Taijing Technology: Empowering High-Speed Optical Module Innovation with Differential Crystal Oscillator Technology
In recent years, driven by strong advancements in data centers, 5G communication, and artificial intelligence, optical modules have rapidly evolved towards high speed, high density, and low power consumption. As the "clock heart" of optical modules, the performance of differential crystal oscillators directly determines the stability and reliability of signal transmission. Taijing Technology is deeply involved in the field of frequency control, and its differential crystal oscillator series products are becoming a key support for achieving performance breakthroughs in high-end optical modules due to their excellent technical characteristics.
01 Core technological advantages: precision, compactness, and efficiency
Taijing Technology's differential crystal oscillator innovates around three dimensions: high-frequency stability, miniaturized packaging, and energy efficiency optimization, effectively addressing the design challenges of high-speed optical modules.
High frequency signal integrity guarantee: When the operating rate of the optical module climbs to 800G/400G, the phase noise and jitter performance of the clock signal become the decisive factors for the system error rate. Taijing Technology has achieved ultra-low phase noise and femtosecond level jitter output through advanced crystal design and circuit optimization. For example, its differential oscillator for high-speed optical communication has excellent phase noise performance at key frequencies such as 156.25MHz and 312.5MHz, which can significantly reduce timing errors in high-speed serial links and provide a clean clock reference for high-order modulation signals such as 112Gbps PAM4.
Space adaptability and integrated design: To adapt to the increasingly compact layout of optical modules, Taijing Technology has launched multiple small-sized differential crystal oscillators, with packaging covering mainstream specifications such as 2016, 2520, 3225, etc. Compared to traditional solutions, its device footprint can be reduced by up to 50%, leaving valuable space for internal wiring, heat management, and functional expansion of optical modules. This miniaturization advantage is particularly suitable for high-density pluggable modules such as QSFP-DD and OSFP, helping customers increase single rack transmission capacity.
Energy efficiency improvement and thermal management: In response to the demand for green transformation of data centers, Taijing Technology has introduced low-power architecture and intelligent output regulation technology into its products. Its unique low-voltage differential output design effectively alleviates the thermal load of the optical module. Excellent power control not only extends device lifespan, but also contributes to system level energy efficiency improvement.
02 Temperature compensated high fundamental frequency differential crystal oscillator: a stable timekeeper in harsh environments
Temperature changes are one of the main factors affecting the frequency accuracy of crystals. Taijing Technology combines temperature compensation technology (TCXO) with high fundamental frequency crystals to launch a series of temperature compensated high fundamental frequency differential crystal oscillators specifically designed for applications with high environmental stress, demonstrating unique value in optical modules:
Frequency stability across all temperature ranges: This series of products is equipped with a high-sensitivity temperature sensing and compensation circuit, which can maintain a high frequency stability of ± 20ppm within a temperature range of -40 ℃ to+105 ℃ or even wider. This is crucial for optical modules in outdoor 5G fronthaul, edge data centers, and other temperature sensitive scenarios, ensuring that clock signals do not drift with fluctuations in ambient temperature.
High fundamental frequency and low phase noise synergy: By selecting high-frequency fundamental crystal and optimizing the oscillation circuit, Taijing Technology's temperature compensated differential crystal oscillator maintains an extremely low phase noise base while outputting high-frequency signals (such as 156.25MHz, 312.5MHz, etc.). The high fundamental frequency design reduces the phase noise degradation caused by the frequency doubling process, directly outputs the required frequency, simplifies the clock tree design of the optical module, and further improves the overall signal quality.
Improve system transmission limit: In long-distance transmission applications, optimizing clock phase noise can directly translate into improving system link budget. Tests have shown that by using high-performance temperature compensated differential crystal oscillators, the bit error rate of optical modules can be optimized from the order of 10⁻¹² to below 10⁻¹⁵, which is equivalent to significantly extending the effective transmission distance while maintaining the same bit error performance. For infrastructure such as submarine cables and trunk networks, this means that the number of relay stations may decrease, thereby reducing construction and maintenance costs.
03 The application value in optical modules
Taijing Technology's differential crystal oscillator can be widely used in 400G/800G/1.6T multi rate optical modules, and its value is reflected in:
Provide reliable clock for high-speed interfaces: As a reference clock for SerDes, CDR, or modulation driver circuits, it ensures accurate sampling of high-order modulation signals such as PAM4.
Enhance environmental adaptability: The temperature compensated high fundamental frequency series helps industrial grade, vehicle mounted, and outdoor communication equipment cope with temperature challenges and improve network reliability.
Support module miniaturization and energy saving: The small size and low power consumption characteristics support high-density port design and green data center construction.
With the gradual clarification of the optical module technology path, higher requirements have been put forward for clock sources in terms of frequency, jitter, power consumption, and integration. Taijing Technology continues to invest in research and development, and its differential crystal oscillator products are evolving towards higher frequencies, lower jitter, and more intelligent temperature compensation. The goal is to provide core timing solutions for the next generation of optical interconnection, supporting the global digital infrastructure to move towards a faster, more reliable, and more energy-efficient future.
