DS4312P+

Programmable Timers And Oscillators Overview

The DS4312P+ is a ceramic surface-mount crystal oscillator from the Maxim DS4-XO series. It generates a nominal output frequency of 312.5MHz using fundamental crystal and PLL technology. The device features LVPECL differential outputs, operates on a 3.3V ±5% supply voltage, and provides low phase jitter (<0.7ps RMS from 12kHz to 20MHz). It is housed in a compact 10-pin LCCC package measuring 5.0mm x 3.2mm x 1.49mm and supports an operating temperature range of -40°C to +85°C.

Programmable Timers And Oscillators Feature Summary

• Low Phase Jitter: <0.7ps RMS integrated phase jitter measured from 12kHz to 20MHz.
• LVPECL Output Driver: Provides differential LVPECL signals with defined rise/fall times of 200ps.
• Compact Package: Available in a 10-pin LCCC ceramic package (5.0mm x 3.2mm x 1.49mm) for space-constrained designs.
• Frequency Stability: Maintains ±50ppm total stability over temperature, aging, load, and supply variations.

Programmable Timers And Oscillators Applications

• InfiniBand systems
• SONET/SDH networks
• Ethernet and 10GbE interfaces
• BPON/GPON applications

Programmable Timers And Oscillators Procurement Notes

Verify the ordering suffix 'P+' indicates LVPECL output type, as the 'D+' variant offers LVDS. Confirm RoHS compliance and lead-free status via manufacturer documentation. Ensure PCB land patterns match the 10-pin LCCC outline (Document No. 21-0389). Check datasheet revision history for updates regarding pin descriptions or electrical characteristics before finalizing procurement.

Programmable Timers And Oscillators Selection Notes

Select the DS4312P+ when a 312.5MHz clock signal with LVPECL outputs is required. Verify that the system can accommodate the typical operating current of 70mA (unloaded) at 3.3V. Ensure the application environment stays within the -40°C to +85°C temperature range. Consider the DS4312D+ if LVDS outputs are preferred instead of LVPECL.

Programmable Timers And Oscillators Part Context

The DS4312P+ belongs to the Maxim DS4-XO series of crystal oscillators, which includes models like DS4125, DS4311, and DS4622. These devices share a common 10-pin LCCC package and utilize BiPOLAR SiGe process technology. The series is designed for high-performance timing applications requiring tight jitter and phase noise specifications.

Programmable Timers And Oscillators Replacement Considerations

The DS4312D+ is a direct functional substitute offering identical electrical parameters but with LVDS outputs instead of LVPECL. Other frequencies in the DS4-XO series (e.g., DS4311P+, DS4622P+) share the same package and form factor but operate at different nominal frequencies.