參數(shù)資料
型號： IDT82P2821BH
廠商： IDT, Integrated Device Technology Inc
文件頁數(shù)： 134/151頁
文件大?。?/td> 0K
描述： IC LIU T1/J1/E1 21+1CH 640-PBGA
標(biāo)準(zhǔn)包裝： 5
功能： 線路接口單元（LIU）
接口： E1，J1，T1
電路數(shù)： 1
電源電壓： 1.8V, 3.3V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 640-BGA 裸露焊盤
供應(yīng)商設(shè)備封裝： 640-PBGA-EP（31x31）
包裝： 托盤
包括： 缺陷和警報檢測，驅(qū)動器過流檢測和保護(hù)，LLOS 檢測，PRBSARB / IB 檢測和生成
其它名稱： 82P2821BH
IDT82P2821
21(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
Programming Information
83
February 6, 2009
3
FREE
This bit is valid only when the selected clock source for REFA passes the internal Frequency Synthesizer
In normal operation:
0: Output the clock which is locked to the selected clock source and the frequency is programmed in the FREQ[2:0] bits (b2~0,
REFCF). (default)
1: Output free running clock which is locked to MCLK and the frequency is programmed in the FREQ[2:0] bits (b2~0, REFCF).
When the selected clock source is lost, this bit, together with the FS_BYPAS bit (b4, REFCF) and the REFH bit (b5, REFCF),
controls the output on REFA:
2 - 0
FREQ[2:0]
These bits are valid only when the Frequency Synthesizer on REFA is enabled. These bits determine the output clock frequency.
Selected Clock
Source
FS_BYPA
S
FREE
REFH
Output On REFA
CLKA
0
(don’t-
care)
High level.
1
Free running clock, whose frequency is programmed
in the FREQ[2:0] bits (b2~0, REFCF).
1
(don’t-care)
High level.
Recovered clock of
one of the 22 chan-
nels.
0
Free running clock, whose frequency is programmed
in the FREQ[2:0] bits (b2~0, REFCF).
1
High level.
1
(don’t-
care)
Free running clock, whose frequency is programmed
in the FREQ[2:0] bits (b2~0, REFCF).
1
(don’t-
care)
0
Free running clock, whose frequency is 1.544 MHz in
T1 mode or 2.048 MHz in E1 mode.
1
High level.
FREQ[2:0]
Output when FS_BYPAS=0, FREE=0 and the
Frequency Synthesizer uses RCLKn or CLKA as
reference clock
Output when FS_BYPAS=0 and FREE=1
(the Frequency Synthesizer is free running)
0 0 0
1.544 MHz if the selected clock source is 1.544 MHz; or
2.048 MHz if the selected clock source is 2.048 MHz
-
0 0 1
8 kHz
0 1 0
64 kHz
0 1 1
Reserved
-
1 0 0
4.096 MHz
1 0 1
8.192 MHz
1 1 0
19.44 MHz
1 1 1
32.768 MHz
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IDT82P2821BHG 功能描述:IC LINE INTERFACE UNIT 640-PBGA RoHS:是 類別:集成電路 (IC) >> 接口 - 電信 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS 產(chǎn)品變化通告:Product Discontinuation 06/Feb/2012 標(biāo)準(zhǔn)包裝:750 系列:*
IDT82P2828 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:28(+1) Channel High-Density T1/E1/J1 Line Interface Unit
IDT82P2828BH 功能描述:IC LIU T1/J1/E1 28+1CH 640-PBGA RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR)
IDT82P2828BHG 功能描述:IC LIU T1/J1/E1 28+1CH 640-PBGA RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR)
IDT82P2916 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:16-Channel High-Density T1/E1/J1 Line Interface Unit
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