TCXO Specification IQXT-317 ISSUE 1; January 2016 Outline (mm) Description A high performance, surface-mount Temperature Compensated Crystal Oscillator (TCXO) offering excellent phase noise, frequency stability and VC tilt compensation. The IQXT-317 employs an analogue IC for the oscillator and temperature compensation. FEATURES: Excellent Phase Noise and Frequency Stability performance. Frequency Slope and Perturbation specifications can be customized. APPLICATIONS: Communications, Base Station, Femtocell, DSL/ADSL, LTE, SONET/SDH, WiMAX/WiBro, WLAN, IP Timing, Precision GPS. Frequency Parameters 5.0MHz to 52.0MHz Frequency ±1.00ppm Frequency Tolerance Tolerance Condition @ 25°C ±2°C Frequency Stability (referenced to (Fmax+Fmin)/2, temperature ramp ≤1°C/min and VC=2.5V): ±0.1ppm to 3.0ppm Ageing (@ 25°C): ±1ppm max over 1yr Frequency Slope (minimum of one frequency reading every 2°C over the operating temperature range, temperature ramp ≤1°C/min and VC=2.5V): 0.1ppm/°C max Static Temperature Hysteresis (frequency change after reciprocal temperature ramped over the operating range frequency measured before and after @ 25°C): 0.4ppm max Supply Voltage Variation (±5% change @ 25°C): ±0.1ppm max Load Variation (±10% change @ 25°C and load as stated in Output Details section): ±0.2ppm max Reflow Variation (after two consecutive reflows as per profile shown and 1hr recovery @ 25°C): ±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. Pb-Free Reflow Electrical Parameters Supply Voltage Range: 2.8V to 5.5V Supply Current (@ TA=25°C, Vs max and load as stated in Output Details section): 2.9mA max Frequency Adjustment Pulling ±6ppm to ±30ppm Control Voltage 2.5V ±2.0V Input Impedence 100kΩ min Linearity (deviation from straight line curve fit): 10% max Note: VC of 4.5V is only applicable when a Vs of 5.0V is applied. Operating Temperature Ranges -40 to 85°C 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 Apr 16 14:49 using Model Data Sheet V1.2550 Email: [email protected] Web: www.iqdfrequencyproducts.com Page 1 of 3 TCXO Specification IQXT-317 Output Details Output Compatability HCMOS/Clipped Sine HCMOS Output Waveform: Output Voltage Level Low (VoL): 10%Vs max Output Voltage Level High (VoH): 90%Vs min Rise and Fall Times (measured @ 10pF): 5ns max Duty Cycle (measured @ 50% level): 40/60% max Output Load Capability: 10pF Settling Time (time taken for frequency to reach specified Frequency Tolerance): 10ms max Note: Assumes no phase noise filtering - if low phase noise is required the Settling Time will be extended. Clipped Sine Output Waveform: Output Voltage Level (@ TA=25°C, Vs min and load=10kΩ//10pF): 0.8V pk-pk min Output Load Capability: 10kΩ//10pF Output: AC-coupled Start Up Time (amplitude within 90% of specified output level): 1ms max Settling Time (time taken for frequency to reach specified Frequency Tolerance): 10ms max Note: Assumes no phase noise filtering - if low phase noise is required the Settling Time will be extended. Noise Parameters Phase Noise (typical for a 10MHz HCMOS oscillator @ 25°C): -75dBc/Hz @ 1Hz -98dBc/Hz @ 10Hz -127dBc/Hz @ 100Hz -147dBc/Hz @ 1kHz -152dBc/Hz @ 10kHz -155dBc/Hz @ 100kHz -157dBc/Hz @ 1MHz Environmental Parameters Storage Temperature Range: -40 to 85°C Mechanical Shock: IEC 60068-2-27: Half sine-wave acceleration of 100G peak amplitude for 6ms duration, 3 times in 3 mutually perpendicular planes. Vibration: 10G rms from 30Hz to 1500Hz random for 4hrs in 3 mutually perpendicular planes, 12hrs total. Thermal Shock: Exposed @ -40°C for 30mins then 85°C for 30mins constantly for a period of 5 days. Humidity: After 48hrs @ 85°C ±2°C, 85% RH non-condensing. Note: The environmental conditions will cause a frequency shift @ 25°C of ≤1ppm. Manufacturing Details Maximum Process Temperature: 260°C (40secs max) Compliance RoHS Status (2011/65/EU) REACh Status MSL Rating (JDEC-STD-033): Compliant Compliant Not Applicable Packaging Details Pack Style: Reel Pack Size: 2,000 Tape & reel in accordance with EIA-481-D Pack Style: Bulk Pack Size: 1 Loose in bulk pack 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 Apr 16 14:49 using Model Data Sheet V1.2550 Email: [email protected] Web: www.iqdfrequencyproducts.com Page 2 of 3 TCXO Specification IQXT-317 Electrical Specification - maximum limiting values 0.0V Frequency Min Frequency Max 5.0MHz 52.0MHz Temperature Range Stability Current Draw Rise and Fall Time Duty Cycle °C ppm mA ns % -40 to 85 - - - - 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. Chipset Approval Table IQD Model Ref No. Frequency Chipset Type IC Supplier IQXT-317-1 509408 20.0MHz Microsemi IQXT-317-2 509768 40.0MHz ZL30152, ZL30155, ZL30157, ZL30159, ZL30160, ZL30165 Si5328, AppNote 776 IQXT-317-3 513872 40.0MHz Si5342, Si5344, Si5345 SiLabs SiLabs 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 Apr 16 14:49 using Model Data Sheet V1.2550 Email: [email protected] Web: www.iqdfrequencyproducts.com Page 3 of 3