SiT1534

SiT1534 Ultra-Small, Ultra-Low Power 1 Hz – 32.768 kHz Programmable Oscillator Features ◼ Factory programmable from 32.768 kHz down to 1 Hz ◼ <20 ppm frequency tolerance ◼ Smallest footprint in chip-scale (CSP): 1.5 x 0.8 mm ◼ Pin-compatible to 2.0 x 1.2 mm XTAL SMD package ◼ Ultra-low power: <1 µA ◼ Vdd supply range: 1.5 V to 3.63 V over -55°C to +85°C ◼ Supports low-voltage battery backup from a coin cell or supercap ◼ 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 Min. Programmable Output Frequency 1.00 Typ. Max. Unit Frequency and Stability 32768.0 Hz Condition Factory programmed between 1 and 32.768 kHz in powers of 2 Frequency Tolerance[1] Frequency Stability[2] 25°C Aging F_tol F_stab -1 Frequency Stability 20 ppm 75 ppm 100 150 250 1 ppm TA = 25°C, post reflow, includes underfill, Vdd: 1.5 V – 3.63 V TA = -10°C to +70°C, Vdd: 1.5 V – 3.63 V TA = -40°C to +85°C, Vdd: 1.5 V – 3.63 V TA = -55°C to +85°C, Vdd: 1.5 V – 3.63 V TA = -10°C to +70°C, Vdd: 1.2 V – 1.5 V 1st Year Operati...