LFTCXO070179 IQD

TCXO Specification IQXT-274 ISSUE 1 January 2016 Outline (mm) Description The IQXT-274 with voltage control option, 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. Applications: Feature phone Wi-Fi Wi-MAX/W-LAN Frequency Parameters Frequency 10.0MHz to 40.0MHz Frequency Tolerance 1.00ppm Frequency Stability 0.50ppm to 5.00ppm Frequency calibration: Offset from nominal frequency measured at 25C Pb-Free Reflow Reflow shift: Two consecutive reflows as per profile after 1 hour recovery at 25C: 1ppm max Frequency stability over temperature: referenced to the midpoint between minimum and maximum frequency value over the specified temperature range. Control voltage set to midpoint of control voltage (Note 1) Frequency slope, minimum of 1 frequency reading every 2C, over the operating temperature range (Note 1): 0.05 to 1ppm/C 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, note 2): 0.2ppm max Long term stability, frequency drift over 1 year at 25C: 2ppm max Electrical Parameters Supply voltage range: 2.4 to 3.7V Supply current (see note 2) 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 the oscillator output section at 25C Note 3: Voltage control cannot exceed Vcc -0.2V or below GND +0.2V Note 4: The maximum frequency tuning range depends on the design frequency and the trimming sensitivity of the crystal. Linearity performance degrades if maximum frequency tuning setting is selected Note 5: External AC-Coupling capacitor required. 1nF or greater recommended Frequency Adjustment Pulling 6ppm to 50ppm Input Impedence 500k min Control voltage range: The nominal control voltage value is midway between the minimum and maximum. (Note 3): 0.5 to 2.8V Linearity (deviation from straight line curve fit): 20% max 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 Apr 16 10:57 using Model Data Sheet V1.2550 Page 1 of 3TCXO Specification IQXT-274 Operating Temperature Ranges -40 to 85C Output Details Output Compatability Clipped Sine Drive Capability 10k//10pF 10% Output: DC coupled (see note 5) Output voltage level (at min supply voltage): 0.8V min (Note 2) Noise Parameters Phase noise (typ 16.369MHz & 25C): -60dBc/Hz 1Hz -89dBc/Hz 10Hz -113dBc/Hz 100Hz -132dBc/Hz 1kHz -145dBc/Hz 10kHz Environmental Parameters Shock: Half sine-wave acceleration of 100G peak amplitude for 11ms duration, 3 cycles each plane Humidity: After 48 hours at 85C2C 85% relative humidity non-condensing Thermal shock test: Exposed at -40C for 30 minutes then to 85C for 30 minutes constantly for a period of 5 days. Storage Temperature Range: -40 to 85C Manufacturing Details Washing: Able to withstand aqueous washing process Ordering Information *minimum information required Frequency* Model* Supply Voltage* Pad 1 function* Frequency Stability* Operating Temperature Range* Compliance RoHS Status (2011/65/EU) Compliant REACh Status Compliant MSL Rating (JDEC-STD-033): Not Applicable Packaging Details Pack Style: Reel Tape & reel in accordance with EIA-481-D Pack Size: 3,000 Pack Style: Bulk Loose in bulk pack Pack Size: 1 Electrical Specification - maximum limiting values 0.0V Frequency Stability Current Rise and Fall Duty Cycle Frequency Temperature Max (Min) Draw Time Range C ppm mA ns % 10.0MHz -40 to 85 0.5 2 - 40.0MHz - This document was correct at the time of printing please contact your local sales office for the latest version. Click to view latest version on our website. 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 Apr 16 10:57 using Model Data Sheet V1.2550 Page 2 of 3