The Microchip DSC1123CI2-0000T: A Precision 125 MHz LVDS Oscillator for Demanding Applications

In the realm of high-speed digital systems, the integrity of the clock signal is paramount. It is the heartbeat that synchronizes operations and ensures reliable data transmission. The Microchip DSC1123CI2-0000T stands out as a critical component in this domain, engineered to deliver exceptional performance as a 125 MHz LVDS oscillator. This device encapsulates the pinnacle of precision timing technology in a compact, surface-mount package.

This oscillator belongs to Microchip's family of Disciplined Silicon Oscillators (DSOs), which leverage a fundamental silicon MEMS resonator for superior reliability and robustness compared to traditional quartz-based solutions. The DSC1123CI2-0000T is specifically designed to provide a differential LVDS (Low-Voltage Differential Signaling) output. This output type is a significant advantage in noisy environments, as the differential signal is highly resistant to common-mode noise, ensuring a cleaner clock signal with reduced electromagnetic interference (EMI). This makes it an ideal choice for high-speed applications such as networking switches, routers, enterprise servers, storage systems, and high-performance FPGAs and ASICs.

Key to its performance is its exceptional frequency stability of ±25 ppm. This tight tolerance ensures that the 125 MHz output frequency remains consistent across a wide operational temperature range, which is crucial for maintaining synchronization and data integrity in thermally challenging environments. Furthermore, the device offers very low phase jitter, typically below 1 ps (typical RMS phase jitter, 12 kHz to 20 MHz), which is essential for minimizing timing errors in high-speed serial data links and improving overall system bit error rate (BER).

Housed in a small 5.0mm x 3.2mm ceramic package, the DSC1123CI2-0000T is designed for automated assembly processes, offering a drop-in replacement for many quartz oscillators but with the added benefits of higher resilience to shock and vibration. Its quick start-up time and low power consumption further enhance its suitability for power-sensitive and always-on applications.

ICGOOODFIND: The Microchip DSC1123CI2-0000T is a high-performance LVDS oscillator that provides a robust, low-jitter, and highly stable 125 MHz clock signal. Its MEMS-based technology and differential output make it a superior and reliable timing solution for the most demanding high-speed digital systems.

Keywords: LVDS Oscillator, 125 MHz, Low Phase Jitter, High Frequency Stability, MEMS Timing.