SY89425 Micrel Semiconductor, SY89425 Datasheet - Page 6

• Manufacturer Part Number: SY89425
• Description: DUAL SONET OC-12 CLOCK SYNTHESIZER
• Manufacturer: Micrel Semiconductor

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."
Micrel
PRODUCT ORDERING CODE
JITTER GENERATION
SY89425JC
SY89425JCTR
Ordering
Code
UI (rms)
0.01
SONET OC-12 Category II Jitter Generation Measurement
Package
J28-1
J28-1
Type
+20dB/decade
Commercial
Commercial
Operating
Range
Filter Characteristics
12kHz
Figure 1
6
Jitter Generation Requirement
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.
below.
Bellcore TA-NWT-000253 (Issue 2), section 5.6.5.2 "For
The characteristic of the measurement filter is shown
Frequency
(minimum)
5MHz
ClockWorks™
SY89425