XRT75R06IB datasheet(39/63 Pages) EXAR

Part #	XRT75R06IB

Description	SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR

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Manufacturer	EXAR [Exar Corporation]

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XRT75R06

SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR

REV. 1.0.0

5.1.2

E3 Jitter Tolerance Requirements

ITU-T G.823 standard specifies that the clock and data recovery unit must be able to tolerate jitter up to certain

specified limits. Figure 28 shows the tolerance curve.

As shown in the Figures above, in the jitter tolerance measurement, the dark line indicates the minimum level

of jitter that the E3/DS3/STS-1 compliant component must tolerate. Table 8 below shows the jitter amplitude

versus the modulation frequency for various standards.

FIGURE 27. INPUT JITTER TOLERANCE FOR DS3/STS-1

FIGURE 28. INPUT JITTER TOLERANCE FOR E3

0.01

0.03

1.5

0.3

0.15

JITTER FREQUENCY (kHz)

0.3

100

0.1

GR-253

STS-1

GR-499

Cat II

GR-499

Cat I

XRT75R06

0.1

1.5

JITTER FREQUENCY (kHz)

800

ITU-T G.823

0.3

XRT75R06

XRT75R06IB Datasheet(PDF) 39 Page - Exar Corporation