TCXO Specification Part No. + Packaging: LFTCXO070163Cutt Description The IQXT-270-6 temperature compensated crystal oscillator (TCXO) employs an analogue ASIC for the oscillator and a high order temperature compensation circuit in a 2.0 x 1.6mm size package. Model IQXT-270-6 Model Issue number 1 Frequency Parameters Frequency 26.0MHz Frequency Tolerance 1.00ppm Frequency Stability 0.50ppm Operating Temperature Range -30.00 to 85.00C Ageing 1ppm max per year at 25C Frequency Tolerance: Offset from nominal frequency measured at 25C 2C. Reflow Shift (two consecutive reflows as per profile after 1 hour relaxation at 25C): 1ppm max Outline (mm) Frequency Stability: Referenced to the midpoint between minimum and maximum frequency value over the specified temperature range (note 1). Frequency Slope (minimum of one frequency reading every 2C, over -20 to 70C - note 1): 0.05ppm/C max Frequency Slope (minimum of one frequency reading every 2C, over -30C to -20C and 70C to 85C - note 1): 0.1ppm/C max Static Temperature Hysteresis (frequency change after reciprocal temperature ramped over the operating range, frequency measured before and after at 25C): 0.6ppm max Supply Voltage Variation (5% change at 25C): 0.1ppm max Load Variation (10% change at 25C - note 2): 0.2ppm max Electrical Parameters 1.8V 5% Supply Voltage Current Draw 1.50mA Pb-Free Reflow Supply Current (at Vs max - note 2): 1.5mA max Output Details Output Compatability Clipped Sine Drive Capability 10k//10pF 10% Output Voltage Level (at Vs min - note 2): 0.8V pk-pk min Output: DC coupled (note 3) Noise Parameters Phase Noise at 25C (typical): -62dBc/Hz 1Hz -90dBc/Hz 10Hz -112dBc/Hz 100Hz -132dBc/Hz 1kHz -145dBc/Hz 10kHz -147dBc/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 26 May 16 17:46 using Part Data Sheet V1.00014 Page 1 of 2TCXO Specification Part No. + Packaging: LFTCXO070163Cutt Environmental Parameters Shock: MIL-STD-202 M213 (note 4): Half sine-wave acceleration of 3000G peak amplitude, duration 0.3ms, velocity 12.3ft/s. Moisture Resistance: MIL-STD-202 M106g (note 4): 1000 hours at 85C, 85% relative humidity. Biased. Thermal Cycling: JESD22 Method JA-104C (note 4): 1000 temperature cycles, where each cycle consists of a 25 minutes soak time at -40C followed by a 25 minute soak time at 85C, with a 60 second maximum transition time between temperatures. Air to air transition. Vibration: JESD22-B103-B (also see note 4): 10G peak acceleration for 20 minutes 12 cycles in each of the 3 orientations, swept from 10-2000Hz. Storage Temperature Range: -40 to 85C Manufacturing Details Maximum Process Temperature: 260C (40secs max) Note 1: Parts should be shielded from drafts causing unexpected thermal gradients. Temperature changes due to ambient air currents can lead to short term frequency drift. Note 2: Specified for the load stated in Output Details above, at 25C. Note 3: External AC coupling capacitor required 1nF or greater recommended. Note 4: Frequency shift of 1ppm max after environmental conditions. 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 17:46 using Part Data Sheet V1.00014 Page 2 of 2