In robotic systems, time reference is not merely about "providing frequency," but serves as the fundamental foundation that permeates control loops, communication synchronization, data sampling, and time alignment. Once clock drift, jitter, or phase noise degradation occurs, its effects will be progressively amplified throughout the system chain, ultimately manifesting as control errors, communication instability, and positioning deviations.
YXC Yangxing Technology's temperature-compensated crystal oscillator (TCXO) and voltage-controlled temperature-compensated crystal oscillator (VCTCXO) deliver engineering-grade reliable time reference for robotic systems, featuring ppm-level frequency stability and low phase noise.
I. Clock Error Amplification Chain: From Micro-deviation to System Performance Degradation
Robot key performance metrics depend on three categories of time indicators, and any deterioration in these indicators can trigger a chain reaction of issues:
• Frequency accuracy (ppm): Determines long-term errors (e.g., positioning, synchronization offset)
• Short-term stability/jitter: Determines the instantaneous sampling and control accuracy
• Phase noise: Determines communication link quality and spectrum purity
In complex robotic systems, these errors are progressively amplified through control loops, sampling systems, and communication links. Yangxing Technology's TCXO provides a high-precision clock reference that blocks error propagation at the source, enabling a quantum leap in overall system performance.
II. Four Core Modules of the Robot: Engineering-Level Impact of Temperature-Tolerant Crystal Oscillator
1. Main Control and Motion Control System (MCU/SoC/Servo Control)
Robot control systems rely on fixed-period execution of PID or model predictive control (MPC):
• For standard crystal oscillators (temperature drift ±10–20 ppm):
Temperature drift in Ø① clocks leads to unstable control cycles, which directly alters the system's closed-loop phase margin.
The Ø② ultimately manifested as: robotic arm shaking, significant trajectory deviation, and reduced repeatability of positioning accuracy.
• Utilizes high-precision TCXO (≤0.05ppm):
① control cycle exhibits high stability, with enhanced parameter consistency in the closed-loop system.
② can enhance multi-axis synchronization accuracy, particularly in high-speed coordinated motion scenarios.
✅ Recommended Solution by YXC Yangxing Technology
• High-precision temperature-compensated crystal oscillator YSO510TP, suitable for high-end motion control and multi-axis coordination
2. Wireless and Wired Communication Modules (5G/Wi-Fi/Industrial Ethernet)
Communication systems are highly sensitive to crystal oscillator phase noise, which primarily affects the error vector magnitude (EVM) in robotic communication.
• If the phase noise is high (> -140dBc):
① Constellation pattern diffusion leads to increased bit error rate
②This effect becomes more pronounced in high-speed communication modes such as 64QAM/256QAM.
• When using YXC Yangxing Technology's low-phase-noise TCXO (minimum-150dBc@1kHz):
①Capable of enhancing signal purity and reducing EVM
②Can enhance communication stability in complex electromagnetic environments
✅ Recommended Solution by YXC Yangxing Technology
• YSO512ET series (ultra-high precision, low phase noise)
• YSV350TP series (VCTCXO, with AFC/PLL frequency modulation compensation support)
3. Sensors and Fusion System (IMU/LiDAR/Camera)
Multi-sensor fusion heavily relies on temporal alignment:
• If clock jitter or drift occurs:
①Increased IMU integral error (integral offset of angular velocity/acceleration)
②LiDAR point cloud and visual frame misalignment
③ Convergence performance degradation of fusion algorithms (EKF/UKF)
• Advantages of high-stability TCXO:
① Reduce sampling jitter
② Improve timestamp consistency
✅ Recommended Solution by YXC Yangxing Technology
• YSO510TP/YSO512ET (high-precision temperature-compensated crystal oscillator)
4. Positioning and Time Synchronization System (GNSS/RTK/PTP)
GNSS positioning errors are directly correlated with time errors:
• Frequency error of 1 ppm ≈ 1 μs time error
• Time error of 1μs ≈ 300m distance error
Although the actual system incorporates correction mechanisms, the stability of the crystal oscillator directly impacts convergence speed and retention capability.
• Low-precision crystal oscillator: prone to lock loss, long reacquisition time, and significant positioning drift
• High-precision TCXO/VCTCXO: Enhances lock stability and improves RTK solution success rate
✅ Recommended Solution by YXC Yangxing Technology
• YSO510TP (High Precision Benchmark)
• YSV350TP (Supports frequency fine-tuning, compatible with synchronization systems/PLL)
III. YXC Yangxing Technology's Warm Compensation Crystal Oscillator Solution: Building a High-Performance Robot Core
To meet the demands for high stability and reliability in robotics, YXC Yangxing Technology's temperature-compensated crystal oscillator features:
• High-frequency stability: up to 0.05 ppm, effective against temperature drift and long-term errors
• Low phase noise: Minimum-150dBc@1kHz, optimized for communication and signal quality
• Packaging reliability: Metal top cover + ceramic base, capable of withstanding impact and aging
• Dimension coverage: 1612~7050, compatible with compact and standard designs
• VCTCXO capability: Supports system-level frequency calibration (AFC/PLL closed-loop)
YXC High-Precision Temperature-Tuned Crystal Oscillator: YSO510TP Series
Applicable modules: Robot main control and motion control system, Sensor and fusion system, Positioning and time synchronization system
main parameter
Frequency range: 10-52 MHz
Encapsulation dimensions: 1612~7050, with a minimum size of 1612, meeting the requirements for miniaturized robot packaging.
Frequency temperature frequency difference: ±0.28/0.5/1.5/2.5 PPM
Low phase noise: Minimum-150dBc 1kHz
YXC High-Stability Voltage-Controlled Temperature Crystallization Oscillator: YSV350TP Series
Applicable modules: Robot wireless and wired communication modules, positioning and time synchronization system
main parameter
Frequency range: 6.4-60 MHz
Encapsulation size: 2016~7050
Frequency stability: ±0.5 ppm (available)
Phase noise: -148dBc/Hz at 10KHz offset
XYC Ultra-High Precision Temperature-Tuned Crystal Oscillator: YSO512ET Series
Applicable modules: Robot wireless and wired communication modules, sensors and fusion systems
main parameter
Frequency range: 10/12/12.8/19.2/20/24.576/25/30/32/40/48/50 MHz, or specify
Package size: 5032,7050
Frequency stability: ±0.1 ppm (available)
