E2747/E2747LF STRATUM 3 TCXO (-20 to 70°C) ISSUE 4 ; 13 JUNE 2005 ■ Solderability: MIL-STD-202, Method 208, Category 3 Nominal Frequency, Fo ■ Resistance to Soldering Heat: 260°C / 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. ■ 12.8MHz Supply Voltage ■ 3.3V ±5% Input Current ■ < 4mA 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). 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) Holdover Stability [±(Fmax-Fmin)/2Fo] ■ Temperature, –20 to 70°C: <±0.28ppm ■ Temperature, –20 to 70°C, inclusive of Supply Voltage, 3.3V±5% and Ageing, 24 hours: <±0.32ppm Free-Run Accuracy, incl. ∆ 2747 YW Outline in mm 5.0±0.15 Calibration@25°C, Temperature –20 to 70°C, Supply Voltage 3.3V±5% Load 15pF±5%, Reflow Soldering and Ageing 20 years: < ±4.6ppm ref. to Nominal Frequency Phase Noise 100Hz < -115dBc/Hz ■ 1kHz < -127dBc/Hz ■ 10kHz < -137dBc/Hz ■ > 100kHz < -143dBc/Hz 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 7.0±0.15 2.0 Max < -90dBc/Hz 0.80 10Hz ■ ■ Tri-State In Tri-state mode, the output stage is disabled but the oscillator and compensation circuit are still active (current consumption < 1mA) 9 5 4 6 7 8 3 21 0.6 2.54 Pad 8 < 0.2Vs: Output in Tri-state mode ■ 1.27 1.27 1.0 Pad 8 open circuit or > 0.6Vs: Output Enabled ■ 0.8 ■ 1.00 SEMTECH APPROVED PRODUCTS ■ Note: Production parts will be marked in this format. Sample marking may vary CMAC xx 10 Environmental Specification ■ Storage Temperature Range: -55 to 125°C ■ 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 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 Lead Free Reflow Soldering Profile * 300 Time above 217°C: 60 to 150 secs Time 25°C to Peak Temp: 480 sec max Peak Temp +0 260°C -5 °C 20 to 40 sec o Co 200 o ld ax 3° C/ se c cm se C/ 6° 100 n, w m ax 150°C to 200°C 60 to 180 seconds 50 Tin / Lead Reflow Soldering Profile * 300 Time above 183°C: 60 to 150 secs Time 25°C to Peak Temp: 360 sec max Peak Temp +0 240°C -5 °C 10 to 30 sec o Co 200 SEMTECH APPROVED PRODUCTS ax 3° C/ se c cm se C/ 6° m ax n, w 100 o ld 100°C to 150°C 60 to 120 seconds 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