Silicon Labs premiered the industry’s most highly integrated MEMS-based oscillators designed to replace general-purpose crystal oscillators (XOs) in cost-sensitive, low-power and high-volume industrial, embedded and consumer electronics applications.
The Si50x oscillators are based on the company’s patented CMEMS technology – the first to enable MEMS structures to be built directly on top of standard CMOS wafers in high-volume fabs, resulting in fully integrated, highly reliable monolithic ‘CMOS+MEMS’ IC solutions.
The new oscillators tightly couple the MEMS resonator with CMOS temperature sensor and compensation circuitry, ensuring a highly stable frequency output in the face of thermal transients and over the full industrial temperature range. The end result is a predictable, reliable frequency reference over the long operating life-spans of industrial and embedded applications. CMEMS resonators are passively compensated, using materials with offsetting temperature behaviours in the design.
The Si50x devices support any frequency between 32 kHz and 100 MHz. Frequency stability options include ±20, ±30 and ±50 ppm across extended commercial (-20°C to 70°C) and industrial (-40°C to 85°C) operating temperature ranges.
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