## Technical Overview of M5R14TQJ-R The **M5R14TQJ-R** is a high-performance **Crystal Oscillator (XO)** manufactured by **TXC Corporation**. It belongs to the M5 series, which is specifically designed for high-speed networking and data communication applications requiring low jitter and high stability. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Component Type** | Differential Crystal Oscillator (XO) | | **Output Type** | LVPECL (Low-Voltage Positive Emitter-Coupled Logic) | | **Nominal Frequency** | Typically 156.25 MHz (Common for Ethernet) | | **Supply Voltage (Vdd)** | 2.5V or 3.3V | | **Frequency Stability** | ±25 ppm to ±50 ppm | | **Package Size** | 3.2 x 2.5 mm (Small Form Factor) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Phase Jitter** | < 0.2 ps (12 kHz to 20 MHz) | --- ### 2. Functional Electronic Components The M5R14TQJ-R is an integrated solution containing several sub-elements: 1. **Quartz Crystal Blank:** The heart of the device, providing the fundamental mechanical resonance. 2. **Oscillator IC:** An ASIC that sustains the oscillation and manages the frequency synthesis. 3. **LVPECL Driver:** A differential output stage that ensures high-speed signal integrity over PCB traces, minimizing EMI and noise susceptibility. 4. **Decoupling Capacitors (Internal):** Integrated to stabilize the internal voltage supply. --- ### 3. Pin Configuration Standard 6-pin layout for the 3225 (3.2x2.5mm) package: | Pin # | Symbol | Function | | :--- | :--- | :--- | | 1 | OE | Output Enable (High = Enable) | | 2 | NC | No Connection | | 3 | GND | Ground | | 4 | OUT | Positive Output | | 5 | OUTN | Complementary (Negative) Output | | 6 | Vdd | Supply Voltage | --- ### 4. Application Areas Due to its **Low Jitter** and **LVPECL** output, this part is commonly found in: * **10G/40G/100G Ethernet:** Used as a reference clock for PHYs and MACs. * **Fiber Channel:** Storage area networks. * **Servers & Storage:** High-speed data processing units. * **Base Stations:** Telecommunication infrastructure.