PI6LC48P0301LE datasheet(9/12 Pages) PERICOM

Part #	PI6LC48P0301LE

Description	3-Output LVPECL Networking Clock Generator

PDF	12 Pages

Scroll/Zoom	100%

Manufacturer	PERICOM [Pericom Semiconductor Corporation]

Direct Link	http://www.pericom.com

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9 / 12 page

www.pericom.com

PI6LC48P0301

Rev. A

07/30/13

PI6LC48P0301

3-Output LVPECL Networking Clock Generator

LVPECL Test Circuit

Power Supply Filtering Techniques

As in any high speed analog circuitry, the power supply pins are vulnerable to random noise. To achieve optimum jitter perfor-

mance, power supply isolation is required. The PI6LC48P0301 provides separate power supplies to isolate any high switching noise

from the outputs to the internal PLL. VDD, VDDA and VDDO should be individually connected to the power supply plane through

vias, and 0.1μF bypass capacitors should be used for each pin. Figure below illustrates this for a generic VDD pin and also shows that

VDDA requires that an additional 10Ω resistor along with a 10μF bypass capacitor be connected to the VDDA pin.

50Ω

150Ω

0.01µF

Z = 50Ω

L = 0 ~ 10in

150Ω

Device

Z = 50Ω

50Ω

0.01µF

VDD

0.1µF

10µF

10Ω *

3.3V or 2.5V

VDDA

* If VDD is 2.5V, the resistor value will be di erent, see app note for details

13-0116

PI6LC48P0301LE Datasheet(PDF) 9 Page - Pericom Semiconductor Corporation