SMD TCXO/VCTCXO ASTXR-12 RoHS / RoHS II Compliant ESD Sensitive Pb 2.5 x 2.0 x 0.9mm Moisture Sensitivity Level (MSL) 1 OVERVIEW: Abracons ASTXR series of Temperature Compensated Crystal Oscillators are based on an Advanced-Analog Temperature Compensation Integrated Circuit, incorporated with Rakons Precision TCXO processing techniques. This composite enables exceptional frequency stability over temperature (0.50 ppm over -40C to +85C). Additionally, high-resolution screening algorithms are employed during the production verification process, ensuring that 100% of these devices are fully compliant to the stringent frequency stability specifications. For Power Sensitive applications, the ASTXR series provides the ability to preserve consumed power by placing the device in shut-down mode when not used. This series of devices are ideally suited for GPS and other mobile applications where performance, size, cost and power management are of critical importance FEATURES: APPLICATIONS: GPS Excellent phase noise performance Smartphone Low power consumption PND Miniature size: 2.5 x 2.0 x 0.9mm Communications RoHS compliant Consumer electronics Temperature stability choices are 0.5ppm to 2.5ppm depending on Wi-Fi operating temperature range WiMAX/W-LAN STANDARD SPECIFICATIONS: Parameters Minimum Typical Maximum Units Notes Frequency Range 10 52 MHz Supply Voltage (Vdd) 1.8 3.3 V Current Consumption ( Vdd max) 2 mA See Note 2 Operable Temperature Range -40 +85 C Storage Temperature Range -40 +85 C Initial Frequency Tolerance 1 ppm +25C2C at time of shipment After 2 consecutive reflows Reflow Drift 1 ppm and 1hr recovery +25C Ref. to (F +F )/2. MAX MIN Frequency Stability over Operating Vc is set to midpoint of 0.5 2.5 ppm Temperature Range control voltage range See Note 1 Frequency Slope (tested to a minimum of 1 freq. reading 0.1 1 ppm/C See Note 1 every 2C over operating temperature range) Static Temperature Hysteresis (Frequency change after reciprocal temperature ramped over the operating 0.6 ppm range. Frequency measured before and after at +25C) Sensitivity vs. Supply Voltage 0.1 ppm Variations (Vdd5% +25C) Sensitivity vs. Load Variations (10% 0.2 ppm See Note 2 load change +25C) Long Term Stability (frequency drift 1 ppm over 1 year +25C) Output Type DC Coupled Clipped Sine-wave See Note 3 Output Voltage Level 0.8 V See Note 2 ( minimum Vdd) Output Load Resistance 9 10 11 k Output Load Capacitance 9 10 11 pF Within 90% of specified Startup Time (amplitude) 0.5 ms output level Within 0.5ppm of steady Startup Time (frequency) 2 ms state frequency Visit www.abracon.com for Terms & Conditions of Sale Revised: 07.06.14 ABRACON IS ABRACON IS ISO9001:2008 30332 Esperanza, Rancho Santa Margarita, California 92688 CECERRTIFIED TIFIED tel 949-546-8000 fax 949-546-8001 www.abracon.comSMD TCXO/VCTCXO ASTXR-12 RoHS / RoHS II Compliant Pb 2.5 x 2.0 x 0.9mm Parameters Minimum Typical Maximum Units Notes Enable/Disable Function Input Voltage High (VIH) 80%*Vdd Vdd V Normal operating Mode Input Voltage Low (VIL) GND 20%*Vdd V Power Down Mode Stand-by Current <0.01 1 A Within 90% of specified Enable Time (amplitude) 0.5 ms output level Within 0.5ppm of steady Enable Time (frequency) 2 ms state frequency The nominal Vc value is Vdd 2.3V 0.3 1.5 V Control Voltage Range midway between the min (Vc) and max. Vc should not Vdd > 2.3V 0.4 2.4 V exceed Vdd+0.2V or GND Freq. shift from min to max Frequency Tuning 10 ppm of control voltages Control Voltage Input Port Impedance 500 k Phase Noise 26MHz Carrier ( +25C) 1 Hz offset -65 dBc / Hz 10 Hz offset -93 dBc / Hz 100 Hz offset -117 dBc / Hz 1,000 Hz offset -137 dBc / Hz 10,000 Hz offset -149 dBc / Hz 100,000 Hz offset -151 dBc / Hz Note: 1. Parts should be shielded from drafts causing unexpected thermal gradients. Temperature changes due to ambient air currents on the oscillator can lead to short term frequency drift 2. Specified for load stated in the Oscillator Output section at +25C 3. External AC-Coupling capacitor required. 1nF is recommended 4. Frequency shift 1ppm after reliability test conditions (see section 7.0) PART IDENTIFICATIONS: ASTXR - 12 - MHz - - Configuration Code Frequency Packaging See Table below for Blank = Bulk See Table below for available configurations available frequencies T = Tape & Reel(3k/reel) Visit www.abracon.com for Terms & Conditions of Sale Revised: 07.06.14 ABRACON IS ABRACON IS ISO9001:2008 30332 Esperanza, Rancho Santa Margarita, California 92688 CECERRTIFIED TIFIED tel 949-546-8000 fax 949-546-8001 www.abracon.com