## Technical Overview of CSACW22M5X53-R0 The **CSACW22M5X53-R0** is a specific type of electronic component known as a **Ceramic Resonator**. It is manufactured by **Murata Manufacturing Co., Ltd.** and belongs to the **CERALOCK®** product line. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 22.58 MHz | | **Frequency Tolerance** | ±0.5% | | **Resonance Impedance** | 40 Ω (Max) | | **Built-in Load Capacitance** | 5 pF | | **Mounting Type** | Surface Mount (SMD) | | **Operating Temperature** | -20°C to +80°C | | **Package / Case** | 2520 (2.5mm x 2.0mm) | --- ### 2. Functional Description A ceramic resonator acts as a timing element in electronic circuits. It utilizes the mechanical resonance of piezoelectric ceramics to provide a stable clock signal for microcontrollers (MCUs) or other digital ICs. * **Integrated Capacitors:** The "X" in the part number indicates it has **built-in load capacitors**. This eliminates the need for external capacitors on the PCB, saving space and reducing component count. * **Piezoelectric Effect:** It converts electrical energy into mechanical vibrations and vice versa to maintain a precise frequency. --- ### 3. Application Use Cases This specific frequency (22.582 MHz) is commonly found in audio equipment or specific telecommunication standards. General applications include: 1. **Microcontrollers:** Providing the "heartbeat" for processors. 2. **Audio Gear:** Clocking for Digital-to-Analog Converters (DACs). 3. **Consumer Electronics:** Remote controls, toys, and small appliances. --- ### 4. Comparison: Ceramic Resonator vs. Quartz Crystal While both provide timing, they differ in performance: | Feature | Ceramic Resonator | Quartz Crystal | | :--- | :--- | :--- | | **Cost** | Lower | Higher | | **Precision** | Moderate (±0.5%) | High (±0.001%) | | **Start-up Time** | Very Fast | Slower | | **Size** | Smaller (with integrated caps) | Larger | --- ### 5. Land Pattern (Typical) ```text [ 2.5mm ] +-------------+ | (1) (3) | (1) Input | (2) | (2) Ground +-------------+ (3) Output ```