### CSTCE11M0G52-R0: Technical Overview The **CSTCE11M0G52-R0** is a specific model of a **Ceramic Resonator** manufactured by Murata Electronics. It belongs to the CERALOCK® family, which are miniature, surface-mount components used to provide a stable clock signal for microcontrollers and other digital circuits. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Oscillating Frequency** | 11.000 MHz | | **Initial Frequency Tolerance** | ±0.5% | | **Frequency Stability (Temp)** | ±0.2% | | **Operating Temperature Range** | -20°C to +80°C | | **Built-in Load Capacitance** | 10 pF | | **Mounting Type** | SMD (Surface Mount Device) | | **Package / Case** | 3.2mm x 1.3mm (Small Cap Type) | | **Aging** | ±0.1% (over 10 years) | --- ### 2. Functional Description This part functions as a frequency control device. It is often compared to a Quartz Crystal but offers different trade-offs: * **Internal Capacitance:** This specific model features **built-in load capacitors**. This eliminates the need for two external capacitors on the PCB, saving space and reducing the Bill of Materials (BOM) cost. * **Piezoelectric Effect:** It utilizes the mechanical resonance of piezoelectric ceramics to create a stable electrical oscillation. * **Start-up Time:** Ceramic resonators typically have a faster start-up time compared to standard quartz crystals. --- ### 3. Pin Configuration & Circuit Integration The device is a **3-terminal** component: 1. **Input:** Connected to the OSC_IN of the MCU. 2. **Ground:** The center pin is connected to the system ground (GND). 3. **Output:** Connected to the OSC_OUT of the MCU. #### Typical Application Circuit ```text MCU ___________ | | | OSC_IN |----[ Pin 1 ] | | | | OSC_OUT |----[ Pin 3 ] | | | | GND |----[ Pin 2 ] |___________| | V Ground ``` --- ### 4. Comparison: Resonator vs. Crystal | Feature | Ceramic Resonator (CSTCE) | Quartz Crystal | | :--- | :--- | :--- | | **Accuracy** | Moderate (±0.5%) | High (±0.001%) | | **Cost** | Low | Higher | | **Size** | Very Small (Built-in Caps) | Requires external caps | | **Durability** | High vibration resistance | Sensitive to shock | **Best Used For:** USB controllers, small appliances, automotive electronics (non-safety critical), and general-purpose microcontrollers where extreme precision (like a real-time clock) isn't required.