## Electronic Component Analysis: CDBKB455KCLX36-R0_V01 The part number **CDBKB455KCLX36-R0_V01** refers to a **Ceramic Discriminator**, a specialized passive electronic component primarily used in communication circuits for frequency demodulation. --- ### 1. Component Overview Ceramic discriminators are used to convert frequency changes into voltage changes. This specific part is designed for **FM (Frequency Modulation)** detection, commonly found in radio receivers and cordless telephones. | Feature | Specification | | :--- | :--- | | **Component Type** | Ceramic Discriminator | | **Center Frequency** | 455 kHz | | **Application** | FM Demodulation / IF (Intermediate Frequency) stages | | **Mounting Type** | Surface Mount Device (SMD) | | **Manufacturer Family** | Murata (CDBKB Series) | --- ### 2. Breakdown of the Part Number The alphanumeric string contains specific technical identifiers for the component's performance: * **CDBKB**: The series identifier (Murata Ceramic Discriminator for FM). * **455K**: Represents the resonant center frequency of **455 kHz**. * **CLX36**: Defines the internal design parameters, such as the specific IC compatibility and phase characteristics. * **R0**: Refers to the packaging style (usually Tape & Reel). * **V01**: Version or revision code for internal manufacturing tracking. --- ### 3. Technical Functionality In an FM receiver, the signal is converted to an Intermediate Frequency (IF), usually 455 kHz. The discriminator works in conjunction with an FM IF IC to perform the following: 1. **Phase Shifting:** It provides a 90-degree phase shift at the center frequency. 2. **Detection:** As the frequency of the input signal deviates (modulates), the discriminator creates a linear phase shift. 3. **Output:** The IC interprets this phase shift to extract the original audio or data signal. --- ### 4. Typical Applications These components are miniaturized for modern electronics and are typically found in: * **Two-way radios** (Walkie-talkies). * **Cordless phones** (legacy analog systems). * **Remote control systems** (R/C cars and hobbyist gear). * **FM Pagers.** --- ### 5. Circuit Integration Example The discriminator is usually connected to the "Quadrature Detection" pins of an FM IF IC (e.g., Toshiba or NXP receiver chips). ```c // Typical Connection Logic [ IF Input Signal ] -> [ FM IF IC ] | [ CDBKB455KCLX36-R0 ] | [ Demodulated Audio Output ] ```