## Technical Overview of CSTCE13M5G52-R0 The **CSTCE13M5G52-R0** is a specific model of a **Ceramic Resonator** manufactured by Murata Electronics. It belongs to the CERALOCK® family, which are high-precision components used to provide a stable clock signal for microcontrollers and other digital circuits. --- ### 1. Key Technical Specifications The following table summarizes the core electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Nominal Frequency** | 13.520 MHz | | **Frequency Tolerance** | ±0.5% | | **Frequency Stability** | ±0.3% (over temperature) | | **Built-in Load Capacitance** | 10 pF | | **Operating Temperature** | -20°C to +80°C | | **Package Type** | SMD (Surface Mount Device) | | **Package Dimensions** | 3.2 x 1.3 mm (Small Cap Chip Type) | | **Resonant Impedance** | 40 Ω (Max) | --- ### 2. Functional Components A ceramic resonator is an electromechanical device that utilizes the **Piezoelectric Effect**. The CSTCE series includes three primary internal elements: 1. **Ceramic Substrate:** A high-Q piezoelectric ceramic material that vibrates at a specific frequency when an AC voltage is applied. 2. **Integrated Capacitors:** Unlike standard crystals that require external loading capacitors, the "CST" series has these built-in. This reduces the PCB footprint and simplifies design. 3. **Electrodes:** Metallic layers that facilitate the connection between the ceramic element and the circuit traces. --- ### 3. Comparison: Ceramic Resonator vs. Quartz Crystal While they serve similar purposes, the CSTCE13M5G52-R0 differs from a traditional quartz crystal in several ways: | Feature | Ceramic Resonator (CSTCE) | Quartz Crystal | | :--- | :--- | :--- | | **Accuracy** | Moderate (±0.5%) | High (±0.001%) | | **Start-up Time** | Very Fast | Slower | | **Size** | Small (Integrated Caps) | Larger (External Caps needed) | | **Cost** | Lower | Higher | | **Durability** | High Mechanical Strength | Fragile (Sensitive to shock) | --- ### 4. Typical Application Circuit In a typical microcontroller application, the CSTCE13M5G52-R0 connects to the `OSC_IN` and `OSC_OUT` pins. Because it has built-in capacitors, the center pin (Pin 2) is connected to **Ground (GND)**. ```text Microcontroller +---------------+ | | | [OSC_IN] [OSC_OUT] +-------+-------+ | | +-------+-------+-------+ | (1) (2) (3) | | Input GND Output| <-- CSTCE13M5G52-R0 +-----------------------+ ``` --- ### 5. Common Use Cases * **Microcontrollers:** Providing the main system clock for 8-bit or 16-bit MCUs. * **USB Peripherals:** Clocking for low-speed USB devices. * **Consumer Electronics:** Remote controls, toys, and small appliances where extreme precision (like a real-time clock) is not required. * **Automotive:** (Non-safety critical) such as infotainment controls.