5秒后页面跳转
捷配首页

Datasheet > LTC1757A-2_15
LTC1757A-2_15 PDF预览

LTC1757A-2_15

更新时间： 2024-02-09 15:10:24
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
16页 211K
描述
Single/Dual Band RF Power Controllers

阅读下载

中文翻译

获取价格

LTC1757A-2_15 数据手册

 浏览型号LTC1757A-2_15的Datasheet PDF文件第2页浏览型号LTC1757A-2_15的Datasheet PDF文件第3页浏览型号LTC1757A-2_15的Datasheet PDF文件第4页浏览型号LTC1757A-2_15的Datasheet PDF文件第5页浏览型号LTC1757A-2_15的Datasheet PDF文件第6页浏览型号LTC1757A-2_15的Datasheet PDF文件第7页 
LTC1757A-1/LTC1757A-2  
Single/Dual Band  
RF Power Controllers  
U
FEATURES  
■
DESCRIPTIO  
Dual Band RF Power Amplifier Control (LTC1757A-2) The LTC®1757A-2 is a dual band RF power controller for  
■
■
■
Improved Internal Schottky Diode Detector  
Wide Input Frequency Range: 850MHz to 2GHz  
Autozero Cancels Initial Offsets and Temperature  
Dependent Offset Errors  
Wide VIN Range of 2.7V to 6V Allows  
Direct Connection to Battery  
RF power amplifiers operating in the 850MHz to 2GHz  
range.TheLTC1757AispincompatiblewiththeLTC1757  
but has improved RF detection range. The input voltage  
rangeisoptimizedforoperationfromasinglelithium-ion  
cell or 3× NiMH. Several functions required for RF power  
control and protection are integrated in one small 10-pin  
MSOP package, thereby minimizing PCB area.  
■
■
■
■
■
■
■
■
■
■
■
RF Output Power Set by External DAC  
Fast Acquire After Transmit Enable  
Internal Frequency Compensation  
Rail-to-Rail Power Control Outputs  
RF PA Supply Current Limiting  
The LTC1757A-1 is a single output RF power controller  
that is identical in performance to the LTC1757A-2 except  
that one output (VPCA) is provided. The LTC1757A-1 can  
be used to drive a single RF channel or dual channel  
module with integral multiplexer. This part is available in  
an 8-pin MSOP package.  
Battery Overvoltage Protection  
Power Control Signal Overvoltage Protection  
Low Operating Current: 1mA  
Very Low Shutdown Current: <1µA  
Available in a 8-Pin MSOP Package (LTC1757A-1)  
and 10-Pin MSOP (LTC1757A-2)  
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 supply voltage and current and  
high power control pin voltages.  
U
APPLICATIO S  
■
Single/Dual Band GSM Cellular Telephones  
■
PCS Devices  
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 <1µA.  
■
Wireless Data Modems  
■
TDMA Cellular Telephones  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
LTC1757A-2 Dual Band Cellular Telephone Transmitter  
68Ω  
LTC1757A-2  
33pF  
V
IN  
1
2
3
4
5
10  
9
V
V
CC  
IN  
DIRECTIONAL  
COUPLER  
Li-Ion  
RF  
V
PCA  
PCB  
DIPLEXER  
8
SHDN  
BSEL  
SHDN  
BSEL  
GND  
V
900MHz  
RF PA  
7
TXEN  
PCTL  
TXEN  
6
50Ω  
DAC  
1.8GHz/1.9GHz  
RF PA  
1757A TA01  
1
1234567...16

中文翻译

下载PDF

与LTC1757A-2_15相关器件

型号 品牌 获取价格 描述 数据表
LTC1757A-2EMS Linear

获取价格

 		Single/Dual Band RF Power Controllers
LTC1757A-2EMS#PBF Linear

获取价格

 		暂无描述
LTC1757A-2EMS#TR Linear

获取价格

 		LTC1757A - Single/Dual Band RF Power Controllers; Package: MSOP; Pins: 10; Temperature Ran
LTC1757A-2EMS#TRPBF Linear

获取价格

 		LTC1757A - Single/Dual Band RF Power Controllers; Package: MSOP; Pins: 10; Temperature Ran
LTC1758 Linear

获取价格

 		40MHz to 900MHz Quadrature Demodulator
LTC1758-1 Linear

获取价格

 		RF Power Controllers with 250kHz Control Loop Bandwidth and 40dB Dynamic Range
LTC1758-1_15 Linear

获取价格

 		RF Power Controllers with 250kHz Control Loop Bandwidth and 40dB Dynamic Range
LTC1758-1EMS8 Linear

获取价格

 		RF Power Controllers with 250kHz Control Loop Bandwidth and 40dB Dynamic Range
LTC1758-1EMS8#PBF Linear

获取价格

 		LTC1758-1 - RF Power Controllers with 250kHz Control Loop Bandwidth and 40dB Dynamic Range
LTC1758-1EMS8#TR Linear

获取价格

 		LTC1758-1 - RF Power Controllers with 250kHz Control Loop Bandwidth and 40dB Dynamic Range

与LTC1757A-2_15相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证