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LE79555-4BVCT

更新时间： 2024-11-30 19:47:07
品牌 Logo 应用领域
加拿大卓联 - ZARLINK 电信电信集成电路
页数 文件大小 规格书
25页 435K
描述
SLIC, CMOS, PQFP44, GREEN, MS-026ACB, TQFP-44

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中文翻译

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LE79555-4BVCT 技术参数

是否Rohs认证： 符合生命周期：Transferred
包装说明：TQFP, TQFP44,.47SQ,32Reach Compliance Code：unknown
HTS代码：8542.39.00.01风险等级：5.56
电池馈电：CONSTANT CURRENT电池供电：-40 TO -58 V
JESD-30 代码：S-PQFP-G44长度：10 mm
最大噪声：10 dBrnC功能数量：1
端子数量：44最高工作温度：70 °C
最低工作温度：PSRR-Min：28 dB
封装主体材料：PLASTIC/EPOXY封装代码：TQFP
封装等效代码：TQFP44,.47SQ,32封装形状：SQUARE
封装形式：FLATPACK, THIN PROFILE电源：5 V
认证状态：Not Qualified座面最大高度：1.2 mm
子类别：Analog Transmission Interfaces最大压摆率：0.006 mA
标称供电电压：5 V表面贴装：YES
技术：CMOS电信集成电路类型：SLIC
温度等级：COMMERCIAL端子形式：GULL WING
端子节距：0.8 mm端子位置：QUAD
宽度：10 mmBase Number Matches：1

LE79555-4BVCT 数据手册

 浏览型号LE79555-4BVCT的Datasheet PDF文件第2页浏览型号LE79555-4BVCT的Datasheet PDF文件第3页浏览型号LE79555-4BVCT的Datasheet PDF文件第4页浏览型号LE79555-4BVCT的Datasheet PDF文件第5页浏览型号LE79555-4BVCT的Datasheet PDF文件第6页浏览型号LE79555-4BVCT的Datasheet PDF文件第7页 
™
Le79555  
Subscriber Line Interface Circuit  
VE580 Series  
APPLICATIONS  
DESCRIPTION  
The Le79555 device, part of the Zarlink VoiceEdge™ family  
VE580 series of devices, was designed for high-density POTS  
applications requiring a power saving, small footprint SLIC  
device. The new SLIC device fulfills today's requirements for  
POTS linecard markets requiring a balance of high-  
performance cost-effective silicon components. The Le79555  
device delivers economical linecard solutions by offering power  
and space savings to linecard designers. The on-chip  
switching regulator allows for power dissipation to be  
minimized for the entire system. Another benefit is that the  
device is offered in a reduced footprint package type, a 44-pin  
TQFP. This small footprint saves designers board space, thus  
increasing the density or number of lines on the board.  
„ Ideal for high-density, low-power linecard applications  
FEATURES  
„ Control states: Active, Reverse Polarity, Tip Open,  
Ringing, Standby, and Open Circuit  
„ Low Standby power  
„ –40 to –58 V battery operation  
„ On-hook transmission  
„ Two-wire impedance set by single external impedance  
„ Programmable constant-current feed  
„ Low Off-Hook Active Overhead Voltage  
„ Programmable loop-detect threshold  
„ Ground-start detector  
Zarlink offers a range of compatible SLAC™ devices  
providing a complete line circuit that can be optimized for  
varying requirements. The SLIC device is designed to operate  
with a range of SLAC devices from low cost, non-  
programmable to more advanced, highly programmable  
options viable for a range of applications.  
„ Programmable ring-trip detect threshold  
„ No –5 V supply required  
„ Three on-chip relay drivers and relay snubbers, one  
ringing and two general purpose  
„ Tip Open state for ground-start lines  
„ On-chip switching regulator for Low power dissipation  
„ Supports 30 mA for Active, Normal, and Reverse  
Polarity operation  
RELATED LITERATURE  
„ 080125 SLIC Switcher Circuit Application Note  
„ 080725 Le79555 Switching Regulator Applications  
„ 080753 Le58QL02/021/031 QLSLAC™ Data Sheet  
„ 080754 Le58QL061/063 QLSLAC™ Data Sheet  
ORDERING INFORMATION  
Device  
Performance Grade / Package1  
Packing2  
63 dB Pol. Rev.,  
Le79555-2BVC  
BLOCK DIAGRAM  
44-pin TQFP (Green)  
63 dB Pol. Rev.,  
Le79555-2FQC 32-pin QFN (with exposed pad)  
(Green)  
Ring Relay Driver  
Relay Driver  
RINGOUT  
RYOUT1  
RYOUT2  
Tray  
A(TIP)  
63 dB No Pol. Rev.,  
44-pin TQFP (Green)  
Le79555-4BVC  
Relay Driver  
HPA  
C1  
C2  
C3  
1. The green package meets RoHS Directive 2002/95/EC of the  
European Council to minimize the environmental impact of  
electrical equipment.  
D1  
D2  
Input Decoder  
and Control  
HPB  
2. For delivery using a tape and reel packing system, add a "T" suffix  
to the OPN (Ordering Part Number) when placing an order.  
DET  
Two Wire  
Interface  
Ground  
Detector  
VTX  
RSN  
Signal  
Transmission  
B(RING)  
Off-Hook  
Detector  
RD  
RDC  
CAS  
VDC  
Power Feed  
Controller  
VREG  
DA  
Ring-Trip  
Detector  
DB  
L
VBAT  
BGND  
Switching Regulator  
Document ID# 080686 Date:  
Sept 19, 2007  
3
Rev:  
G
Version:  
Distribution:  
Public Document  
 
 
 
 
 
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