Based on the technical designation, the **M2AS1-6221-R2/Q** is a high-performance **Oscillator/Clock Generator** typically used in networking, telecommunications, and high-speed data processing applications. Below is a breakdown of its electronic characteristics and specifications. --- ## 1. Core Technical Specifications The component is designed for precision frequency control. The following table summarizes its typical electrical parameters: | Parameter | Specification | | :--- | :--- | | **Component Type** | Crystal Oscillator (XO) / Clock Generator | | **Output Frequency** | Usually fixed (varies by sub-type, e.g., 100MHz or 156.25MHz) | | **Operating Voltage** | 2.5V to 3.3V DC | | **Output Logic** | LVPECL or LVDS (Low-Voltage Differential Signaling) | | **Stability** | ±25ppm to ±50ppm | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Package Size** | 7.0 x 5.0 mm or 5.0 x 3.2 mm SMD | --- ## 2. Key Features and Design ### A. Differential Signaling The "Q" in the suffix often denotes a **Differential Output**. This is critical for high-speed electronics because: - It reduces Electromagnetic Interference (EMI). - It provides high immunity to common-mode noise. - It ensures signal integrity over longer PCB trace lengths. ### B. Phase Jitter Performance This series is engineered for **ultra-low phase jitter** (typically <1ps RMS). This makes it suitable for: - 10GbE / 40GbE / 100GbE Ethernet switches. - Fibre Channel. - PCI Express (PCIe) clocking. ### C. Mechanical and Reliability (R2) The "R2" designation often refers to a specific revision or packaging standard (such as Tape & Reel) designed for automated SMT (Surface Mount Technology) assembly lines. --- ## 3. Pin Configuration (Typical) | Pin Number | Function | Description | | :---: | :--- | :--- | | 1 | E/D or NC | Enable/Disable or No Connect | | 2 | NC | No Connect | | 3 | GND | Ground | | 4 | Output | Main Clock Output | | 5 | Output (Comp) | Complementary Clock Output | | 6 | Vcc | Supply Voltage | --- ## 4. Application Areas * **Networking:** Routers, Switches, and Base Stations. * **Storage:** SAN (Storage Area Networks) and Host Bus Adapters. * **Computing:** High-performance servers and FPGA clocking. ---