Overview
The ASEDV-19.200MHz-LC-T3 is a surface-mount quartz crystal oscillator that generates precise clock signals at 19.200 MHz. It's designed for applications requiring stable timing references in industrial and communication systems. The component features a compact LC-T3 package, making it suitable for space-constrained PCB designs. As a fundamental timing component, it plays a critical role in synchronizing operations within digital circuits. The oscillator's design ensures minimal phase noise and jitter, which are essential parameters for reliable data transmission in networking equipment and telecommunications systems.
Structure and Working Principle
The oscillator consists of a quartz crystal resonator housed in a hermetically sealed package with integrated oscillation circuitry. The quartz crystal exhibits piezoelectric properties, vibrating at its natural resonant frequency when electrical energy is applied. The internal circuitry maintains oscillation while providing buffered output to drive downstream components. The 'LC' in the model name refers to the load capacitance specification, which must be matched with the circuit design for optimal performance. The T3 package is a common surface-mount form factor measuring approximately 3.2 × 2.5 × 1.0 mm.
Key Features
The ASEDV-19.200MHz-LC-T3 offers frequency stability of typically ±20 ppm over the operating temperature range, ensuring reliable performance in varying environmental conditions. Its low current consumption makes it suitable for battery-powered devices. Additional features include fast start-up time (typically under 5 ms), excellent aging characteristics (less than ±3 ppm per year), and good shock resistance. The device operates on a standard 3.3V supply voltage, compatible with most modern digital systems. These specifications make it particularly valuable for applications requiring precise timing without excessive power draw.
Application Areas
This oscillator is commonly found in networking equipment such as routers, switches, and gateways where stable clock signals are essential for data synchronization. It's also used in industrial automation systems, medical devices, and consumer electronics. In telecommunications, the 19.200 MHz frequency is particularly useful for clock generation in serial communication interfaces like UART and USB. The component's reliability and precision make it suitable for mission-critical applications where timing errors could lead to system failures or data corruption.
Maintenance and Precautions
While quartz crystal oscillators are generally maintenance-free, proper handling during assembly is crucial. Avoid excessive mechanical stress during PCB mounting, as shocks can damage the crystal element or alter its frequency characteristics. Storage should be in dry, room-temperature conditions to prevent moisture absorption. When designing the PCB, follow manufacturer recommendations for pad layout and grounding to minimize EMI. Avoid exposing the device to temperatures beyond its specified range (-20°C to +70°C typically) to prevent frequency drift or permanent damage.
B2B Procurement Guide
When procuring ASEDV-19.200MHz-LC-T3 oscillators, verify specifications match your application requirements, particularly frequency stability, load capacitance, and operating temperature range. Consider ordering samples for testing before large-volume purchases. Lead times can vary significantly (typically 4-12 weeks), so plan inventory accordingly. For high-reliability applications, request certificates of conformance and reliability test data. Evaluate multiple suppliers as pricing can vary by 20-30% for equivalent specifications. Consider alternative part numbers with identical specifications that may offer better availability or pricing.