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參數(shù)資料
| 型號： | AN-03 |
| 英文描述： | SONET OC-12 Jitter Measurement |
| 中文描述： | 與SONET OC - 12抖動測量 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大小： | 56K |
| 代理商： | AN-03 |
APPLICATION NOTE
AN-03
4
Micrel
JITTER TRANSFER (continued)
Test Setup for Measuring Jitter Transfer
on the SY69712 Receive
SONET OC-12 Category II Jitter
Transfer Function
Measuring Jitter Transfer on the SY69712 Receive
Jitter transfer is measured at the CKE622 (recovered
clock) output.
Figure 3b
SONET OC-12 Category II Input Jitter Mask
for Jitter Transfer and Jitter Tolerance
Measurement
Figure 5
Figure 4
Jitter
Gain
(dB)
0.1
500kHz
-20db/decade
-20
Frequency
Acceptable
Range
A
15
1.5
0.15
10
30
300
25kHz
250kHz
Sinusoidal
Input
Jitter
Amplitude
(p-p)
Frequency
-20db/decade
-20db/decade
Figure 3b shows the test setup for measuring jitter transfer
on the SY69712 receive.
CH 1
CH 2
Filter
CKE622 (recovered clock)
SDIN
SY69712
Filter
622MHz
HP 3325B Synthesizer
Function Generator
Modulation Source
HP 3325B Pattern Generator &
HP 70311A Clock Source
HP 70820A Microwave Transition Analyzer &
HP 70004A Display
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