參數(shù)資料
型號(hào): SY89425JCTR
廠商: MICREL INC
元件分類: 數(shù)字傳輸電路
英文描述: DUAL SONET OC-12 CLOCK SYNTHESIZER
中文描述: ATM/SONET/SDH SUPPORT CIRCUIT, PQCC28
封裝: PLASTIC, LCC-28
文件頁數(shù): 6/8頁
文件大?。?/td> 93K
代理商: SY89425JCTR
6
ClockWorks
SY89425
Micrel
JITTER GENERATION
Jitter Generation Definition
Bellcore TR-NWT-000499 (Issue 4), section 7.3.3 "Jitter
generation is the process whereby jitter appears at the output
port of an individual unit of digital equipment in the absence of
applied input jitter."
Jitter Generation Requirement
Bellcore TA-NWT-000253 (Issue 2), section 5.6.5.2 "For
Category II interfaces, jitter generation shall not exceed 0.01
UI rms. For OC-N and STSX-N interfaces, a high-pass
measurement filter with a 12kHz cutoff frequency shall be
used." The low-pass cutoff frequency of the measurement
filter shall be higher than 5MHz.
The characteristic of the measurement filter is shown
below.
SONET OC-12 Category II Jitter Generation Measurement
Filter Characteristics
Figure 1
Ordering
Code
Package
Type
Operating
Range
SY89425JC
J28-1
Commercial
SY89425JCTR
J28-1
Commercial
PRODUCT ORDERING CODE
+20dB/decade
UI (rms)
0.01
12kHz
Frequency
5MHz
(minimum)
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