參數(shù)資料
型號(hào)： IDT82P2521BH
廠商： IDT, Integrated Device Technology Inc
文件頁數(shù)： 97/147頁
文件大?。?/td> 0K
描述： IC LIU E1 21+1CH SHORT 640-PBGA
標(biāo)準(zhǔn)包裝： 5
類型： 線路接口裝置（LIU）
規(guī)程： E1
電源電壓： 3.135 V ~ 3.465 V
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
其它名稱： 82P2521BH
IDT82P2521
21(+1) CHANNEL HIGH-DENSITY E1 LINE INTERFACE UNIT
Functional Description
53
December 7, 2005
3.4.8
LOOPBACK
There are four kinds of loopback:
Analog Loopback
Remote Loopback
Digital Loopback
Dual Loopback
Refer to Figure-1 for loopback location.
3.4.8.1 Analog Loopback
Analog Loopback is enabled by the ALP bit (b0, LOOP,...). The data
stream to be transmitted on the TTIPn/TRINGn pins is internally looped
to the RTIPn/RRINGn pins.
In Analog Loopback mode, the data stream to be transmitted is still
output to the line side, while the data stream received from the line side
is covered by the Analog Loopback data.
Anytime when Analog Loopback is set, the other loopbacks (i.e.,
Digital Loopback and Remote Loopback) are disabled.
In Analog Loopback, the priority of the diagnostic facilities in the
receive path is: pattern generation > looped data. AIS generation is
disabled in both the receive path and the transmit path. Refer to Figure-
Figure-30 Priority Of Diagnostic Facilities During Analog Loopback
Tx path
BPV/CV, EXZ,
SLOS, AIS, pattern
detection
Pattern generation
AIS generation
X
Rx path
LLOS detection
AIS generation
X
BPV/CV, EXZ,
AIS, pattern
detection
Pattern generation
Analog
Loopback
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IDT82P2521BHBLANK 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:21(1) Channel High-Density E1 Line Interface Unit
IDT82P2521BHG 功能描述:IC LIU E1 21+1CH SHORT 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)
IDT82P2521BHGBLANK 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:21(1) Channel High-Density E1 Line Interface Unit
IDT82P2808 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:8(+1) Channel High-Density T1/E1/J1 Line Interface Unit
IDT82P2808BB 功能描述:IC LIU T1/J1/E1 8+1CH 416-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:1,000 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-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR)
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