TCXO Specification Part No. + Packaging: LFTCXO070028Cutt Description The IQXT-260-6 employs an analogue ASIC for the oscillator and a high-order temperature compensation circuit in a 2.5 x 2.0mm size package. Model IQXT-260-6 Model Issue number 1 Frequency Parameters Frequency 26.0MHz Frequency Tolerance Tolerance Condition Frequency Stability 1.00ppm @ 25C 2C 0.50ppm Operating Temperature Range -40.00 to 85.00C Ageing: 1ppm max over 1yr @ 25C 1.5ppm max over 2yrs @ 25C 2.5ppm max over 5yrs @ 25C 5ppm max over 10yrs @ 25C Frequency Stability: TA varied over -30 to 85C, measurement referenced to frequency observed with Fref=(Fmax+Fmin)/2, Vs=2.8V and load=10k//10pF: 0.5ppm max Frequency Stability: TA varied over -40 to -30C, measurement referenced to frequency observed with Fref=(Fmax+Fmin)/2, Vs=2.8V and load=10k//10pF: 3ppm max Frequency Slope (minimum of one frequency reading every 2C): -20 to 65C: 0.05ppm/C max -30 to 85C: 0.1ppm/C max -40 to -30C: 0.35ppm/C max Static Temperature Hysteresis (frequency change after reciprocal temperature ramped over the operating range frequency measured before and after @ 25C): 0.6ppm max Supply Voltage Variation (5% change @ 25C): 0.1ppm max Load Variation (5% change @ 25C): 0.1ppm max Reflow Variation (after two consecutive reflows as per profile shown and 1hr recovery @ 25C): 1ppm max Root Allan Variance (Tau=1sec): 0.3ppb max G Sensitivity (within 30Hz to 1500Hz): 2ppb/G 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. Outline (mm) Pb-Free Reflow Electrical Parameters 2.8V nominal Supply Voltage Current Draw 1.50mA Supply Voltage Range: 1.7V min to 3.3V max Supply Current (@ TA=25C, Vs max and load=10k//10pF): 1.5mA max Note: Nominal supply voltage applies for all measurements unless otherwise stated. Sales Office Contact Details: UK: +44 (0)1460 270200 France: 0800 901 383 Germany: 0800 1808 443 USA: +1.760.318.2824 Printed on 26 May 16 23:14 using Part Data Sheet V1.00014 Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com Page 1 of 2 TCXO Specification Part No. + Packaging: LFTCXO070028Cutt Output Details Clipped Sine Output Compatability Drive Capability 10k//10pF 10% Output Voltage Level (@ TA=25C, Vs min and load=10k//10pF): 0.8V pk-pk min Start Up Time (amplitude within 90% of specified output level): 2ms max Start Up Time (frequency within 0.5ppm of steady state frequency): 2ms max Output: DC coupled Note: AC-coupled output requires an external capacitor, 1nF recommended. Noise Parameters Phase Noise @ 25C (typ): -62dBc/Hz @ 1Hz -91dBc/Hz @ 10Hz -115dBc/Hz @ 100Hz -136dBc/Hz @ 1kHz -150dBc/Hz @ 10kHz -152dBc/Hz @ 100kHz Harmonics: -8dBc max Environmental Parameters Storage Temperature Range: -40 to 85C Shock: MIL-STD-202 M213: Half sine wave acceleration of 3000G peak amplitude, duration 0.3ms, velocity 12.3ft/s. Vibration: JESD22-B103-B: 10G peak acceleration for 20mins, 12 cycles in each of the 3 orientations, tested from 10-2000Hz. Moisture Resistance: MIL-STD-202 M106g: 1000hrs @ 85C, 85% RH, biased. Thermal Cycling: JESD22 Method JA-104C: 1000 temperature cycles, where each cycle consists of a 25mins soak time @ -40C followed by a 25mins soak time @ 85C, with a 60secs maximum transition time between temperatures, air to air transition. Note: Frequency shift 1ppm after environmental conditions. Manufacturing Details Maximum Process Temperature: 260C (40secs max) Compliance RoHS Status (2011/65/EU) REACh Status MSL Rating (JDEC-STD-033): Compliant Compliant Not Applicable Packaging Details Pack Style: Cutt Pack Size: 100 In tape, cut from a reel Alternative packing option available Sales Office Contact Details: UK: +44 (0)1460 270200 France: 0800 901 383 Germany: 0800 1808 443 USA: +1.760.318.2824 Printed on 26 May 16 23:14 using Part Data Sheet V1.00014 Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com Page 2 of 2