SiTime Corporation, a subsidiary of MegaChips, has recently introduced the SiT9005, a groundbreaking programmable spread spectrum oscillator (SSXO) designed to help electronic products meet strict electromagnetic interference (EMI) standards. This innovative component is a game-changer for manufacturers, as it not only ensures compliance but also speeds up time-to-market by reducing the risk of costly delays caused by last-minute radiation issues.
One of the main challenges during product development is EMI non-compliance, which often leads to unexpected troubleshooting and production setbacks. The SiT9005 addresses this problem by spreading the clock signal and fine-tuning its rise and fall times, effectively lowering emissions. With the Time Machine II programmer from SiTime, engineers can even make real-time adjustments in the field, offering greater flexibility and control over system performance.
The SiT9005 is ideal for a wide range of applications, including IP cameras, industrial motors, multifunction printers, tablets, flat-panel displays, and other devices that must adhere to rigorous regulatory requirements. Its advanced features make it a versatile solution for both industrial and consumer electronics.
Key specifications include an impressive EMI reduction of up to 17dB at the carrier frequency and up to 30dB at harmonic frequencies. It offers 28 different spread spectrum options, with a center spread range from ±0.125% to ±2.0%, and a lower spread range from -0.25% to -4.0%. Additionally, there are 8 configurable FlexEdge rise/fall time settings, allowing precise control over signal transitions.
With a conversion rate ranging from 0.25ns to 40ns, the SiT9005 supports high-speed applications. It provides two types of spread spectrum waveforms—triangular or nonlinear Hershey Kiss—to suit various design needs. The device also delivers less than 15ps of optimal cycle-to-cycle jitter, making it suitable for timing critical high-speed chips.
The oscillator operates across a wide frequency range of 1 to 141MHz and features a low standby current of just 0.2μA, making it ideal for battery-powered systems. Available in three standard sizes—2.0 x 1.6mm (the smallest SSXO on the market), 2.5 x 2.0mm, and 3.2 x 2.5mm—it offers full plug-and-play compatibility.
Designed for industrial environments, the SiT9005 operates reliably between -40°C and +85°C, with excellent frequency stability of ±20ppm. It also includes LVCMOS output for seamless integration into modern digital circuits. Whether you're developing next-generation IoT devices or industrial automation systems, the SiT9005 is a powerful and flexible choice for meeting today's demanding EMI requirements.
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