Precision Timing for AI

Intelligent Automotive AI Field

The core requirements of Intelligent Automotive AI are high reliability, real-time response, and multi-device collaboration. Crystal oscillators must meet automotive-grade temperature, vibration, and reliability standards.


1. Application Scenarios and Products

 

• Autonomous Driving Systems (L2-L4 levels): LiDAR, radar, camera multi-sensor fusion AI decision-making


• Intelligent Cockpit: AI voice interaction, gesture control, personalized scene recommendations


• V2X (Vehicle-to-Everything): AI communication decisions between vehicles and roadside devices (e.g., collision warning) 


• Child Presence Detection (CPD): AI infrared/ultrasonic detection to prevent children from being left in the vehicle


2. Role of Crystal Oscillators 


• Multi-Sensor Synchronization: Ensures LiDAR point cloud data, camera images, and radar signals are aligned on the same timeline, avoiding AI misjudgments and timeline disruptions.


• High Fault Tolerance Assurance: Maintains frequency stability in wide temperature range (-40℃~125℃), preventing AI system crashes due to extreme temperatures. 


• Communication Real-Time Performance: Provides precise reference frequency for wireless transceiver modules, ensuring millisecond-level response for AI decisions.


3. Common Crystal Oscillator Types and Features


Crystal Oscillator Type

Model Reference
Core Features
Application Requirements
SMD Crystal (XTAL)
7U, 7E, 7F, 7Y, 7K, 7R, 7L, etc.
Small size (3.2×2.5~1.6×1.2mm), low ESR for low power consumption, high stability (±10ppm) 
Vehicle sensor nodes, body AI control units
GLASS Sealed Crystal
7Z, 7V, 6I, etc. 

 Poor thermal conductivity, hard top cover that does not deform, good high-temperature resistance, supports PCB potting process

One-key ignition switch, central control panel, motor control board


HCMOS Clock Oscillator (XO)

3N, 2N, 1N, 0N

Wide output frequency range (1MHz~200MHz), strong voltage compatibility (1.8V~3.3V), low EMI, low jitter, high temperature stability (±25ppm -40~85℃)

Vehicle sensor nodes, body AI control units, AI processors, etc.

Temperature Compensated Crystal Oscillator (TCXO)
7X, 7Q, 8W, 5T, etc.
Extremely high wide-temperature stability (±0.5ppm@-40℃~85℃), low voltage (1.8V), clipped sine wave and CMOS output optional
Positioning modules, V2X modules


strong shock resistance (60000G impact)


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