The **W2AC-AZ1A-R/Q** is a high-precision, automotive-grade Crystal Oscillator (XO) produced by **TXC Corporation**. These components are specifically designed for timing and synchronization in harsh environments, particularly within the automotive sector. --- ### 1. Part Number Breakdown The suffixing and prefixing in TXC part numbers typically denote specific physical and performance characteristics: | Code Segment | Meaning | | :--- | :--- | | **W2** | Series designation (2.5 x 2.0 mm miniature SMD package) | | **AC** | CMOS Output type | | **AZ** | Automotive Grade (AEC-Q100 or AEC-Q200 compliant) | | **1A** | Frequency Stability and Operating Temperature range indicator | | **R/Q** | Packing method (Tape & Reel) and internal revision tracking | --- ### 2. Technical Specifications The W2 series is known for its low power consumption and small footprint. Below are the typical electrical parameters for this series: | Parameter | Typical Value | | :--- | :--- | | **Package Size** | 2.5 x 2.0 x 0.8 mm (4-pad SMD) | | **Frequency Range** | 1 MHz to 170 MHz | | **Supply Voltage (Vdd)** | 1.8V, 2.5V, or 3.3V | | **Output Type** | CMOS | | **Operating Temp Range** | -40°C to +125°C (Automotive Grade 1) | | **Frequency Stability** | ±25 ppm to ±100 ppm | | **Standard Compliance** | AEC-Q100 | --- ### 3. Key Electronic Features * **Tri-state Function:** Allows the output to be placed in a high-impedance state, which is useful for testing or reducing power consumption when the clock is not needed. * **AEC-Q100 Qualification:** This ensures the part has undergone rigorous stress testing (Temperature Cycling, Humidity, Mechanical Shock) to ensure reliability in vehicles. * **Low Phase Jitter:** Optimized for high-speed data transmission to minimize timing errors. * **RoHS Compliant & Lead-Free:** Meets environmental safety standards for global manufacturing. --- ### 4. Common Applications Due to the **AZ** (Automotive) designation, this part is found in: * **ADAS:** Advanced Driver Assistance Systems (Cameras, Lidar, Radar). * **Infotainment:** Dashboard displays and head units. * **Navigation:** GPS and GNSS modules. * **V2X Communication:** Vehicle-to-everything communication modules requiring precise timing. --- ### 5. Schematic Connection (Typical) ```mermaid graph LR Vdd[Pin 4: Vdd] --- Power[Supply] GND[Pin 2: GND] --- Ground[Ground] OE[Pin 1: OE/ST] --- Logic[Enable/Disable] OUT[Pin 3: Output] --- IC[Processor/MCU] ```