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PM4318 参数 Datasheet PDF下载

PM4318图片预览
型号: PM4318
PDF下载: 下载PDF文件 查看货源
内容描述: 八进制E1 / T1 / J1线路接口设备 [OCTAL E1/T1/J1 LINE INTERFACE DEVICE]
分类和应用:
文件页数/大小: 244 页 / 2135 K
品牌: PMC [ PMC-SIERRA, INC ]
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PRELIMINARY  
PM4318 OCTLIU  
DATASHEET  
PMC- 2001578  
ISSUE 3  
OCTAL E1/T1/J1 LINE INTERFACE DEVICE  
Figure 12 – TJAT Minimum Jitter Tolerance vs. XCLK Accuracy  
70  
68  
66  
65  
JAT MIN.  
JITTER  
TOLERANCE,  
UI pp  
61  
60  
55  
MAX. FREQUENCY  
100  
200  
0
250  
32  
300  
354  
Hz  
OFFSET  
XCLK ACCURACY  
100 ,± ppm  
Jitter Transfer  
For T1 applications, the output jitter for jitter frequencies from 0 to 5.7 Hz (7.6 Hz for E1) is no  
more than 0.1 dB greater than the input jitter, excluding residual jitter. Jitter frequencies above  
5.7 Hz (7.6 Hz for E1) are attenuated at a level of 6 dB per octave, as shown in Figure 13. The  
figure is valid for the case where the N1 = 2FH in the TJAT Jitter Attenuator Divider N1 Control  
register and N2 = 2FH in the TJAT Divider N2 Control register.  
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE  
42