DS4625P+125/125

Programmable Timers And Oscillators Overview

The DS4625P+125/125 is a dual-output, low-jitter clock oscillator from Analog Devices / Maxim Integrated. It generates two independent LVPECL clock signals at 125MHz each. The device integrates an AT-cut crystal, an oscillator, and a low-noise phase-locked loop (PLL) within a 5.0mm x 3.2mm surface-mount LCCC package. It operates on a single +3.3V ±10% supply voltage with a typical operating current of 90mA when unloaded. The unit supports an operating temperature range of -40°C to +85°C and features an active-high output enable pin with an internal pullup resistor.

Programmable Timers And Oscillators Feature Summary

• Dual LVPECL outputs configured for identical 125MHz frequency generation
• Integrated AT-cut crystal, oscillator, and low-noise PLL in a 10-pin LCCC package
• Low phase jitter performance with typical RMS value < 0.7ps (12kHz to 20MHz)
• +3.3V ±10% single-supply operation with active-high OE control

Programmable Timers And Oscillators Applications

• XGMII Clock Oscillator
• InfiniBand SM applications
• SAS/SATA interfaces
• PCIe systems
• 1GbE/10GbE networking equipment

Programmable Timers And Oscillators Procurement Notes

Verify component authenticity through authorized distributors or the manufacturer directly. Confirm RoHS compliance status via the datasheet lead finish specifications (JESD97 category e4). Check for product discontinuance notices as this series may be subject to end-of-life transitions. Ensure ordering suffixes match required frequency combinations and temperature ranges.

Programmable Timers And Oscillators Selection Notes

Select the DS4625P+125/125 specifically for designs requiring synchronized 125MHz LVPECL clocks. Verify that the system power supply remains within the 2.97V to 3.63V range to maintain frequency stability. Consider the 10-LCCC package dimensions (5.0mm x 3.2mm) for PCB layout constraints. Ensure termination resistors are set to 50Ω at PECL_BIAS (VCC - 2.0V) for proper signal integrity.

Programmable Timers And Oscillators Part Context

This component belongs to the DS4-XO Series of clock oscillators manufactured by Analog Devices / Maxim Integrated. It is part of a family offering various standard frequency combinations ranging from 100MHz to 200MHz. The 'P+' suffix indicates a lead-free/RoHS-compliant package with JESD97 category e4 (Au over Ni) lead finish compatible with both lead-based and lead-free soldering processes.

Programmable Timers And Oscillators Replacement Considerations

Direct replacements must provide dual LVPECL outputs at 125MHz with similar jitter characteristics (< 0.7ps RMS). Compatible alternatives include other parts from the DS4625 family with different frequency pairs (e.g., DS4625P+100/100) if frequency requirements allow. Cross-referencing pinouts and thermal pad connections is essential for physical compatibility.