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LE57D111JC

更新时间： 2024-11-25 23:46:07
品牌 Logo 应用领域
其他 - ETC 电信集成电路
页数 文件大小 规格书
22页 530K
描述
Telecommunication IC

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LE57D111JC 数据手册

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P R E L I M I N A R Y  
Dual SLIC  
Dual Subscriber Line Interface Circuit  
Le57D11 Device  
APPLICATIONS  
DESCRIPTION  
Ideal for low cost, high performance line card  
The innovative Le57D11 Dual Channel SLIC device was  
designed for high-density POTS applications requiring a small  
footprint SLIC device with significant power savings. By  
combining the line interface of two channels into one SLIC  
device, the Le57D11 device enables the design of a low cost,  
high performance, and fully programmable line interface for  
multiple country applications worldwide. The on-chip Thermal  
Management (TMG) feature allows for significantly reduced  
power dissipation on the device. Another benefit is that it is  
offered in space-saving package types 44-pin eTQFP and 32-  
pin PLCC. The small footprint of the SLIC device allows  
designers to save board space, increasing the density of lines  
on the board. The Le57D11 device is also designed to  
significantly reduce the number of external components  
required for line card design.  
applications (CO, DLC)  
Meets requirements for countries such as: China,  
Korea, Japan, Taiwan, and Australia  
Fulfills the following China specifications: GF002-  
9002.1  
FEATURES  
Dual Channel SLIC device with small footprint  
On-chip Thermal Management (TMG) feature in normal  
and reverse polarity  
Control states: Active (normal and reversal polarity),  
Standby, and Disconnect  
On-hook transmission  
Low standby power  
–39 V to –58 V battery operation  
Two-wire impedance set by single external impedance device provides a programmable line circuit that can be  
Per channel fault detection  
Device level thermal shutdown  
Programmable constant-current feed (Range TBD)  
Programmable loop-detect threshold  
Programmable ring-trip detect threshold  
Only +5 V and battery supply required  
Current Gain = 500  
Legerity offers a range of compatible SLAC devices that  
perform the codec function in a line card. In particular, the  
Legerity Quad SLAC device combined with the Le57D11  
configured for varying requirements.  
RELATED LITERATURE  
080147 Am79Q02/021/031 Quad SLAC Data Sheet  
080753 Le58QL02/021/031 QLSLAC™ Data Sheet  
080748 Le57D11 Evaluation Board User’s Guide  
BLOCK DIAGRAM  
CH2  
Fault  
CH1  
Fault  
Detector  
Detector  
CH2  
Input  
Decoder  
and Control  
CH1  
Input  
Decoder  
and Control  
A1 (TIP)  
HP1  
A2 (TIP)  
HP2  
ORDERING INFORMATION  
CH2  
2-W  
Interface  
CH1  
2-W  
Interface  
Common  
Bias  
32-Pin PLCC  
44-pin eTQFP  
B2 (RING)  
B1 (RING)  
CH1  
CH2  
CH2  
CH2  
CH2  
CH1  
CH1  
CH1  
VTX1  
VTX2  
Device  
Le57D111JC  
Le57D113JC  
Le57D111TC  
Le57D113TC  
Performance Grade  
RSN2  
RSN1  
32-pin PLCC, 48 dB Polarity Reversal  
32-pin PLCC, 48 dB No Polarity Reversal  
44-pin eTQFP, 48 dB Polarity Reversal  
44-pin eTQFP, 48 dB No Polarity Reversal  
BGND2  
BGND1  
Publication# 080676 Rev: A  
Version: 1.0 Date: Nov 16, 2001  
Le57D11 Data Sheet  
1234567...22

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