The **M3EH53XQG-R** is a high-performance, automotive-grade Crystal Oscillator (XO) manufactured by **NDK (Nihon Dempa Kogyo)**. It belongs to the **M3** series, which is specifically designed for high-temperature stability and reliability in automotive and industrial electronics. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Component Type** | SPXO (Simple Packaged Crystal Oscillator) | | **Output Frequency** | Custom (Varies by specific sub-variant, typically MHz range) | | **Output Type** | CMOS | | **Supply Voltage (Vcc)** | +1.8V to +3.3V (Typical) | | **Operating Temperature** | -40°C to +125°C (Automotive Grade) | | **Package Size** | 2.5 x 2.0 mm | | **Compliance** | AEC-Q100/AEC-Q200 Qualified | --- ### 2. Breakdown of the Model Code While NDK part numbers can be complex, the "M3" prefix and specific suffix letters denote the following: * **M3:** Series identifier for compact, high-temperature oscillators. * **E:** Usually signifies the voltage range (typically 1.8V - 3.3V). * **H:** Denotes frequency stability (often ±50ppm or better over the full temp range). * **53:** Package size indicator (2.5 x 2.0mm footprint). * **XQG:** Internal manufacturing and output logic codes (CMOS logic). * **-R:** Indicates "Tape and Reel" packaging for automated SMT assembly. --- ### 3. Application Areas Due to its AEC-Q qualification and high heat resistance, this part is primarily found in: 1. **Automotive Systems:** ADAS (Advanced Driver Assistance Systems), Infotainment units, and Body Control Modules. 2. **Industrial Automation:** Sensor nodes and controllers operating in harsh environments. 3. **Communication Infrastructure:** High-stability clocking for localized networking equipment. --- ### 4. Circuit Implementation When integrating the M3EH53XQG-R, consider the following layout rules: * **Bypass Capacitor:** A 0.01µF to 0.1µF ceramic capacitor should be placed as close to the Vcc pin as possible to filter noise. * **Trace Impedance:** Keep the output signal trace short to minimize EMI and signal degradation. * **No-Connect (NC) Pins:** Ensure pins designated as NC are left floating to avoid interference with the internal IC.