Crystal Oscillator NT2520SC Temperature Compensated Crystal Oscillator (TCXO) NT2520S Series (CMOS) ■ Main Application Wireless module for Smart Meter, Bluetooth module for Automotive ■ Features ● Output level : CMOS ● Supports low power supply voltage. (Supports DC +1.7 V to +3.3 V.) ● Compact and light with a height, cubic volume, and weight of Max. 0.9 mm, 0.004 cm3, and 0.014 g, respectively. ● A surface-mount crystal oscillator. (Reflow soldering is possible.) ● Lead-free. Meets the requirements for re-flow profiling using lead-free solder. ■ Specifications Model Item Nominal Frequency (MHz) 19 to 52 Supply Voltage [VCC] (V) +1.8 +3.3 Load Impedance (pF) Current Consumption •Frequency setting conditions 1. Frequencies are set at normal temperatures (+25±2 °C). 2. Connect the #1 terminal of the oscillator to the ground that comes with the oscillator. NT2520SC 15 Enable (mA) Max. 10 (26MHz) Disable ( μA) Max. 10 (VCC = +3.3V) VOL Max. / VOH Min. (V) 0.2 VCC / 0.8 VCC Tr Max. / Tf Max. (ns) 5/5 ( at 0.2 to 0.8VCC ) Symmetry Min. to Max. (%) 45 to 55 ( at 1/2VCC ) Frequency/Temperature Characteristics Max. ±2.5×10–6 Operating Temperature Range (°C) –30 to +85 Storage Temperature Range (°C) –40 to +85 Long-term Frequency Stability Max. ±1.0×10–6/year Specification Number NSA3642B NSA3643B ■ Dimensions #4 2.5 mm #3 Terminal land connections 2.0 #1 #1 Stand-by #2 GND #3 OUTPUT #4 VCC #2 0.8±0.1 Bypass Capacitor #4 0.35±0.1 #3 #3 (0.95) (0.4) (0.95) #2 0.3 0.6 1.8 0.7±0.1 (0.15×0.15) #1 Resist #4 #1 (0.5) (1.8) (0.5) #2 Note) Please mount bypass capacitor (ex.0.01µF) between Vcc and GND (close to the product) to keep stable operation. Please specify the model name, frequency, and specification number when you order products. For further questions regarding specifications, please feel free to contact us. - 13 - 1503A_NT2520SC_e