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LT1739IFE#PBF

更新时间： 2024-11-18 19:48:27
品牌 Logo 应用领域
凌特 - Linear 驱动光电二极管接口集成电路驱动器
页数 文件大小 规格书
20页 284K
描述
LT1739 - Dual 500mA, 200MHz xDSL Line Driver Amplifier; Package: TSSOP; Pins: 20; Temperature Range: -40°C to 85°C

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中文翻译

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LT1739IFE#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：TSSOP包装说明：HTSSOP,
针数：20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.39差分输出：YES
驱动器位数：1输入特性：DIFFERENTIAL
接口集成电路类型：LINE DRIVER接口标准：GENERAL PURPOSE
JESD-30 代码：R-PDSO-G20JESD-609代码：e3
长度：6.5 mm湿度敏感等级：1
功能数量：2端子数量：20
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
最大接收延迟：座面最大高度：1.2 mm
最大供电电压：12 V最小供电电压：5 V
表面贴装：YES技术：BIPOLAR
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：4.4 mmBase Number Matches：1

LT1739IFE#PBF 数据手册

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LT1739  
Dual 500mA, 200MHz  
xDSL Line Driver Amplifier  
U
FEATURES  
DESCRIPTIO  
TheLT®1739isa500mAminimumoutputcurrent,dualop  
amp with outstanding distortion performance. The ampli-  
fiersaregain-of-tenstable, butcanbeeasilycompensated  
for lower gains. The extended output swing allows for  
lowersupplyrailstoreducesystempower. Supplycurrent  
is set with an external resistor to optimize power dissipa-  
tion. The LT1739 features balanced, high impedance in-  
puts with low input bias current and input offset voltage.  
Active termination is easily implemented for further sys-  
tempowerreduction.Short-circuitprotectionandthermal  
shutdown insure the device’s ruggedness.  
■
3mm × 4mm High Power DFN Package  
■
Exceeds All Requirements For Full Rate,  
Downstream ADSL Line Drivers  
±500mA Minimum IOUT  
■
■
±11.1V Output Swing, VS = ±12V, RL = 100Ω  
■
±10.9V Output Swing, VS = ±12V, IL = 250mA  
■
Low Distortion: –82dBc at 1MHz, 2VP-P Into 50Ω  
■
Power Saving Adjustable Supply Current  
■
Power Enhanced TSSOP-20 Small Footprint Package  
■
200MHz Gain Bandwidth  
■
600V/µs Slew Rate  
■
Specified at ±12V and ±5V  
The outputs drive a 100Ω load to ±11.1V with ±12V  
supplies, and ±10.9V with a 250mA load. The LT1739 is a  
pin-for-pin replacement for the LT1794 in xDSL line driver  
applications and requires no circuit changes.  
U
APPLICATIO S  
■
High Density ADSL Central Office Line Drivers  
■
The LT1739 is available in the very small, thermally  
enhanced, 3mm × 4mm DFN package or a 20-lead TSSOP  
for maximum port density in central office line driver  
applications. For a dual version of the LT1739, see the  
LT6301 data sheet.  
High Efficiency ADSL, HDSL2, G.lite,  
SHDSL Line Drivers  
Buffers  
Test Equipment Amplifiers  
Cable Drivers  
■
■
■
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
High Efficiency ±12V Supply ADSL Central Office Line Driver  
12V  
3mm × 4mm DFN Package  
R
BIAS  
Bottom View  
24.9k  
+IN  
+
SHDN  
12.7Ω  
1/2  
LT1739  
EXPOSED  
THERMAL  
PAD  
–
1k  
1:2*  
0.8mm  
110Ω  
110Ω  
100Ω  
1000pF  
1739 TA01  
1k  
1739 TA02  
3mm  
4mm  
*COILCRAFT X8390-A OR EQUIVALENT  
= 10mA PER AMPLIFIER  
–
I
SUPPLY  
WITH R  
12.7Ω  
1/2  
LT1739  
= 24.9k  
BIAS  
SHDNREF  
–IN  
+
–12V  
1739fas, sn1739  
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