The **SFVLF10M7DAA0-R0** is a specialized electronic component manufactured by **Murata Electronics**. It belongs to the category of **Ceramic Filters**, specifically designed for intermediate frequency (IF) stages in FM broadcasting and communication equipment. --- ### 1. Component Overview This device is a piezoelectric ceramic filter that utilizes the energy-trapped thickness vibration mode. Its primary function is to provide high selectivity by allowing only a specific narrow band of frequencies to pass while attenuating others. ### 2. Technical Specifications The part number encodes specific technical details. Below is a breakdown of its primary electrical characteristics: | Parameter | Specification | |:---|:---| | **Center Frequency (fo)** | 10.700 MHz | | **3dB Bandwidth** | 230 kHz ± 50 kHz | | **Insertion Loss** | 4.0 dB max. | | **Spurious Response** | 35 dB min. (within 9-12 MHz) | | **Input/Output Impedance** | 330 $\Omega$ | | **Operating Temperature** | -20°C to +80°C | ### 3. Key Features * **High Selectivity:** Excellent shape factor, ensuring clear signal separation in crowded frequency environments. * **SMD Type:** Designed for surface-mount technology (SMT), facilitating automated high-speed assembly. * **Stability:** High stability against temperature fluctuations and aging. * **Compact Design:** Small footprint compared to traditional leaded ceramic filters. --- ### 4. Application Context The SFVLF series is most commonly found in the following circuits: 1. **FM Radios:** Used in the IF (Intermediate Frequency) stage to filter the 10.7 MHz signal after the mixer. 2. **AV Receivers:** Standard component for high-fidelity audio equipment. 3. **Wireless Communication:** Any application requiring precise 10.7 MHz signal processing. ### 5. Part Number Decoding (Murata Standard) ```text SF V LF 10M7 D A A0 -R0 | | | | | | | | | | | | | | | +-- Packaging (Tape & Reel) | | | | | | +------ Individual Specification | | | | +-+-------- Characteristics/Bandwidth | | | +-------------- Center Frequency (10.7 MHz) | | +------------------ Series Name (Lead-Free Type) | +--------------------- Filter Type (V-type) +----------------------- Surface Mount Filter ``` ---