XRT8001(1999) View Datasheet(PDF) - Exar Corporation

Part Name

Description

Manufacturer

XRT8001
(Rev.:1999)

XRT8001 WAN Clock

Exar Corporation 

XRT8001

Preliminary

The Fractional T1/E1 Reverse/Master Mode

In the Fractional T1/E1 Reverse/Master Mode, the

XRT8001 Device will accept either a “P x 56kHz” or a

“P x 64kHz” clock signal via the FIN input pin (where:

1 < P < 32). From this “reference signal” the XRT8001

device will generate either a 1.544MHz or a 2.048MHz

clock signal.

Figure 5, presents a simple illustration of the XRT8001

WAN Clock device operating in the “Fractional T1/E1

Reverse/Master" Mode.

P x 56kHz

or

P x 64kHz

Where: 1 < P < 32

FIN

CLK1

XRXRTT88000011

WAWNANCClolocckk

CLK2

1.544MHz

or

2.048MHz

1.544MHz

or

2.048MHz

Figure 5. Illustration of the XRT8001 WAN Clock Device

Operating in the “Fractional T1/E1 Reverse/Master” Mode

Rev. P1.00

10

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