参数资料
型号: IDT82P2828BHG
厂商: IDT, Integrated Device Technology Inc
文件页数: 116/154页
文件大小: 0K
描述: IC LIU T1/J1/E1 28+1CH 640-PBGA
标准包装: 5
类型: 线路接口装置(LIU)
规程: E1
电源电压: 3.13 V ~ 3.47 V
安装类型: 表面贴装
封装/外壳: 640-BGA 裸露焊盘
供应商设备封装: 640-PBGA-EP(31x31)
包装: 托盘
其它名称: 82P2828BHG
IDT82P2828
28(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
Functional Description
64
February 6, 2009
Figure-41 REFB Output Options in Normal Operation
Figure-42 REFA Output in LLOS Condition (When RCLKn Is Selected)
Recovered clock of one
of the 29 channels
JA_BYPAS = 1 ?
No
Clock is derived from the
output of RJA
Clock is derived from the output
of Rx Clock & Data Recovery
Yes
CLKB input
selected by REFB[4:0]
Output on REFB
In LLOS condition.
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 high level.
No
Yes
REFH = 1 ?
Yes
No
Output on REFA is free
running (locked to MCLK).
The frequency is 1.544 MHz
in T1 mode or 2.048 MHz in
E1 mode.
REFH = 1 ?
Yes
No
Note *: '000' and '011' are reserved for FREQ[2:0] when REFA is free running.
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