The **SFECF10M7HA00S0-R0** is a high-performance **Ceramic Discriminator** manufactured by **Murata Electronics**. It is specifically designed for use in FM demodulation circuits, particularly for narrow-band communication systems. --- ### 1. Technical Specifications Below are the primary electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Center Frequency (fo)** | 10.700 MHz | | **Nominal Deviation** | ±30 kHz | | **Recovered Audio Voltage** | 650 mV min. (at Δf=±22.5kHz) | | **Distortion Factor** | 1.0% max. | | **Operating Temperature** | -20°C to +80°C | | **Package Type** | Surface Mount (SMD) | | **Series** | SFECF (CERALOCK® technology) | --- ### 2. Functional Role This part acts as a frequency-to-voltage converter. Its main roles include: * **FM Demodulation:** It converts frequency variations (FM signals) into corresponding voltage variations (audio or data signals). * **IC Compatibility:** It is designed to be used in conjunction with specific FM IF (Intermediate Frequency) ICs. * **Space Efficiency:** Due to its "Chip" (SMD) design, it allows for high-density mounting on PCBs compared to traditional leaded components. --- ### 3. Application Areas The SFECF10M7HA00S0-R0 is commonly found in the following devices: * **Wireless Communication:** Cordless phones, FM transceivers, and walkie-talkies. * **Radio Receivers:** High-precision FM radio tuners. * **Data Transmission:** Low-speed wireless data links that utilize FM modulation. --- ### 4. Circuit Implementation In a typical application, the discriminator is connected to the quadrature detector pins of an IF IC. ```c // Concept of Integration [IF Signal In] --> [FM IF IC] | [SFECF10M7HA00S0-R0] (Connected to Phase Shift/Detector Pins) | [Audio Output] ``` --- ### 5. Part Number Breakdown * **SFECF:** Series name (SMD Ceramic Filter/Discriminator). * **10M7:** Center frequency (10.7 MHz). * **HA00:** Designates the specific electrical characteristics (bandwidth/deviation). * **R0:** Packaging code (usually refers to 180mm diameter plastic tape reels).