TCXO Specification Part No. + Packaging: LFTCXO070180Cutt Description Outline (mm) The IQXT-275-1 employs an analogue IC for the oscillator and temperature compensation. The crystal is surface mounted on top of the ceramic IC carrier. The segregation of the crystal from the oscillator further improves the reliability of the product. Model IQXT-275-1 Model Issue number 1 Frequency Parameters Frequency 19.20MHz Frequency Tolerance 1.00ppm Tolerance Condition 25C 2C Frequency Stability 0.50ppm Operating Temperature Range -30.00 to 85.00C Ageing 1ppm max over 1yr 25C Frequency Stability: TA varied over operating temperature range, measurement referenced to frequency observed with Fref=(Fmax+Fmin)/2, Vs=1.8V and load=10k//10pF. Frequency Slope (minimum of one frequency reading every 2C): -10C to 60C: 0.05ppm/C max -30C to 85C: 0.1ppm/C max Small Thermal Cycle Frequency Slope (measured at 0.5C intervals over any 5C heating and 5C cooling cycle, at a minimum rate of 1C/minute within the operating temperature range): 50ppb/C max (Note: Discard the first 0.5C interval of each heating and cooling cycle.) Small Thermal Cycle Hysteresis (difference in frequency measurements over any 5C heating and 5C cooling cycle, at a minimum rate of 1C/minute within the operating temperature range): 50ppb pk-pk max Supply Voltage Variation (5% change 25C): 0.2ppm max Load Variation (10% change 25C): 0.2ppm max Reflow Variation (after two consecutive reflows as per profile Pb-Free Reflow shown and 1hr recovery 25C): 1ppm max Note: Parts should be shielded from drafts causing unexpected thermal gradients. Temperature changes due to ambient air currents can lead to short term frequency drift. Electrical Parameters 1.8V 5% Supply Voltage Current Draw 2.00mA Supply Current ( TA=25C, Vs max and load=10k//10pF): 2mA max Output Details Output Compatability Clipped Sine Drive Capability 10k//10pF 10% Output Voltage Level ( TA=25C, Vs min and load=10k//10pF): 0.8V pk-pk min Output: DC coupled Note: AC-coupled output requires an external capacitor, 1nF recommended. Sales Office Contact Details: UK: +44 (0)1460 270200 France: 0800 901 383 Email: info iqdfrequencyproducts.com Germany: 0800 1808 443 USA: +1.760.318.2824 Web: www.iqdfrequencyproducts.com Printed on 26 May 16 23:33 using Part Data Sheet V1.00014 Page 1 of 2TCXO Specification Part No. + Packaging: LFTCXO070180Cutt Noise Parameters Phase Noise 25C (typ): -65dBc/Hz 1Hz -93dBc/Hz 10Hz -117dBc/Hz 100Hz -137dBc/Hz 1kHz -149dBc/Hz 10kHz -151dBc/Hz 100kHz Phase Noise 25C (max): -57dBc/Hz 1Hz -86dBc/Hz 10Hz -111dBc/Hz 100Hz -133dBc/Hz 1kHz -144dBc/Hz 10kHz -148dBc/Hz 100kHz Environmental Parameters Storage Temperature Range: -40 to 85C Mechanical Shock: Half sine-wave acceleration of 100G peak amplitude for 11ms duration, 3 time in 3 mutually perpendicular planes. Vibration: 10G rms from 30Hz to 1500Hz random for 4hrs in 3 mutually perpendicular planes, 12hrs total. Thermal Shock: Exposed -40C for 30mins then 85C for 30mins for a period of 5 days. Humidity: After 48hrs 85C 2C, 85% RH non-condensing. Manufacturing Details Maximum Process Temperature: 260C (40secs max) Compliance RoHS Status (2011/65/EU) Compliant REACh Status Compliant MSL Rating (JDEC-STD-033): Not Applicable Packaging Details Pack Style: Cutt In tape, cut from a reel Pack Size: 100 Alternative packing option available Sales Office Contact Details: UK: +44 (0)1460 270200 France: 0800 901 383 Email: info iqdfrequencyproducts.com Germany: 0800 1808 443 USA: +1.760.318.2824 Web: www.iqdfrequencyproducts.com Printed on 26 May 16 23:34 using Part Data Sheet V1.00014 Page 2 of 2