SiTime SiT1568(5 ppm, 32.768 kHz TCXO with In-System Auto-Calibration)
【产品特性】1.2mm2Micropower, 5 ppm, 32.768 kHz TCXO with In-System Auto-Calibration
【产品应用】• Smart watches, health and wellnessmonitors
• Ultra-accurate RTC reference clock
• Smart utility meters, E-meters
• Internet of Things (IoT)
【文字介绍】SiT1568 is an ultra-small and ultra-low power 32.768 kHz TCXO optimized for battery-powered applications. SiTime’s silicon MEMS technology enables the first 32 kHz TCXO in the world’s smallest footprint and chip-scale packaging (CSP). Typical supply current is 4.5 μA under no load condition.
SiTime's MEMS oscillator consists of a MEMS resonator and a programmable analog circuit. SiT1568 MEMS resonator is built with SiTime’s unique MEMS First™ process. A key manufacturing step is EpiSeal™ during which the MEMS resonator is annealed with temperatures over 1000°C. EpiSeal creates an extremely strong, clean, vacuum chamber that encapsulates the MEMS resonator and ensures the best performance and reliability. During EpiSeal, a poly silicon cap is grown on top of the resonator cavity, which eliminates the need for additional cap wafers or other exotic packaging. As a result, SiTime’s MEMS resonator die can be used like any other semiconductor die.One unique result of SiTime’s MEMS First and EpiSeal manufacturing processes is the capability to integrate SiTime’s MEMS die with a SOC, ASIC, micropro- cessor or analog die within a package to eliminate external timing components and provide a highly integrated, smaller, cheaper solution to thecustomer.