PM7344 datasheet(68/293 Pages) PMC

부품명	PM7344

상세설명	SATURN QUAD T1/E1 MULTI-PHY USER NETWORK INTERFACE DEVICE

PDF	293 Pages

Scroll/Zoom	100%

제조업체	PMC [PMC-Sierra, Inc]

홈페이지	http://www.pmc-sierra.com

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68 / 293 page

PM7344 S/UNI-MPH

DATA SHEET

PMC-950449

ISSUE 6

MULTI-PHY USER NETWORK INTERFACE

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Figure 10

- E1 Jitter Tolerance

100

1.0

0.1

100

10k

Jitter Frequency, Hz

Jitter

Amplitude,

UI pp

0.01

100k

acceptable

ITU G.823

unacceptable

Region

0.2

DJAT

minimum

tolerance

1.5

2.4 k

1 8k

The accuracy of the XCLK frequency and that of the DJAT PLL reference input

clock used to generate the jitter-free TCLKO have an effect on the minimum jitter

tolerance. For T1 interfaces, the DJAT PLL reference clock accuracy can be

±200 Hz from 1.544 MHz, and the XCLK input accuracy can be ±100 ppm from

37.056 MHz. For E1 interfaces, the PLL reference clock accuracy can be ± 103

Hz from 2.048 MHz, and the XCLK input accuracy can be ±100 ppm from 49.152

MHz. The minimum jitter tolerance for various differences between the

frequency of PLL reference clock and XCLK/24 are shown in Figure 11 and

Figure 12.

PM7344 데이터시트(PDF) 68 Page - PMC-Sierra, Inc