Figure-40 REFA Output Options in Nor" />
參數(shù)資料
型號: IDT82P2828BHG
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 115/154頁
文件大?。?/td> 0K
描述: IC LIU T1/J1/E1 28+1CH 640-PBGA
標準包裝: 5
類型: 線路接口裝置(LIU)
規(guī)程: E1
電源電壓: 3.13 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 640-BGA 裸露焊盤
供應商設備封裝: 640-PBGA-EP(31x31)
包裝: 托盤
其它名稱: 82P2828BHG
IDT82P2828
28(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
Functional Description
63
February 6, 2009
Figure-40 REFA Output Options in Normal Operation
Recovered clock of one
of the 29 channels
JA_BYPAS = 1 ?
No
Clock is derived from the
output of RJA
Clock is derive from the output
of Rx Clock & Data Recovery
Yes
CLKA input
selected by REFA[4:0]
FS_BYPAS = 1 ?
No
Pass through a
Frequency Synthesizer
FREE = 1 ?
Output on REFA is free
running (locked to MCLK).
The frequency is
programmed in FREQ[2:0] *.
Output on REFA is locked to
the selected clock source.
The frequency is
programmed in FREQ[2:0].
Output the selected clock on
REFA
Yes
No
Yes
Note *: '000' and '011' are reserved for FREQ[2:0] when REFA is free running.
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