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| E2747/E2747LF STRATUM 3 TCXO (-20 to 70C) ISSUE 4 ; 13 JUNE 2005 Nominal Frequency, Fo Solderability: MIL-STD-202, Method 208, Category 3 Resistance to Soldering Heat: 260C / 10s exposure Marking: Laser Marked RoHS/Soldering: Parts with the suffix `LF' on the part number are fully compliant with the European Union directive 2002/95/EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment. Note: The RoHS compliant parts are suitable for assembly using both Lead-free solders (see Lead-free Reflow soldering profile) and Tin / Lead solders (see Tin / Lead Reflow soldering profile). 12.8MHz Supply Voltage 3.3V 5% Input Current < 4mA Output Type: HCMOS Load: 15pF max VoL: <0.1 Vs VoH: >0.9 Vs Duty Cycle @ 50%: 45% to 55% Rise Time, 10% to 90%: < 9ns Fall Time, 90% to 10%: < 9ns Marking Manufacturers ID (CMAC) Manufacturing Identifier (xx) Pad 1 / Static Sensitivity Identifier () Abbreviated Part Number (2747) Oscillator's Date of Manufacture (YW) CMAC xx Note: Production parts will be marked in this format. Sample marking may vary Holdover Stability [(Fmax-Fmin)/2Fo] Temperature, -20 to 70C: <0.28ppm Temperature, -20 to 70C, inclusive of Supply Voltage, 3.3V5% and Ageing, 24 hours: <0.32ppm 2747 YW Free-Run Accuracy, incl. Outline in mm 5.00.15 Calibration@25C, Temperature -20 to 70C, Supply Voltage 3.3V5% Load 15pF5%, Reflow Soldering and Ageing 20 years: < 4.6ppm ref. to Nominal Frequency SEMTECH APPROVED PRODUCTS Phase Noise 10Hz 100Hz 1kHz 10kHz < -90dBc/Hz < -115dBc/Hz < -127dBc/Hz < -137dBc/Hz 0.80 7.00.15 2.0 Max > 100kHz < -143dBc/Hz Tri-State Pad 8 open circuit or > 0.6Vs: Output Enabled 0.8 1.0 5 4 678 3 21 0.6 10 9 1.27 1.27 Pad 8 < 0.2Vs: Output in Tri-state mode 1.00 Pad Connections 1.Do not connect 2.N/C 3.DC Coupled Output (do not connect) 4.GND 5.Output 6.N/C 7.N/C 8.Tri-state Control * 9. +Vs 10.Do not connect, or connect to GND * see text 2.54 In Tri-state mode, the output stage is disabled but the oscillator and compensation circuit are still active (current consumption < 1mA) Environmental Specification Storage Temperature Range: -55 to 125C Vibration: IEC 60068-2-6 Test Fc procedure B4, 10-60Hz 1.5mm displacement, at 98.1m/s2, 30 minutes in each of three mutually perpendicular axes at 1 octave per minute Shock: IEC 60068-2-27 Test Ea, 980m/s2 acceleration for 6ms duration, 3 shocks in each direction along three mutually perpendicular axes Fax: +44 (0)1460 72578 Fax: +1 919 941 9371 Fax: +86 755 8826 5990 Website: www.cmac.com Europe Tel: +44 (0)1460 270200 Americas Tel: +1 919 941 9333 Asia Tel: +86 755 8826 5991 Lead Free Reflow Soldering Profile * 300 Time above 217C: 60 to 150 secs Time 25C to Peak Temp: 480 sec max Peak Temp +0 260C -5 C 20 to 40 sec 200 150C to 200C m ax o Co o ld n, w 60 to 180 seconds cm se C/ 6 100 50 3 C/ se c ax Tin / Lead Reflow Soldering Profile * 300 Time above 183C: 60 to 150 secs Time 25C to Peak Temp: 360 sec max Peak Temp +0 240C -5 C 10 to 30 sec 200 100C to 150C m ax o Co o ld n, w 60 to 120 seconds cm se C/ 6 50 *Note: These profiles were used during the qualification testing of the product and therefore represent worst case conditions. They are not recommended for use by the customer in the actual assembly of these parts Europe Tel: +44 (0)1460 270200 Americas Tel: +1 919 941 9333 Asia Tel: +86 755 8826 5991 Fax: +44 (0)1460 72578 Fax: +1 919 941 9371 Fax: +86 755 8826 5990 Website: www.cmac.com SEMTECH APPROVED PRODUCTS 100 3 C/ se c ax |
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