ICS8402AYILF datasheet(11/19 Pages) IDT

Part #	ICS8402AYILF

Description	350MHZ, CRYSTAL-TO-LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PDF	19 Pages

Scroll/Zoom	100%

Manufacturer	IDT [Integrated Device Technology]

Direct Link	http://www.idt.com

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11 / 19 page

ICS8402I

350MHZ, CRYSTAL-TO-LVCMOS/LVTTL FREQUENCY SYNTHESIZER

IDT™ / ICS™ LVCMOS/LVTTL FREQUENCY SYNTHESIZER

ICS8402AYI REV. A OCTOBER 16, 2007

Parameter Measurement Information, continued

Output Rise/Fall Time

Application Information

Power Supply Filtering Technique

As in any high speed analog circuitry, the power supply pins are

vulnerable to random noise. The ICS8402I 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 bypass

capacitors should be used for each pin. To achieve optimum jitter

performance, power supply isolation is required. Figure 2

illustrates how a 10

Ω resistor along with a 10µF and a 0.01µF

bypass capacitor should be connected to each VDDA pin.

Figure 2. Power Supply Filtering

Clock

Outputs

20%

80%

20%

t F

VDD

VDDA

3.3V

Ω

10µF

.01µF

ICS8402AYILF Datasheet(PDF) 11 Page - Integrated Device Technology