TCXO Specification Part No. + Packaging: LFTCXO070898Cutt Customer Part: Description The IQXT-260-27 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-260-27 Model Issue number 1 Frequency Parameters Frequency 38.40MHz Frequency Tolerance 1.00ppm Tolerance Condition 25C 2C Frequency Stability 0.50ppm Operating Temperature Range -40.00 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=3.3V and load=10k//10pF. Supply Voltage Variation (5% change 25C): 0.1ppm max Outline (mm) Load Variation (10% change 25C): 0.2ppm max Reflow Variation (after two consecutive reflows as per profile 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 3.3V 5% Supply Voltage Current Draw 2.000mA Supply Current ( TA=25C, Vs max and load=10k//10pF): 2mA max Output Details Output Compatibility Clipped Sine Drive Capability 10k//10pF 10% Pb-Free Reflow 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): 0.5ms 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 (typ 25C): -60dBc/Hz 1Hz -88dBc/Hz 10Hz -109dBc/Hz 100Hz -132dBc/Hz 1kHz -149dBc/Hz 10kHz -150dBc/Hz 100kHz 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 10 Mar 21 1:48 using Part Data Sheet V1.0018 Page 1 of 2TCXO Specification Part No. + Packaging: LFTCXO070898Cutt Customer Part: 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) RoHS Terminations RoHS Reflow Temp 260C max for 40secs max Compliance RoHS Status (2015/863/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 10 Mar 21 1:48 using Part Data Sheet V1.0018 Page 2 of 2