer design and construction outline dimensions and terminal connections package body and lead finish active devices performance requirements maximum ratings electrical performance characteristics and limits delta limits total dose radiation limits quality assurance provisions general screening tests quality conformance inspection packaging preservation, packaging and packing notes ordering information part number table i. stability/temperature options source of supply approved manufacturer table ii. maximum ratings table iii. electrical performance characteristics figure 1. package dimensions and terminal connections qt625l xo detail specification qt625l xo detail specification (revision d, august 2008) table of contents
this document is consi dered proprietary to q-tech corporation do not copy or distribute without q-tech corporation approval 51774 a sheet 1 of 5 cage code size scale: none 10/15/08 m.dao date released by rev. d drawing no. qt 625l 10/9/08 t.villegas date checked by hybrid crysta l oscillator +3.3v , class s, detail specification for 8/8/08 e.jackson date prepared by unless otherwise specified dimensions are in inches. tolerances: 3 place decimal = .005 2 place decimal = .02 1 place decimal = .1 fractions = 1/16 angles = 2 degrees q-tech corporation 10150 w. jefferson blvd. culver city, ca. 90232-3510 specification control drawing e . jackson 8/08/08 change to microcircuit manufacturer, paragraph 3.3.3 d 7/17/07 modify paragraph 3.3.3 for clarification of microcircuit technology , sel rating c 3-19-07 clarify temperature stability definitions, table i. b 2 - 27 -07 modify tr/tf spec lim i ts to better reflect output buffer drive capability. a initial release - approved date description revision revisions
1 scope 1.1 scope. this specification establishes the detail requirements for hybrid, hermetically sealed, crystal oscillators for use in space flight missions. 1.2 part number. the part number shall be as specified in table i herein. 2 applicable documents 2.1 specifications and standards. unless otherwise specified, the following documents shall be applicable to this specification to the extent specified herein. specifications 401-0298-001 hybrid crystal oscillators, class s, general specification for 3 requirements 3.1 general requirements. the individual item requirements shall be as specified in the general specification with the exceptions, modifications, and additions specified herein. 3.2 approved manufacturer. hybrid crystal oscillators shall be supplied from the manufacturer specified in paragraph 7.1 herein. 3.3 design and construction. 3.3.1. outline dimensions and terminal connections. the outline dimensions and terminal connections shall be as shown in figure 1 herein. 3.3.2. package body and lead finish. the package body and lead finish shall be gold in accordance with mil-prf-38534. 3.3.3. active devices. the microcircuit used in this part shall use cmos technology and shall be from a wafer proven to be radiation tolerant to 100 krad (si) total ionizing dose. 3.3.3.1 cmos microcircuit usage. for frequencies below 12 mhz the output microcircuit shall be intersil corporation 54acs family, silicon on sapphire cmos technology, from a wafer proven to be radiation to l erant to 300 krad (si). for frequencies greater than or equal to 1 2 mhz , the cmos microcircuit shall be 54ac00, see dssc smd 5962-87549. this microcircuit is specified to be single event latchup free for let up to 93 mev-cm 2 /mg . for output frequencies from 12 mhz to 70 mhz, the manufacturer shall be st microele ctronics corporation; for output frequencies greater than or equal to 70 mhz , the manufacturer shall be national semiconductor corporation. 3.4 performance requirements. 3.4.1. maximum ratings. the maximum ratings shall be as specified in table ii herein. 3.4.2. electrical performance characteristics and limits. the electrical performance requirements and limits shall be in accordance with table iii herein. 3.4.3. delta limits. except for frequency aging (refer to table iii), delta limits shall be in accordance with the general specification. 3.4.4. total dose radiation limits. hybrid crystal oscillators supplied in accordance with this specification shall be capable of meeting the performance requirements after being exposed to 100 krad total dose radiation levels. this document is considered proprietary to q-tech corporation do not copy or distribute without q-tech corporation approval q-tech corporation 10150 w. jefferson blvd. culver city, ca. 90232 specification number: qt625l rev. d sheet 2 of 5
