PL586-18DC

Clock Buffers, Drivers Overview

The PL586-18DC is a non-multiplier Voltage Controlled Crystal Oscillator (VCXO) IC designed for fundamental mode crystals operating between 75MHz and 125MHz. It features complementary LVPECL outputs, a 3.3V ±10% supply voltage, and an integrated variable capacitor. The device achieves a typical pull range of ±125ppm with less than 5% linearity. Phase noise performance is below -150dBc/Hz at 100kHz, with RMS phase jitter of 120fs at 125MHz. The component is available in die form with specific output enable logic configurations.

Clock Buffers, Drivers Feature Summary

• Non-multiplier VCXO design for high-performance crystal oscillators
• Very low phase noise (<-150dBc/Hz at 100kHz) and low phase jitter (120fs RMS at 125MHz)
• High pull range of ±125ppm with linearity <5%
• Complementary LVPECL outputs with integrated variable capacitors

Clock Buffers, Drivers Applications

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

Clock Buffers, Drivers Procurement Notes

Verify the manufacturer origin, as the datasheet identifies Micrel Inc., while the brand is listed as Microchip Technology. Confirm that the 'DC' suffix denotes Die packaging in Waffle Pack format. Ensure the specific '-18' variant is selected for the correct Output Enable logic configuration before procurement.

Clock Buffers, Drivers Selection Notes

Select the PL586-18DC over the PL586-15DC based on the required Output Enable logic state. The PL586-18 defaults to Outputs Enabled when OE is Low, whereas the PL586-15 defaults to Enabled when OE is High. Both share identical electrical specifications and package dimensions.

Clock Buffers, Drivers Part Context

This component belongs to the PL586 family of low phase noise VCXOs. The PL586-15 and PL586-18 variants differ only in their internal pull-up/pull-down resistors for the Output Enable pin. The device is manufactured by Micrel Inc. and is intended for use in high-end clocking applications requiring precise frequency control.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The PL586-15DC is functionally similar but has different OE logic. No other direct replacements are documented.

Clock Buffers, Drivers FAQ

What is the default state of the outputs for the PL586-18?

For the PL586-18, the outputs are enabled by default when the OE pin is Low (0). An internal 60KΩ pull-down resistor sets this default state.

What is the maximum operating temperature for the PL586-18DC?

The ambient operating temperature range is -40°C to 85°C. The commercial grade temperature range specified for ordering is 0°C to 70°C.

How does the PL586-18 differ from the PL586-15?

The primary difference is the Output Enable logic. The PL586-18 uses an internal pull-down resistor (OE=0 enables outputs), while the PL586-15 uses an internal pull-up resistor (OE=1 enables outputs).