SMD TCXO ASTXR-12-26.000MHz-512545 ESD Sensitive Pb RoHS / RoHS II Compliant Moisture Sensitivity Level (MSL) – 1 2.5 x 2.0 x 0.8mm SMD OVERVIEW: Abracon’s ASTXR series of Temperature Compensated Crystal Oscillators are based on an Advanced-Analog Temperature Compensation Integrated Circuit, incorporated with Rakon’s Precision TCXO processing techniques. This composite enables exceptional frequency stability over temperature (≤±0.50 ppm over -40°C to +85°C). 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 0.8mm SMD • Communications • RoHS compliant • Consumer electronics • Temperature stability: ±0.5ppm over -40 ~ +85°C • Wi-Fi • WiMAX/W-LAN STANDARD SPECIFICATIONS: Parameters Nominal Frequency Supply Voltage (Vdd) Current Consumption (@Vdd max) Operable Temperature Range Storage Temperature Range Initial Frequency Tolerance @+25°C±2°C at time of shipment Minimum Typical 1.71 26.000 1.8 Maximum Units -40 1.89 1.5 +85 MHz V mA ºC -40 +85 ºC ±1 ppm ±1 ppm ±0.5 ppm 0.1 ppm/°C 0.6 ppm ±0.1 ppm ±0.2 ppm ±2 ppm Reflow Shift Frequency Stability over Operating Temperature Range Frequency Slope (tested to a minimum of 1 freq. reading every 2°C over operating temperature range) Static Temperature Hysteresis (Frequency change after reciprocal temperature ramped over the operating range. Frequency measured before and after at +25°C) Sensitivity vs. Supply Voltage Variations (Vdd±5% @ +25°C) Sensitivity vs. Load Variations (±10% load change @ +25°C) Long Term Stability (frequency drift over 1 year @ +25°C) 500 Frequency Drift on Power up 40 V 9.5 10 10.5 kΩ 10 10.5 pF Startup Time (amplitude) 0.5 ms Startup Time (frequency) 2 ms ABRACON IS ISO9001:2008 CE RTIFIED See Note 1, 4 See Note 4 See Note 4 Drift period: 1.0 to 2.0 seconds See Note 7 9.5 Output Load Capacitance After 2 consecutive reflows and 1hr recovery@+25°C Ref. to (FMAX+FMIN)/2. See Note 1, 2 Drift period: 2.0 to 3.0 seconds DC Coupled Clipped Sine-wave 0.8 See Note 5 See Note 6 Drift period: 0.03 to 1.0 second ppb/s 2.5 Output Type Output Voltage Level (@ minimum Vdd) Output Load Resistance Notes See Note 6 90% of specified output level Within ±0.5ppm of steady state frequency Visit www.abracon.com for Terms & Conditions of Sale Revised: 07.11.14 30332 Esperanza, Rancho Santa Margarita, California 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com SMD TCXO ASTXR-12-26.000MHz-512545 Parameters Enable/Disable Function (Pin 2) Input Voltage High (VIH) Input Voltage Low (VIL) Pb Minimum 90%*Vdd GND Enable Time (frequency) Power Down Delay Temperature Sensor Output Voltage @ +25°C Slope for – 30 to +85°C Load Resistance Load Capacitance @1Hz Noise @10Hz @100Hz Output Impedance @ +25°C Linearity over operating temperature range Phase Noise @ 26MHz Carrier (@+25°C) @ 1 Hz offset @ 10 Hz offset @ 100 Hz offset @ 1,000 Hz offset @ 10,000 Hz offset @ 100,000 Hz offset Typical 0.75 -8.5 100 Maximum Units Vdd 10%*Vdd V V 1.5 ms 2.5~10 ms -8.33 0.85 -8.1 30 1.0 0.33 0.15 1.5 V mV/°C kΩ pF µV/√Hz µV/√Hz µV/√Hz kΩ 0.2 % -67 -92 -115 -135 -148 -151 dBc / Hz dBc / Hz dBc / Hz dBc / Hz dBc / Hz dBc / Hz RoHS / RoHS II Compliant 2.5 x 2.0 x 0.8mm SMD Notes Normal operating Mode Power Down Mode Within ±0.5ppm of steady state frequency Delay prior to oscillator power down Sensor output and reference voltage pin. See Note 8 Note: 1. A maximum frequency stability over the temperature is required to be specified. Standard options are ±0.5ppm, ±1.0ppm, ±1.5ppm, and ±2.5ppm. 2. 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. 3. The operating temperature range needs to be specified. The extremes for this model are -40 and +85° C. 4. The maximum value is the specification. A minimum value, if present indicates the best specification available. 5. The unit will operate on any voltage between minimum and maximum values. 6. Specified for load stated in the Oscillator Output section at +25° C. 7. External AC-Coupling capacitor required. ≥ 1nF is recommended. 8. The recommended load resistance is ≥ 100kΩ. The load capacitance must be minimized for optional performance. REFERENCE DESIGN INFORMATION: ASTXR-12-26.000MHZ-512545 is equivalent to Rakon P/N 512545. ABRACON IS ISO9001:2008 CE RTIFIED Visit www.abracon.com for Terms & Conditions of Sale Revised: 07.11.14 30332 Esperanza, Rancho Santa Margarita, California 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com SMD TCXO ASTXR-12-26.000MHz-512545 Pb RoHS / RoHS II Compliant 2.5 x 2.0 x 0.8mm SMD PART IDENTIFICATIONS: ASTXR-12-26.000MHz -512545 Packing Blank: Bulk T: Tape & Reel (3k/reel) OUTLINE DIMENSION: Recommended Land Pattern Pin 1 2 3 4 5 6 Function GND Enable/Disable GND Output Temp. Sensor Vdd Dimensions: mm REFLOW PROFILE: ABRACON IS ISO9001:2008 CE RTIFIED Visit www.abracon.com for Terms & Conditions of Sale Revised: 07.11.14 30332 Esperanza, Rancho Santa Margarita, California 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com SMD TCXO ASTXR-12-26.000MHz-512545 Pb RoHS / RoHS II Compliant 2.5 x 2.0 x 0.8mm SMD TAPE & REEL: 3000pcs/reel Dimensions: mm ATTENTION: Abracon Corporation’s products are COTS – Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applications. Abracon’s products are not specifically designed for Military, Aviation, Aerospace, Life-dependant Medical applications or any application requiring high reliability where component failure could result in loss of life and/or property. For applications requiring high reliability and/or presenting an extreme operating environment, written consent and authorization from Abracon Corporation is required. Please contact Abracon Corporation for more information. ABRACON IS ISO9001:2008 CE RTIFIED Visit www.abracon.com for Terms & Conditions of Sale Revised: 07.11.14 30332 Esperanza, Rancho Santa Margarita, California 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com