XRT8001 データシートの表示（PDF） - Exar Corporation

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XRT8001

WAN Clock for T1 and E1 Systems

Exar Corporation 

XRT8001

2.1 The Forward/Master Mode

In the Forward/Master Mode, the XRT8001 will accept

either an “N x 1.544MHz” or an “N x 2.048MHz” clock

signal via the FIN input pin (where: 1 < N < 16). From

this “reference signal” the XRT8001 will generate either

a “K x 56kHz” or a “K x 64kHz” clock signal (where: 1

< K < 32).

Figure 7, presents a simple illustration of the XRT8001

WAN Clock operating in the “Forward Master/Mode.”

N x 1.544MHz

or

N x 2.048MHz

Where 1 < N < 16

K x 56kHz

FIN

CLK1

or

K x 64kHz

Where 1 < K < 32

XRTXRT880001 01

WAN Clock

WAN Clock

CLK2

K x 56kHz

or

K x 64kHz

Where 1 < K < 32

Figure 7. Illustration of the XRT8001 WAN Clock

Operating in the Forward/Master Mode

Rev. 1.01

10

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