HC49/4HSMX CRYSTALS ISSUE 17; 1 NOVEMBER 2010 - RoHS 2002/95/EC Outline (mm) Description Industry standard low cost SMD crystal 11.40.2 SMD version of the HC49/4H Resistance welded, hermetically sealed in an inert atmosphere, glass to metal seals on leads. Lead wires are mounted onto a plastic former to create a gull wing mount Low proile versions available please contact our sales ofices for details 4.3 max* 0.7 13.4 max 4.4 Stock parts listed at the beginning of this chapter General Speciications 3.8 max 10.3 max 0.6 Solder Pad Layout 15.0 Drive Level: 500W max Ageing: 5ppm typ per year at 25C Shunt Capacitance (C0): 7pF max 2.0 4.9 max Load Capacitance (CL): 10pF to 75pF or Series 4.0 * Lower Profile Options HC49/3.5H 3.7mm max HC49/3H 3.1mm max HC49/2.5H 2.7mm max Standard Frequency Tolerances and Stabilities 30ppm, 50ppm, 100ppm Operating Temperature Ranges 0 to 50C -10 to 60C -20 to 70C -30 to 80C -40 to 85C -55 to 105C Storage Temperature Range -55 to 125C Environmental Shock: 981m/s2, 6ms, 3 times in each of 3 mutually perpendicular planes Vibration: 10Hz-60Hz, 0.75mm amplitude, 60Hz-500Hz, 98.1m/s2, 30mins in 3 mutually perpendicular planes Packaging Loose in bulk pack, 100pcs per bag Tape and reel in accordance with EIA-481-D, 1kpcs per reel (please see pages 372 & 373) Ordering Information (*minimum required) Frequency* Model* Frequency Tolerance (@25C)* Frequency Stability (over operating temperature range)* Operating Temperature Range* Load Capacitance* Overtone* Example 10.00MHz HC49/4HSMX 50/50/-40 to 85C/10 FUND Registration No. FS566088 IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom +44 (0)1460 270200; Web: www.iqdfrequencyproducts.com Americas - California, +1 (0)650 798 5047; Asia Paciic - Taiwan, +886 (0)2 8758 2283 Electrical Speciications - maximum limiting values Frequency Range Frequency Tolerance @25C 2C 3.2 to <4.0MHz 10ppm to 100ppm Operating Temperature Range Frequency Stability Available Over Operating Temperature Range Minimum Maximum 0 to 50C 15ppm 100ppm - 10 to 60C 20ppm ESR Max 300 Vibration Mode Fundamental AT cut - 20 to70C 4.0 to <5.5MHz - 30 to 80C 25ppm - 40 to 85C 30ppm - 55 to 105C 100ppm 500ppm 0 to 50C 15ppm 100ppm - 10 to 60C 20ppm 130 - 20 to70C 5.5 to <8.0MHz - 30 to 80C 25ppm - 40 to 85C 30ppm - 55 to 105C 100ppm 500ppm 0 to 50C 15ppm 100ppm - 10 to 60C 20ppm 60 - 20 to70C - 30 to 80C 8.0 to <40.0MHz 25ppm - 40 to 85C 30ppm - 55 to 105C 100ppm 500ppm 0 to 50C 15ppm 100ppm - 10 to 60C 20ppm 40 - 20 to70C - 30 to 80C 27.0 to 50.0MHz 26.0 to 100.0MHz Inclusive with Frequency Stability 10ppm to 100ppm 25ppm - 40 to 85C 30ppm - 55 to 105C 100ppm 500ppm 50ppm 100ppm 0 to 50C - 10 to 60C 70ppm - 20 to70C 100ppm 0 to 50C 15ppm - 10 to 60C 20ppm 100ppm Fundamental BT cut 100 3rd Overtone AT cut - 20 to70C - 30 to 80C 25ppm - 40 to 85C 30ppm - 55 to 105C 100ppm 500ppm Note: For other frequency / specification combinations, please contact our sales offices Registration No. FS566088 IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom +44 (0)1460 270200; Web: www.iqdfrequencyproducts.com Americas - California, +1 (0)650 798 5047; Asia Paciic - Taiwan, +886 (0)2 8758 2283 IQD Part Numbers for HC49/4HSMX (Quartz Crystals SMD) Package: 11.4 x 3.8mm... Page 1 of 1 IQD Frequency Products Ltd Main Automotive Statek Part Numbers for IQD HC49/4HSMX Frequency Specification Part Number Packaging Bulk Reel 3.57955MHz 30/50/-10 to 60C/16 FUND LFXTAL003058 3.6864MHz 30/50/-10 to 60C/16 FUND LFXTAL003260 4MHz 30/50/-10 to 60C/16 FUND LFXTAL003071 4MHz 30/50/-10 to 60C/30 FUND LFXTAL011300 4.9152MHz 30/50/-10 to 60C/16 FUND LFXTAL018153 4.9152MHz 30/50/-20 to 70C/18 FUND LFXTAL028392 5MHz 30/50/-10 to 60C/30 FUND LFXTAL012312 6MHz 30/50/-10 to 60C/30 FUND LFXTAL016788 6MHz 20/50/-10 to 60C/16 FUND LFXTAL026900 7.3728MHz 30/50/-10 to 60C/16 FUND LFXTAL003334 7.3728MHz 30/50/-10 to 60C/30 FUND LFXTAL010689 8MHz 30/50/-10 to 60C/16 FUND LFXTAL003151 8MHz 30/50/-10 to 60C/30 FUND LFXTAL011301 8MHz 30/50/-20 to 70C/18 FUND LFXTAL020423 8.192MHz 20/50/-10 to 60C/16 FUND LFXTAL026902 9.8304MHz 30/50/-10 to 60C/30 FUND LFXTAL017048 10MHz 30/50/-10 to 60C/30 FUND LFXTAL017145 10MHz 30/50/-20 to 70C/18 FUND LFXTAL021675 10MHz 30/50/-10 to 60C/16 