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LXT359LE PDF预览

LXT359LE

更新时间： 2024-11-25 20:02:43
品牌 Logo 应用领域
LevelOne PC电信电信集成电路
页数 文件大小 规格书
36页 1416K
描述
PCM Transceiver, 1-Func, PQFP44, LQFP-44

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LXT359LE 数据手册

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DATA SHEET  
JUNE 1999  
Revision 2.1  
LXT359  
Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU  
or NTU/ISDN PRI Applications  
General Description  
Features  
• Fully integrated transceiver for Long or Short-Haul  
T1 interfaces  
The LXT359 is a T1 Primary rate, combination transceiver  
for T1 long and short-haul applications. It operates over (22  
AWG) twisted-pair cable for 0 to 6 kft and offers Line Build-  
Outs and pulse equalization settings for all T1 applications  
including D4 Channel bank.  
• Crystal-less digital jitter attenuation  
• Select either transmit or receive path  
• No crystal or high speed external clock required  
• Meet or exceed specifications in ANSI T1.403 and  
T1.408; ITU I.431, T1.102 and AT&T Pub 62411  
The LXT359 provides both a serial port for microprocessor  
control and a hardware control mode for stand alone oper-  
ation. It incorporates crystal-less digital jitter attenuation  
in either the transmit or receive data path starting at 3 Hz.  
B8ZS encoding/decoding and unipolar or bipolar data I/O  
are available. It provides loss of signal monitoring and a  
variety of diagnostic loopback modes.  
• Selectable receiver sensitivity – fully restores the  
received signal after transmission through a cable  
with attenuation of either 0 to 26 dB, or 0 to 36 dB  
@ 772 kHz  
• Five Pulse Equalization Settings for T1 short-haul  
applications (DSX-1)  
The LXT359 uses an advanced double-poly, double-metal  
fabrication process and requires only a single 5-volt power  
supply.  
• 6V output signal for D4 Channel bank  
• Four Line Build-Outs for T1 long-haul applications  
from 0 dB to -22.5 dB  
• LOS processor per ANSI T1.231  
Applications  
• Selectable unipolar or bipolar data I/O and  
B8ZS encoding/decoding  
• HDSL access systems  
• Local, remote, analog and inband network loopback  
generation and detection  
• ISDN Primary Rate Interface (ISDN PRI)  
• CSU interface to T1 service  
• Serial-interface for microprocessor control  
• T1 LAN/WAN bridge/routers  
• Available in 28-pin PLCC, 44-pin PQFP and 44-pin  
LQFP packages  
• D4 Channel bank and newer generation DLC  
LXT359  
Block Diagram  
Refer to www.level1.com for most current information.  
)
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 		Integrated T1/E1 LH/SH Transceivers for DS1/DSX-1/CSU or NTU/ISDN PRI Applications
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LXT360LH LevelOne

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 		PCM Transceiver, 1-Func, PQFP44, LQFP-44
LXT360NE LevelOne

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 		PCM Transceiver, 1-Func, CEPT PCM-30/E-1, CMOS, PDIP28,
LXT360PE ETC

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 		PCM TRANSCEIVER|SINGLE|CEPT PCM-30/E-1|CMOS|LDCC|28PIN|PLASTIC
LXT360QE LevelOne

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 		Integrated T1/E1 LH/SH Transceivers for DS1/DSX-1/CSU or NTU/ISDN PRI Applications
LXT360QH LevelOne

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 		PCM Transceiver, 1-Func, PQFP44, PLASTIC, QFP-44
LXT360QI LevelOne

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 		PCM Transceiver, 1-Func, PQFP44, PLASTIC, QFP-44

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