TCXO Specification Part No. + Packaging: LFTCXO070038Cutt Description Outline (mm) The IQXT-272-1 employs an analogue ASIC for the oscillator and a high order temperature compensation circuit in a 2.0 x 1.6 mm size package. The device can be placed in power-down mode through a single input pin. Model IQXT-272-1 Model Issue number 1 Frequency Parameters Frequency 26.0MHz Frequency Tolerance 1.00ppm Tolerance Condition 25C 2C Frequency Stability 0.50ppm Operating Temperature Range -40.00 to 85.00C Ageing 1ppm max per year 25C Frequency Stability: TA varied over the operating temperature range, measurement referenced to frequency observed with Fref=(Fmax+Fmin)/2, Vs=1.8V and load=10k//10pF (see note 1). Frequency Slope (minimum of 1 frequency reading every 2C, over the operating temperature range - see note 1): 0.1ppm/C max Static Temperature Hysteresis (frequency change after reciprocal temperature ramped over the operating range - frequency measured before and after 25C): 0.6ppm max Frequency Drift on Power-up: Drift Period: 0.03 to 1.0 seconds: 500ppb/s max Drift Period: 1.0 to 2.0 seconds: 40ppb/s max Drift Period: 2.0 to 3.0 seconds: 2.5ppb/s max Supply Voltage Variation (5% change 25C): 0.1ppm max Load Variation (10% change 25C - see note 2): 0.2ppm max Reflow Variation (two consecutive reflows as per the profile shown, after 1hr relaxation 25C): 1ppm max Note 1: Parts should be shielded from drafts causing unexpected thermal gradients. Temperature changes due to Pb-Free Reflow ambient air currents can lead to short term frequency drift. Electrical Parameters 1.8V 5% Supply Voltage Current Draw 2.00mA Supply Current ( Vs max - see note 2): 2mA max Temperature Sensor Output Voltage ( 25C): 0.85 to 1.05V Temperature Sensor Slope: -8.9 to -8.5 mV/C Temperature Sensor Output Impedance ( 25C): 1.5k max Output Details Output Compatability Clipped Sine Drive Capability 10k//10pF 10% Output Voltage Level ( Vs min - see note 2): 0.8V pk-pk min Output: DC coupled (see note 3) Note 2: Specified for the load stated in the Output Details section 25C. Note 3: External AC-coupling capacitor required, 1nF or greater 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 23:27 using Part Data Sheet V1.00014 Page 1 of 2TCXO Specification Part No. + Packaging: LFTCXO070038Cutt Output Control Power-down: Logic 1 (80%Vs min) to pad 1 enables oscillator output. Logic 0 (20%Vs max) to pad 1 disables oscillator output. Standby Current: 2A max (<0.01A typ) Start-up Time (amplitude within 90% of specified output level): 0.5ms max Start-up Time (frequency within 0.5ppm of steady state): 2ms max Noise Parameters Phase Noise 25C (typ): -62dBc/Hz 1Hz -90dBc/Hz 10Hz -112dBc/Hz 100Hz -132dBc/Hz 1kHz -145dBc/Hz 10kHz -147dBc/Hz 100kHz 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. Thermal Cycling: JESD22 Method JA-104C: 1000 temperature cycles, where each cycle consists of 25mins soak time -40C followed by 25mins soak time 85C, with 60secs maximum transition time between temperatures, air to air transition. Moisture Resistance: MIL-STD-202 M106g: 1000hrs 85C, 85%RH, biased. Note: Frequency shift 1ppm after environmental conditions. 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 23:27 using Part Data Sheet V1.00014 Page 2 of 2