FUND LFXTAL003166 11.0592MHz 30/50/-10 to 60C/16 FUND LFXTAL003519 12MHz 30/50/-10 to 60C/16 FUND LFXTAL003210 12MHz 30/50/-10 to 60C/30 FUND LFXTAL010043 14.7456MHz 20/50/-10 to 60C/16 FUND LFXTAL026908 14.7456MHz 30/50/-10 to 60C/30 FUND LFXTAL012313 16MHz 30/50/-10 to 60C/16 FUND LFXTAL003237 18.432MHz 20/50/-10 to 60C/16 FUND LFXTAL026911 20MHz 30/50/-10 to 60C/16 FUND LFXTAL003181 20MHz 30/50/-10 to 60C/30 FUND LFXTAL017146 20MHz 30/50/-20 to 70C/18 FUND LFXTAL020131 24MHz 30/50/-10 to 60C/16 FUND LFXTAL012504 24MHz 30/50/-20 to 70C/18 FUND LFXTAL026548 25MHz 30/50/-10 to 60C/16 FUND LFXTAL010595 25MHz 30/50/-20 to 70C/18 FUND LFXTAL033342 (c) IQD Frequency Products Ltd 2011 Registered in England no. 06478545 T: +44 (0) 1460 270 200 Registered Office: Station Road, Crewkerne, Somerset, TA18 8AR, UK VAT Reg. no. GB932 4502 45 PN List Flaydemouse Website Design, Yeovil, Somerset http://www.iqdfrequencyproducts.com/products/partnumbers/40/ 6-12-2011 QUARTZ CRYSTALS SPECIFYING QUARTZ CRYSTALS Quartz crystals are the most technically simple product IQD offer, the package contains only a piece of quartz wafer, all the supporting circuitry needed to create the oscillation must be provided by the customer's circuit. The quartz wafer inside is cut and shaped to give a resonant frequency within the speciied limits. IQD's quartz crystal part numbers all contain the code XTAL. The electrical parameters are given on the speciication to facilitate the correct circuit design. Further guidance can be found in the Application Notes chapter of this book. Our Application Support team can also provide assistance if required; please contact one of our sales ofices for this support. The limits given in the following speciications are indicative of the standard crystal design, in the event that a speciication is needed which is outside the standard crystal designs offered please contact our Sales team. A typical quartz crystal speciication reads like this: 10.0MHz 12SMX-B 50/50/-20 to 70C/20/ FUND TE The data in the example above is translated in the following order Frequency Model & Variant Frequency Tolerance @ 25C 3 lead base Fitted insulator Top wire Cropped leads Insulating sleeve Formed leads Frequency Tolerance The cost of manufacture depends partly on the accuracy required at reference temperature (which in the case of the AT-cut crystal, is usually 25C). Where high initial accuracy is important the additional manufacturing cost should be weighed against the cost of including a frequency trimming facility within the oscillator circuit design. Frequency Stability Frequency stability is normally speciied as a frequency variation over a deined operating temperature range with respect to the frequency at reference temperature. The temperature ranges are deined for each crystal in the relevant data sheet. However the majority of crystals will continue to operate quite satisfactorily outside the temperature range for which they are speciied, but with a possible degradation in the value of frequency stability. Under normal conditions this will not damage the crystal. A crystal designed for operation over a restricted operating temperature range, (such as from 0 to 50C) generally has a better frequency stability over that range than one designed for operation over a wide operating temperature range. Therefore it is important not to over specify the temperature range, as doing so will result in inferior performance for the same or greater cost; or greater cost for the same or inferior performance. Frequency Stability (over operating temperature range) Operating Temperature Range Load Capacitance Overtone Additional Text Code Frequency Frequency is normally speciied in kilohertz (kHz) up to 999.999kHz and in megahertz (MHz) from 1.0MHz. All our computer-generated transaction documents follow this standard convention automatically. The frequency should be described to seven signiicant igures. If seven signiicant igures are not used, we assume that any igure that might follow those given may be taken as zero. Thus a frequency given as 16.6MHz will be taken as 16.60, not 16.66667. Some speciiers extend the use of kHz to all crystals operating in fundamental mode, reserving MHz for overtones, this