参数资料
型号: IDT82V3358EDG
厂商: IDT, Integrated Device Technology Inc
文件页数: 122/139页
文件大小: 0K
描述: IC PLL WAN SYNC ETHERNET 64TQFP
标准包装: 160
类型: 时钟/频率发生器,多路复用器
PLL:
主要目的: 以太网,SONET/SDH,Stratum
输入: CMOS,LVDS,PECL
输出: CMOS,LVDS,PECL
电路数: 1
比率 - 输入:输出: 2:4
差分 - 输入:输出: 是/是
频率 - 最大: 622.08MHz
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-TQFP 裸露焊盘
供应商设备封装: 64-TQFP-EP(10x10)
包装: 托盘
IDT82V3358
SYNCHRONOUS ETHERNET WAN PLL
Programming Information
83
May 19, 2009
IN_FREQ_READ_STS - Input Clock Frequency Read Value
Address: 42H
Type: Read
Default Value: 00000000
Bit
Name
Description
7 - 0
IN_FREQ_VALUE[7:0]
These bits represent a 2’s complement signed integer. If the value is multiplied by the value in the
FREQ_MON_FACTOR[3:0] bits (b3~0, 2EH), the frequency of an input clock with respect to the reference clock in ppm will
be gotten. The input clock is selected by the IN_FREQ_READ_CH[3:0] bits (b3~0, 41H).
The value in these bits is updated every 16 seconds, starting when an input clock is selected.
7
6543
210
IN_FREQ_VAL
UE7
IN_FREQ_VAL
UE6
IN_FREQ_VAL
UE5
IN_FREQ_VAL
UE4
IN_FREQ_VAL
UE3
IN_FREQ_VAL
UE2
IN_FREQ_VAL
UE1
IN_FREQ_VAL
UE0
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