DSC2122FI1-F0006T

Clock Generators, PLLs, Frequency Synthesizers Overview

The DSC2122FI1-F0006T is a low-jitter, I2C programmable dual LVPECL oscillator utilizing silicon MEMS technology. It operates within a supply voltage range of 2.25 V to 3.6 V and supports frequencies from 2.3 MHz to 460 MHz. The device features ±50 ppm frequency stability and typical RMS phase jitter below 1 ps. Packaged in a 14-pin 3.2x2.5 mm QFN, it includes two independent LVPECL outputs with an enable function. The 'I' suffix indicates industrial temperature grade (-40°C to +85°C), while 'F0006T' specifies the pre-programmed default frequency pair and tape & reel packaging.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual LVPECL outputs generated via independent 8-bit programmable dividers from an internal PLL
• Frequency programming capability through I2C interface with selectable default pairs via control pin
• High shock and vibration immunity qualified to MIL-STD-883 standards

Clock Generators, PLLs, Frequency Synthesizers Applications

• Storage Area Networks (SATA, SAS, Fibre Channel)
• Passive Optical Networks (EPON, GPON, 10G-PON)
• Ethernet (1G, 10GBASE-T/KR/LR/SR, FCoE)

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering code against manufacturer documentation to confirm the exact default frequency configuration associated with the F0006 suffix. Ensure the selected temperature grade matches the operational environment requirements. Confirm that the I2C interface compatibility aligns with the system controller specifications before finalizing procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component for applications requiring precise timing with low jitter and high reliability in harsh environments. The I2C interface allows for flexible frequency adjustments during production or field deployment. Consider the 3.2x2.5 mm footprint for space-constrained designs. Verify power supply filtering requirements as specified in the datasheet notes.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the DSC2122/DSC2222 series of programmable oscillators manufactured by Microchip Technology (formerly Discera). The series leverages silicon MEMS resonators to replace traditional quartz crystals, offering superior resistance to shock and vibration. The DSC2122 variant specifically utilizes the I2C bus for programming, distinguishing it from the SPI-based DSC2222.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other members of the DSC2122 family with different frequency configurations or temperature grades. Cross-reference package dimensions and pinout compatibility when substituting with similar MEMS oscillators from other manufacturers.