## Overview: SFECF10M7DF00-R0 The **SFECF10M7DF00-R0** is a high-performance **Surface Mount Device (SMD) Ceramic Filter** manufactured by **Murata Electronics**. It belongs to the SFECF series, which is specifically designed for use in FM receivers, communication equipment, and intermediate frequency (IF) stages. --- ### Technical Specifications | Parameter | Specification | | :--- | :--- | | **Center Frequency (fc)** | 10.700 MHz | | **3dB Bandwidth** | 150 kHz ± 50 kHz | | **Insertion Loss** | 6.0 dB max | | **Input/Output Impedance** | 330 $\Omega$ | | **Package Type** | SMD (Small Form Factor) | | **Operating Temperature** | -20°C to +80°C | --- ### Key Features and Construction 1. **Ceramic Material:** Utilizes the piezoelectric effect of ceramic materials to filter out unwanted frequencies while allowing the desired 10.7 MHz signal to pass. 2. **Miniaturization:** The "CF" suffix denotes a small, thin profile suitable for modern, compact electronic boards where space is a premium. 3. **Flat GDT Characteristics:** This specific model is often chosen for its Group Delay Time (GDT) characteristics, which minimize signal distortion in FM applications. 4. **Automatic Mounting:** Designed for standard pick-and-place assembly machines and reflow soldering. --- ### Common Applications * **FM Radio Receivers:** Used in the IF (Intermediate Frequency) stage to select the desired station and reject noise. * **Wireless Communication:** Integrated into cordless phones and RF modules. * **Audio Equipment:** Used in high-fidelity tuners and receivers to ensure clear signal processing. --- ### Pin Configuration (General Layout) The device typically features three main terminals: ```text [ Input ] ---- [ Ground ] ---- [ Output ] ``` * **Input:** Receives the modulated RF signal. * **Ground:** Must be connected to a solid ground plane to ensure filter stability and stopband attenuation. * **Output:** Sends the filtered 10.7 MHz signal to the discriminator or next IF stage. ---