- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1924 > IDT82P2821BH (IDT, Integrated Device Technology Inc)IC LIU T1/J1/E1 21+1CH 640-PBGA PDF資料下載
參數(shù)資料
| 型號(hào)： | IDT82P2821BH |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁數(shù)： | 105/151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(bào)檢測(cè)，驅(qū)動(dòng)器過流檢測(cè)和保護(hù)，LLOS 檢測(cè)，PRBSARB / IB 檢測(cè)和生成 |
| 其它名稱： | 82P2821BH |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁當(dāng)前第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁
IDT82P2821
21(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
Functional Description
57
February 6, 2009
3.5.8.4 Dual Loopback
Dual Loopback refers to the simultaneous implementation of Remote
Loopback and Digital Loopback. Two kinds of combinations are
supported:
Manual Remote Loopback + Manual Digital Loopback;
Manual Remote Loopback + Automatic Digital Loopback.
Note that when Digital Loopback is active, automatic Remote Loop-
back is unavailable as the pattern detection is within the digital loop.
In Dual Loopback mode, the data stream received from the line side
outputs from the RJA (if enabled), loops to the Waveform Shaper inter-
nally and does not output to the system side. The data stream to be
transmitted from the system side outputs from the TJA (if enabled),
loops to the Decoder (if enabled) internally and does not output to the
line side. LLOS, AIS detection in the receive path monitors the data
stream received from the line side. The BPV/CV, EXZ and pattern detec-
tion in the receive path monitors the digital looped data. The BPV/CV,
EXZ, SLOS, AIS and pattern detection in the transmit path monitors the
data stream input from the system side.
Manual Remote Loopback + Manual Digital Loopback
This combination of Dual Loopback is enabled when both manual
Remote Loopback and manual Digital Loopback are enabled. Manual
Remote Loopback is enabled by the RLP bit (b1, LOOP,...). Manual
Digital Loopback is enabled by the DLP bit (b2, LOOP,...).
In this condition, the priority of the diagnostic facilities in the receive
path is: pattern generation > digital looped data; the priority of the diag-
nostic facilities in the transmit path is: remote looped data > pattern
generation. AIS generation is disabled in both the receive path and the
transmit path.
Refer to Figure-35.
Manual Remote Loopback + Automatic Digital Loopback
This combination of Dual Loopback is enabled when both manual
Remote Loopback and automatic Digital Loopback are enabled. Manual
Remote Loopback is enabled by the RLP bit (b1, LOOP,...). Automatic
Digital Loopback is enabled when the pattern detection is assigned in
the transmit path (i.e., the PD_POS bit (b3, PD,...) is ‘1’) and the
AUTOLP bit (b3, LOOP,...) is ‘1’. The corresponding channel will enter
Digital Loopback when the activate IB code is detected in the transmit
path for more than 5.1 sec.; and will return from Digital Loopback when
the deactivate IB code is detected in the transmit path for more than 5.1
sec. Refer to section Inband Loopback (IB) Detection on page 50 for
details. When automatic Digital Loopback is active, setting the AUTOLP
bit (b3, LOOP,...) back to ‘0’ will also stop automatic Digital Loopback.
The setting of the PD_POS bit (b3, PD,...) should not be changed during
automatic Digital Loopback. The AUTOLP_S bit (b7, STAT0,...) indicates
the automatic Digital Loopback status.
In this condition, the priority of the diagnostic facilities in the receive
path is: pattern generation > digital looped data. AIS generation in both
the receive path and the transmit path, the pattern generation in the
transmit path are disabled.
Refer to Figure-36.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IDT82P2828BHG | IC LIU T1/J1/E1 28+1CH 640-PBGA |
| IDT82P2916BFG | IC LIU T1/E1/J1 16CH SH 484BGA |
| IDT82P5088BBG | IC LIU T1/E1/J1 OCTAL 256PBGA |
| IDT82V2041EPPG | IC LIU T1/J1/E1 1CH 44-TQFP |
| IDT82V2042EPFG | IC LIU T1/J1/E1 2CH SHORT 80TQFP |
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(dòng)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(dòng)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(dòng)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(dòng)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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。