PL586-25DC

Clock Buffers, Drivers Overview

The PL586-25DC is a low phase noise Voltage Controlled Crystal Oscillator (VCXO) IC designed for fundamental mode crystals operating between 120 MHz and 125 MHz. It features complementary LVPECL outputs and operates on a 3.3V ±10% supply. Key electrical specifications include a typical pull range of ±110 ppm with less than 5% linearity, integrated variable capacitors, and an output clock duty cycle of 45% to 55%. The device achieves a typical integrated jitter of 110 fs RMS and exhibits optimized phase noise performance at 122.88 MHz.

Clock Buffers, Drivers Feature Summary

• Non-multiplier VCXO design optimized for high-performance crystal oscillators in the 120 MHz to 125 MHz range
• Low phase noise characteristics: -70 dBc/Hz at 10 Hz and -155 dBc/Hz at 100 kHz (at 122.88 MHz)
• High pullability of ±110 ppm with linearity under 5%
• Complementary LVPECL outputs with integrated variable capacitors

Clock Buffers, Drivers Applications

• SONET systems
• WiMax infrastructure
• CPRI and OBSAI interfaces
• Fiber Channel applications

Clock Buffers, Drivers Procurement Notes

Verify the current manufacturer status, as the datasheet originates from Micrel Inc., which was acquired by Microchip Technology. Confirm that the PL586-25DC designation remains active and matches the specific die waffle pack packaging option indicated by the 'D' suffix. Ensure compatibility with commercial temperature grades (0°C to 70°C) if required by the design environment.

Clock Buffers, Drivers Selection Notes

Select the PL586-25 variant when the Output Enable (OE) pin defaults to enabling the outputs via an internal 60 kΩ pull-up resistor. Choose the PL586-28 variant if the OE pin requires a default enabled state via an internal pull-down resistor. Ensure the application utilizes fundamental mode AT-cut crystals with a recommended motional capacitance (C1) of 6.0 fF to achieve the specified ±100 ppm frequency pulling capability.

Clock Buffers, Drivers Part Context

This component belongs to the PL586 series of low phase noise VCXOs. The PL586-25DC specifically denotes the die version packaged in a waffle pack, intended for direct integration into custom oscillator modules or hybrid assemblies rather than standard surface-mount PCB mounting.

Clock Buffers, Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify cross-reference availability through official Microchip Technology channels.