4 quality assurance provisions 4.1 general. the quality assurance provisions shall be in accordance with the general specification with the exceptions, modifications, and additions specified herein. 4.2 screening tests. the screening tests shall be in accordance with the general specification. 4.3 quality conformance inspection. quality conformance inspection sh all be in accordance with the general specification and shall be required only when specified by the purchase order. 5 packaging 5.1 preservation, packaging and packing. hybrid crystal oscillators shall be prepared for delivery in accordance with the general specification. 6 notes 6.1 notes. the notes of the general specification are applicable to this drawing. 6.2 ordering information. the procuring activity shall advise q-tech corporation at the time of request for quotation if quality conformance inspection is to be required. 6.3 part number . qt 6 25 l b m - 16.00 0 000 mhz model # supply voltage: l: + 3.3 volts temp stability - see table i screening: e: engineering model; m: flight model frequency (8 digits) 5 ppm, 0 c to + 55 c h * 25 ppm, - 20 c to + 70 c g 50 ppm, - 20 c to + 70 c f 30 ppm, - 40 c to + 85 c e 40 ppm, - 55 c to + 105 c d 50 ppm, - 55 c to + 105 c c 50 ppm, - 55 c to + 125 c b 65 ppm, - 55 c to + 125 c a temp stability option table i. stability / temperature options * * frequency/temperature stability (tolerance) shall be referenced to the specified nominal output frequency, except for temp code h, in which case it is with reference to room temperature (t = 25 2 c). for temp code h, room temperature tolerance shall be 10 ppm. 7 source of supply 7.1 approved manufacturer. q-tech corporation 10150 w. jefferson blvd. culver city, ca. 90232 u.s.a. this document is considered proprietary to q-tech corporation do not copy or distribute without q-tech corporation approval q-tech corporation 10150 w. jefferson blvd. culver city, ca. 90232 specification number: qt625l rev. d sheet 3 of 5
oc/w 50 q jc package thermal resistance oc/seconds 250/10 lead solder temperature/time oc 150 -65 tstg storage temperature oc 125 -55 t c operating temperature volts 7 0 v cc supply voltage units max min symbol parameter table ii. maximum ratings ms 10 startup time ppm 10 70 c 3 c frequency aging (after 1 year) ppm 1.5 70 c 3 c frequency aging (after 30 days) % 60/40 or better duty cycle 6/ ns 2.5 > 125 mhz 6/ ns 3 70 mhz - 125 mhz 6/ ns 4 below 70 mhz output frequency: rise / fall time @ worst case, vcc = 3.0, t = 125 c n/a squarewave output waveform vdc v cc x 0.9 output voltage - logic "1" 5/ vdc v cc x 0.1 output voltage - logic "0" 6/ - cmos load ma 30 100 mhz - 150 mhz ma 20 60 mhz - 99.99 mhz ma 15 12 mhz - 59.99 mhz ma 7 less than 12 mhz measured without load at 3.63 vdc output frequency: input current vdc 3.6 3.3 3 supply voltage 1/, 4/ see table i frequency/temperature stability mhz 150 2.5 frequency range units max. nom. min. notes limits test conditions 2/, 3/ electrical parameter table ill. electrical performance characteristics notes 1. the limit for frequency/temperature stability (tolerance) shall be referenced to the specified nominal output frequency, except for temp code h as noted above. 2. unless otherwise specified, the limits are over the full operating temperature range and under specified load conditions. 3. unless otherwise specified, all measurements are in accordance with mil-prf-55310. 4. up to 30 days after shipment. 5. voltage values are with respect to network ground terminal. 6. a standard cmos load of 10 kohm || 15 pf shall be used , e xcept for frequencies greater than 125 mhz, where the load shall be 5 pf. see mil-prf-55310/26 for cmos waveform measurement definitions. this document is considered proprietary to q-tech corporation do not copy or distribute without q-tech corporation approval q-tech corporation 10150 w. jefferson blvd. culver city, ca. 90232 specification number: qt625l rev. d sheet 4 of 5
.495 min. . 2 places .625 .005 2x .450 2x .0875 20 x .015 .003 18x .050 non - accumulative 10 9 8 7 6 5 4 3 2 1 11 12 13 14 15 16 17 18 19 20 .625 .005 view from bottom q - tech usa part number frequency lot date code serial number 20x .060 .045 20 x .010 .002 .150 max. esd symbol for pin no. 1 view from top notes: 1. dimensions are in inches. 2. lead numbers are for reference only and are not marked on the unit. 3. all pins with function nc may not be connected as external tie or connections, except they may be tied to ground. n/c 20 gnd/case 10 n/c 19 n/c 9 n/c 18 n/c 8 n/c 17 n/c 7 n/c 16 n/c 6 gnd/case * 15 n/c 5 n/c 14 n/c 4 v cc 13 n/c 3 gnd/case * 12 n/c 2 output 11 n/c 1 connection terminal no. connection terminal no. terminal connections * additional optional ground connections are included only when microcircuit used is 54ac00 (see paragraph 3.3.3.1), and may be connected to circuit ground plane for minimum overshoot/ringing when driving capaci ti ve loads. figure 1. package dimensions and terminal connections this document is considered proprietary to q-tech corporation do not copy or distribute without q-tech corporation approval q-tech corporation 10150 w. jefferson blvd. culver city, ca. 90232 specification number: qt625l rev. d sheet 5 of 5
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