The **ASTMUPC** series represents a high-performance family of **MEMS (Micro-Electro-Mechanical Systems) oscillators** manufactured by Abracon. These components are designed to replace traditional quartz crystals in applications requiring high reliability, compact size, and high-frequency stability. --- ### 1. Technical Overview The ASTMUPC belongs to the "Ultra Performance" category. Unlike traditional oscillators that use a vibrating quartz crystal, these use a silicon resonator and an integrated circuit (IC) to generate frequencies. | Feature | Specification Details | | :--- | :--- | | **Technology** | MEMS (Silicon-based) | | **Output Type** | LVCMOS | | **Frequency Range** | 1 MHz to 220 MHz | | **Supply Voltage** | 1.8V, 2.5V, 2.8V, 3.0V, or 3.3V | | **Operating Temp** | -40°C to +85°C (Industrial Grade) | | **Stability** | Down to ±20 ppm | --- ### 2. Key Advantages The "UPC" designation typically implies **Ultra-Performance Compactness/Configurability**. * **High Frequency Stability:** They maintain precise timing even under high-vibration environments where quartz crystals might fail. * **Programmability:** These oscillators can be factory-programmed to any frequency within their range to six decimal places. * **Durability:** Being solid-state (silicon), they are significantly more resistant to mechanical shock and thermal expansion issues. * **Size Efficiency:** Available in standard SMD footprints (e.g., 2.7 x 2.4mm, 3.2 x 2.5mm, 5.0 x 3.2mm, and 7.0 x 5.0mm). --- ### 3. Pin Configuration Most ASTMUPC models follow a standard 4-pin or 6-pin layout. Below is the typical 4-pin configuration: | Pin # | Name | Function | | :--- | :--- | :--- | | **1** | OE or ST | Output Enable (High = Active) or Standby | | **2** | GND | Ground Connection | | **3** | OUT | Clock Output Signal | | **4** | Vdd | Supply Voltage | --- ### 4. Part Number Breakdown Understanding the ASTMUPC part number helps in identifying the exact specifications: ```text Example: ASTMUPC-33-25.000MHz-E-T [Series] - [Voltage] - [Frequency] - [Stability] - [Packaging] ``` * **ASTMUPC:** Series Name. * **33:** Voltage (3.3V). * **25.000MHz:** Nominal Frequency. * **E:** Stability Code (e.g., ±20ppm). * **T:** Packaging (Tape & Reel). --- ### 5. Common Applications Due to their low jitter and high reliability, they are commonly found in: * **Ethernet Switches:** 10GbE, 40GbE, and 100GbE. * **Storage Area Networks:** Fiber Channel and PCI Express. * **Computing:** High-speed servers and RAID controllers. * **Industrial:** Robotics and automation sensors.