method is not used by IQD. To minimise the possibility of misunderstanding it is best to use the standard method and specify fundamental or overtone mode separately. Please contact a sales ofice for details of developed frequencies. Model Before manufacture of the crystal can start, the model must be deined. Each model covers a frequency range which is deined in the relevant speciication. The model information should also cover any mechanical variants required such as a top wire or cropped leads. For leaded versions, the following variants for example are www.iqdfrequencyproducts.com available for most crystals, either singly or in some cases, in combination: 20 Generalised frequency vs temperature curves for the AT-cut crystal types are illustrated below. These indicate that, without compensation, a crystal speciied for operation over a wide frequency range will probably have an inferior performance over a narrower range than one whose design was optimised for the narrower range. The angle of cut of the quartz blank from its quartz stone determines which curve will be followed; the chosen angle being subject to its own tolerance. Thus, since manufacturing cost is tolerance-dependent it is wise not to specify a wider operating temperature range than is actually needed unless some sacriice of stability, or an increase in cost, can be accepted. Typical Frequency vs Temperature Curves for various angles of AT-cut crystals Additional Text Code If the product is non-standard, the letter `T' and/or `E' will appear at the end of the product speciication. This refers to additional text on the quotation/sales order to identify the special requirements. +25 f/f 0 (ppm) These are given directly after the part number for example LFXTAL012345Bulk and LFXTAL012345Reel are the same part packaged either loose in bulk pack or on tape and reel. Tray packaging is available as an option for some products outlined in the individual data sheets. 0 Unless individual data sheets state Bulk packaging, surface mount versions will be Tape & Reel packed. Please note: only complete reels are sold. Sample quantities are avialable on request - 25 Bulk = Bulk packed - 50 - 20 +25 Temperature (C) +70 +100 Reel = Tape and reel packed Tray = Tray packed Outline Drawings Standard Frequency Tolerances and Stabilities 5ppm 30ppm 10ppm 50ppm 15ppm 100ppm Dimensions on the crystal outline drawings are shown only as a guide. Precise dimensions of crystal holders are available upon request. All dimensions are shown in mm and are nominal unless otherwise stated. 20ppm Marking Due to the small size of modern SMT devices many components are now not marked with any customer readable information beyond the pad 1 denominator. In these cases the marking will be production speciic data. Operating Temperature Ranges The standard operating temperature ranges for a crystal are: 0 to 50C -40 to 85C -10 to 60C -55 to 105C -20 to 70C -55 to 125C -30 to 80C Load Condition The characters `SR' are used to denote calibration of the crystal at series resonance. If it is to be calibrated at load resonance the characters represent the circuit load capacitance in pF. Overtone Order Quartz crystals resonate in speciic "modes" depending upon the frequency in question and oscillator circuit coniguration in which it is used. The main mode of operation is called "fundamental". i.e. a 10MHz crystal vibrates at a frequency of 10MHz However for high frequency use, quartz crystals can be made to operate at odd multiples of its fundamental frequency. These multiples are termed "overtones" and are denoted by their multiple as: 3rd , 5th, 7th, 9th. e.g. a 10MHz crystal can be made to operate at its 3rd overtone which is approximately 3 times its fundamental frequency. If an overtone mode crystal is chosen then the circuit design must include the relevant components required to suppress the fundamental mode of operation to ensure oscillation at the intended frequency. Where there is a cross-over band in the modes available, the mode required must be speciied when ordering. For general use and simplicity of circuit design we recommend that fundamental mode be chosen where possible. 21 www.iqdfrequencyproducts.com QUARTZ CRYSTALS Packaging Codes