DSC8122AI2

Overview

The DSC8122AI2 is a programmable MEMS oscillator from Microchip Technology, featuring LVPECL output. It operates within a frequency range of 10 MHz to 460 MHz with a stability of ±25 ppm. Powered by 2.25 V to 3.6 V, it draws a maximum supply current of 58 mA and 22 mA in disable mode. The device supports enable/disable functionality and functions across -40°C to 85°C. It is housed in a 6-SMD, no-lead package measuring 7.00 mm x 5.00 mm x 0.90 mm.

Feature Summary

• Utilizes silicon MEMS technology for robust clock generation
• Offers flexible programmability with blank configuration requiring user programming
• Provides low-jitter LVPECL output signals for high-speed applications
• Includes hardware enable and disable control for power management

Applications

• High-performance networking equipment
• Telecommunications infrastructure
• Industrial automation systems
• Test and measurement instruments

Procurement Notes

Verify the specific suffix codes against official Microchip documentation to ensure correct temperature range and packaging options. Confirm that the blank programmable nature aligns with your production programming capabilities. Check for AEC-Q100 automotive qualification if required for your specific application environment. Ensure compatibility with your system's voltage levels and signal integrity requirements before finalizing procurement.

Selection Notes

Select this component when LVPECL outputs are required for frequencies up to 460 MHz. Consider the ±25 ppm stability specification for timing-critical designs. Evaluate the 6-SMD package size constraints against your PCB layout. Verify that the 2.25 V to 3.6 V supply range matches your system power rails. Assess the need for programmable flexibility versus fixed-frequency alternatives.

Part Context

Part of the DSC8122 series, this oscillator represents Microchip's MEMS-based clock solutions. It complements other programmable oscillators like the DSC8121AL2, differing primarily in output type and frequency range. The series emphasizes reliability and performance for demanding electronic applications.

Replacement Considerations

DSC8122CL2T offers similar specifications but operates up to 105°C and features CMOS output instead of LVPECL. DSC8121AL2 provides CMOS output with a lower maximum frequency of 170 MHz. Verify electrical compatibility and pinout alignment before substitution.