參數(shù)資料
型號: IDT82P2821BH
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 115/151頁
文件大?。?/td> 0K
描述: IC LIU T1/J1/E1 21+1CH 640-PBGA
標準包裝: 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
供應商設備封裝: 640-PBGA-EP(31x31)
包裝: 托盤
包括: 缺陷和警報檢測,驅動器過流檢測和保護,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
Functional Description
66
February 6, 2009
3.6.3
MCLK, MASTER CLOCK INPUT
MCLK provides a stable reference timing for the IDT82P2821. MCLK
should be a clock with +/-32 ppm (in T1/J1 mode) or +/-50 ppm (in E1
mode) accuracy. The clock frequency of MCLK is set by pins
MCKSEL[3:0] and can be N x 1.544 MHz or N x 2.048 MHz with 1
≤ N ≤
8 (N is an integer number). Refer to MCKSEL[3:0] pin description for
details.
If there is a loss of MCLK (duty cycle is less than 30% for 10 s), the
device will enter power down. In this case, both the receive and transmit
circuits are turned off. The pins on the line interface will be in High-Z
state. The pins on receive system interface will be in High-Z state or in
low level, as selected by the RHZ bit (b6, RCF0,...). The input on the
transmit system interface is ignored and the output on the transmit
system interface will be in High-Z state. Refer to Section 3.2.7 Receiver
If MCLK recovers after loss of MCLK the device will be reset auto-
matically.
3.6.4
XCLK, INTERNAL REFERENCE CLOCK INPUT
XCLK is derived from MCLK. For the respective channel, it is 1.544
MHz in T1/J1 mode or 2.048 MHz in E1 mode. XCLK is used as select-
able reference clock for
pattern /AIS generation
RCLKn in LLOS
Loss of TCLKn to determine Transmit Output High-Z.
相關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
相關代理商/技術參數(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)品培訓模塊:Lead (SnPb) Finish for COTS 產(chǎn)品變化通告:Product Discontinuation 06/Feb/2012 標準包裝: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 - 驅動器,接收器,收發(fā)器 系列:- 標準包裝:250 系列:- 類型:收發(fā)器 驅動器/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) 供應商設備封裝: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 - 驅動器,接收器,收發(fā)器 系列:- 標準包裝:250 系列:- 類型:收發(fā)器 驅動器/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) 供應商設備封裝: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