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LE87251NQCT PDF预览

LE87251NQCT

更新时间: 2024-02-01 00:27:28
品牌 Logo 应用领域
加拿大卓联 - ZARLINK 驱动接口集成电路驱动器
页数 文件大小 规格书
14页 187K
描述
Line Driver, 1 Func, 1 Driver, 1 Rcvr, BIPolar, 4 X 4 MM, GREEN, QFN-16

LE87251NQCT 技术参数

生命周期:Active包装说明:HVQCCN,
Reach Compliance Code:compliantFactory Lead Time:10 weeks
风险等级:5.7差分输出:NO
驱动器位数:4输入特性:STANDARD
接口集成电路类型:LINE DRIVER接口标准:GENERAL PURPOSE
JESD-30 代码:S-XQCC-N16长度:4 mm
标称负供电电压:-12 V功能数量:4
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:UNSPECIFIED
封装代码:HVQCCN封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE座面最大高度:1 mm
最大供电电压:12.6 V最小供电电压:11.4 V
标称供电电压:12 V表面贴装:YES
温度等级:INDUSTRIAL端子形式:NO LEAD
端子节距:0.65 mm端子位置:QUAD
宽度:4 mmBase Number Matches:1

LE87251NQCT 数据手册

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Le87251  
Worldwide ADSL2+ Dual Channel  
Line Driver BD870 Series  
Data Sheet  
June 2009  
Features  
Document Number  
129739  
Fixed Voltage Gain Of 13  
450 mA Peak Output Drive Capability  
Ordering Information  
Le87251NQC16 pin QFN Green Pkg.Tray  
Le87251NQCT16 pin QFN Green Pkg.Tape & Reel  
±5 V to ±12 V Dual Supplies Or 10 V to 24 V  
Single Supply  
The green package meets RoHS Directive 2002/95/EC of the  
European Council to minimize the environmental impact of electrical  
equipment.  
44 Vp-p Differential Output Into a 100 Ω Load  
40.5 Vp-p Differential Output Into a 60 Ω Load  
Low-power Disable Mode For Each Driver  
4 mA Per Amplifier Quiescent Supply Current  
-75 dBc THD With 1 MHz Signal Into a 60 Ω load  
16-pin (4 mm x 4 mm) QFN Package  
RoHS Compliant  
Logic  
Control  
VS+  
ENAB  
VS-  
Logic  
Control  
ENCD  
VINA  
GND  
+
Applications  
VOUTA  
VS+  
A
Dual Port Full Rate ADSL2+ Line Drivers  
HDSL Line Drivers  
7.5k  
7.5k  
RF  
50k  
50k  
VCMAB  
RG  
Description  
RF  
The Le87251 is a dual channel differential amplifier  
designed to drive full rate ADSL2+ signals with very  
low power dissipation. The Le87251 contains two pairs  
of wide band amplifiers designed with Zarlink’s HV30  
Bipolar SOI process for low power consumption in  
DSL systems. The amplifiers have an internal fixed  
gain, which helps to eliminate external feedback and  
gain setting resistors.  
VOUTB  
VOUTC  
VS-  
B
VINB  
VINC  
+
VS+  
C
7.5k  
7.5k  
RF  
50k  
50k  
The drivers achieve better than -75 dB MTPR while  
driving a 1 MHz, 16Vp_p signal into a 60 Ω load. The  
amplifiers are enabled by forcing the ENAB/ENCD  
pins to ground. Leaving the ENAB/ENCD pins floating  
or forcing them high will disable the two amplifiers. The  
ENAB and ENCD pins are pulled up to an internal  
2.5 V through on-chip 50 kΩ resistors.  
VCMCD  
RG  
RF  
VS-  
VOUTD  
D
VIND  
Le87251 device is one of the most cost-effective and  
high performance line drivers for xDSL2+ applications.  
Figure 1 - Block Diagram  
1
Zarlink Semiconductor Inc.  
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.  
Copyright 2009, Zarlink Semiconductor Inc. All Rights Reserved.  

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