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LTC4401-2EMS8#TRPBF

更新时间： 2024-11-11 20:06:39
品牌 Logo 应用领域
凌特 - Linear 电信光电二极管电信集成电路
页数 文件大小 规格书
16页 212K
描述
LTC4401-2 - RF Power Controllers with 250kHz Loop BW and 45dB Dynamic Range; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C

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中文翻译

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LTC4401-2EMS8#TRPBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：MSOP包装说明：TSSOP,
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.08JESD-30 代码：S-PDSO-G8
JESD-609代码：e3长度：3 mm
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装形状：SQUARE
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.1 mm
标称供电电压：3.6 V表面贴装：YES
电信集成电路类型：TELECOM CIRCUIT温度等级：COMMERCIAL
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：3 mm
Base Number Matches：1

LTC4401-2EMS8#TRPBF 数据手册

 浏览型号LTC4401-2EMS8#TRPBF的Datasheet PDF文件第2页浏览型号LTC4401-2EMS8#TRPBF的Datasheet PDF文件第3页浏览型号LTC4401-2EMS8#TRPBF的Datasheet PDF文件第4页浏览型号LTC4401-2EMS8#TRPBF的Datasheet PDF文件第5页浏览型号LTC4401-2EMS8#TRPBF的Datasheet PDF文件第6页浏览型号LTC4401-2EMS8#TRPBF的Datasheet PDF文件第7页 
LTC4401-1/LTC4401-2  
RF Power Controllers  
with 250kHz Loop BW  
and 45dB Dynamic Range  
U
FEATURES  
DESCRIPTIO  
RF Power Amplifier Control in ThinSOTTM Package  
TheLTC®4401-1isaSOT-23RFpowercontrollerforslow  
turn-on RF power amplifiers operating in the 300MHz to  
2.7GHz range. The loop bandwidth is set at 250kHz  
to improve frequency stability when controlling slow  
turn-on RF power amplifiers such as the Conexant  
CX77301/CX77302, CX77304, CX77314, Anadigics  
AWT6107 and the RF Micro Devices RF3160.  
■
■
Internal Schottky Diode Detector with >45dB Range  
Wide Input Frequency Range:  
■
300MHz to 2.7GHz (LTC4401-1)  
300MHz to 2GHz (LTC4401-2)  
■
Autozero Loop Cancels Offset Errors and  
Temperature Dependent Offsets  
Wide VCC Range: 2.7V to 6V  
■
RF power is controlled by driving the RF amplifier power  
control pins and sensing the resultant RF output power  
via a directional coupler. The RF sense voltage is peak  
detected using an on-chip Schottky diode. This detected  
voltage is compared to the DAC voltage at the PCTL pin  
to control the output power. The RF power amplifier is  
protected against high power control pin voltages.  
■
Automatic Bandwidth Control Improves Low Power  
Ramp Response  
■
Allows Direct Connection to Battery  
■
RF Output Power Set by External DAC  
■
Internal Frequency Compensation  
■
Rail-to-Rail Power Control Output  
■
Power Control Signal Overvoltage Protection  
■
Internal and external offsets are cancelled over tempera-  
ture by an autozero control loop, allowing accurate low  
power programming. The shutdown feature disables the  
part and reduces the supply current to <10µA.  
Low Operating Current: 1mA  
■
Low Shutdown Current: 10µA  
■
Two Pole PCTL Input Filtering  
■
Low Profile (1mm) SOT-23 (ThinSOT™) (LTC4401-1)  
and 8-Pin MSOPU(LTC4401-2) Packages  
A dual control channel version (LTC4401-2) is also  
available in an 8-pin MSOP package.  
APPLICATIO S  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
■
GSM/GPRS Cellular Telephones  
■
PCS Devices  
■
Wireless Data Modems  
■
U.S. TDMA Cellular Phones  
U
TYPICAL APPLICATIO  
LTC4401-1 Dual Band Cellular Telephone Transmitter  
68Ω  
33pF  
BAND  
6
4
3
1
5
2
Li-Ion  
0.1µF  
V
RF  
CC  
LTC4401-1  
SELECT  
900MHz  
OUTPUT  
SHDN  
V
PC  
SHDN  
V
PCA  
900MHz  
INPUT  
PA MODULE  
PCTL  
GND  
DAC  
1.8GHz  
OUTPUT  
1.8GHz  
INPUT  
50Ω  
4401 TA01  
4401fa  
1
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