SiT1532

SiT1532 Smallest Footprint (1.2 mm2) CSP 10 ppm Ultra-Low Power 32.768 kHz XTAL Replacement Features ◼ Smallest footprint in chip-scale (CSP): 1.5 x 0.8 mm ◼ Fixed 32.768 kHz ◼ <10 ppm frequency tolerance ◼ Ultra-low power: <1 µA ◼ Directly interfaces to XTAL inputs ◼ Supports coin-cell or super-cap battery backup voltages ◼ Vdd supply range: 1.5 V to 3.63 V over -40°C to +85°C ◼ Oscillator output eliminates external load caps ◼ Internal filtering eliminates external Vdd bypass cap ◼ NanoDrive™ programmable output swing for lowest power ◼ Pb-free, RoHS and REACH compliant Applications ◼ Mobile Phones ◼ Tablets ◼ Health and Wellness Monitors ◼ Fitness Watches ◼ Sport Video Cams ◼ Wireless Keypads ◼ Ultra-Small Notebook PC ◼ Pulse-per-Second (pps) Timekeeping ◼ RTC Reference Clock ◼ Battery Management Timekeeping Electrical Specifications Table 1. Electrical Characteristics Parameter Symbol Fixed Output Frequency Fout Frequency Tolerance[1] F_tol Frequency Stability[2] F_stab 25°C Aging Operating Supply Voltage Vdd Core Operating Current[3] Idd Output Stage Operating Current[3] Power-Supply Ramp Start-up Time at Power-up[4] Idd_out t_Vdd Ramp t_start Commercial Temperature Industrial Temperature T_use Min. -1 Typ. Max. Unit Frequency and Stability 32.768 kHz Frequency Stability 10 ppm 20 ppm 75 ppm 100 250 1 ppm Condition TA = 25°C, post reflow, Vdd: 1.5 V – 3.63 V TA = 25°C, post reflow with board-level underfill, Vdd: 1.5 V – 3.63 V TA ...