参数资料
型号: SY87700VZC
厂商: Micrel Inc
文件页数: 11/15页
文件大小: 0K
描述: IC CLOCK/DATA REC 175MBPS 28SOIC
标准包装: 27
系列: AnyRate®
类型: 时钟和数据恢复(CDR),多路复用器
PLL:
主要目的: 以太网,SONET/SDH,ATM 应用
输入: PECL
输出: PECL
电路数: 1
比率 - 输入:输出: 1:3
差分 - 输入:输出: 是/是
频率 - 最大: 175Mbps
电源电压: 3.15 V ~ 5.25 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC
包装: 管件
SY87700V
5
Micrel, Inc.
M9999-073008
hbwhelp@micrel.com or (408) 955-1690
CHARACTERISTICS
Performance
The SY87700V PLL complies with the jitter specifications
proposed for SONET/SDH equipment defined by the Bellcore
Specifications: GR-253-CORE, Issue 2, December 1995 and
ITU-T Recommendations: G.958 document, when used with
differential inputs and outputs.
Input Jitter Tolerance
Input jitter tolerance is defined as the peak-to-peak
amplitude of sinusoidal jitter applied on the input signal that
causes an equivalent 1dB optical/electrical power penalty.
SONET input jitter tolerance requirement condition is the
input jitter amplitude which causes an equivalent of 1dB
power penalty.
Figure 1. Input Jitter Tolerance
OC/STS-N
f0
f1
f2
f3
ft
Level
(Hz)
(kHz)
3
10
30
300
6.5
65
15
1.5
0.40
f0
f1
f2
f4
ft
Sinusoidal
Input
Jitter
Amplitude
(UI
p-p)
Frequency
-20dB/decade
A
Figure 2. Jitter Transfer
OC/STS-N
fc
P
Level
(kHz)
(dB)
3
130
0.1
0.1
-20
fc
Jitter Transfer (dB)
Frequency
-20dB/decade
Acceptable
Range
Jitter Transfer
Jitter transfer function is defined as the ratio of jitter on
the output OC-N/STS-N signal to the jitter applied on the
input OC-N/STS-N signal versus frequency. Jitter transfer
requirements are shown in Figure 2.
Jitter Generation
The jitter of the serial clock and serial data outputs shall
not exceed .01 U.I. rms when a serial data input with no
jitter is presented to the serial data inputs.
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