DSC8122BI5

Overview

The DSC8122BI5 is a pre-programmed MEMS oscillator from Microchip Technology, part of the DSC8122 series. It operates within a frequency range of 10 MHz to 460 MHz and utilizes LVPECL output format. The device supports a supply voltage of 2.25V to 3.6V with a maximum supply current of 58mA. It features an overall frequency stability of ±10ppm and functions across a temperature range of -40°C to +85°C. The component is housed in a 6-VDFN (QFN-4) surface-mount package measuring 5 mm by 3.2 mm with a maximum height of 0.90mm.

Feature Summary

• Utilizes MEMS technology for robust clock generation
• Provides LVPECL output interface for high-speed applications
• Pre-programmed configuration eliminates user programming steps
• Supports enable/disable functionality for power management

Applications

• High-speed data communication interfaces
• Telecommunications equipment timing
• Industrial control systems requiring precise clocking
• Networking infrastructure components

Procurement Notes

Verify that the specific suffix BI5 corresponds to the pre-programmed variant with LVPECL outputs and ±10ppm stability. Confirm the 6-VDFN package dimensions match the design footprint requirements. Ensure the operating voltage range aligns with the system power rails. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a fixed-frequency or pre-configured clock source is required without custom programming overhead. The LVPECL output is suitable for differential signaling applications demanding low jitter. Consider the ±10ppm stability requirement against system tolerance limits. The wide supply voltage range offers flexibility in power design compared to stricter voltage-dependent oscillators.

Part Context

This part belongs to the DSC8122 family of programmable MEMS oscillators. Unlike blank variants such as the DSC8122CI2 which require user programming, the BI5 suffix indicates a factory-preprogrammed unit. This family shares common MEMS core technology but differs in output formats, stability grades, and initial configuration states provided by the manufacturer.

Replacement Considerations

Direct substitutes include other pre-programmed variants within the same DSC8122 series, such as the DSC8122BI2, provided the output format and frequency specifications are compatible. Verify package compatibility when replacing with similar models from the same manufacturer.