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TRF7900APWRG4 PDF预览

TRF7900APWRG4

更新时间： 2024-02-18 13:04:38
品牌 Logo 应用领域
德州仪器 - TI 无线光电二极管商用集成电路
页数 文件大小 规格书
16页 230K
描述
Wireless 27MHz Dual receiver 28-TSSOP -40 to 85

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TRF7900APWRG4 技术参数

是否无铅：含铅是否Rohs认证：符合
生命周期：Obsolete零件包装代码：SSOP
包装说明：TSSOP-28针数：28
Reach Compliance Code：compliantHTS代码：8542.39.00.01
风险等级：5.84Is Samacsys：N
商用集成电路类型：CONSUMER CIRCUITJESD-30 代码：R-PDSO-G28
JESD-609代码：e4长度：9.7 mm
湿度敏感等级：1功能数量：1
端子数量：28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：TSSOP封装形状：RECTANGULAR
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：1.2 mm
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：4 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)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：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

TRF7900APWRG4 数据手册

 浏览型号TRF7900APWRG4的Datasheet PDF文件第2页浏览型号TRF7900APWRG4的Datasheet PDF文件第3页浏览型号TRF7900APWRG4的Datasheet PDF文件第4页浏览型号TRF7900APWRG4的Datasheet PDF文件第5页浏览型号TRF7900APWRG4的Datasheet PDF文件第6页浏览型号TRF7900APWRG4的Datasheet PDF文件第7页 
TI CONFIDENTIAL  
TRF7900A  
www.ti.com  
SWRS031A–OCTOBER 2005–REVISED DECEMBER 2005  
Fully Integrated Analog Front-End Dual Receiver Base  
Unit for 27-MHz Wireless Mouse and Keyboard Systems  
FEATURES  
DESCRIPTION  
•
23 Discrete Components Intgrated Into One  
Chip  
The TRF7900A is a dual integrated RF transceiver  
designed for Human Interface Devices (HID).  
Operating at 27 MHz, it integrates multiple  
components (PLL, RF mixer, simulated SAW filter,  
– Only External Components are Bypass and  
Filter Capacitors, and One Crystal  
tuning  
circuit,  
and  
miscellaneous  
passive  
•
RF Tuner, Mixer, Transistors, Passives, Coils,  
and SAW Filter Functionality All on One Chip  
components) to provide frequency selection from 8  
discrete channels. This integration lowers component,  
manufacturing and system costs.  
•
•
Integrated Phase Locked Loop  
8 User-Selectable Frequencies  
The TRF7900A simplifies system design by reducing  
system component count and manual circuit tuning.  
By integrating the PLL, SAW filter, and RF mixer, the  
TRF7900A eliminates the manual tuning of RLC  
circuits required in traditional implementations.  
– Each Channel (Mouse and Keyboard) Can  
Independently Select Any of the Available  
Frequencies  
•
•
Internally Generated 6-MHz Clock to Drive  
USB Microcontroller  
The receiver also generates 8 frequencies that can  
be programmatically selected via the I2C interface  
bus for both the mouse channel and/or the keyboard  
channel. Another 6-MHz clock is internally generated  
to clock the USB microcontroller; this enables a  
single crystal to be used to supply the clock needs for  
the receiver channels and the microcontroller.  
High Data Throughput Rate  
– 5-kHz Square Wave Simultaneously per  
Channel  
– 10 kbps Miller Encoded Data  
I2C Control Interface  
•
•
•
•
The optimized receiver design enables simultaneous  
reception on both parallel channels up to 5 kHz (10  
kbps Miller encoding) per channel. A receive strength  
signal indicator register can be read via the I2C bus to  
determine if the transmit signal is too weak (weak  
battery or too far), or if there is too much noise on the  
selected channel in the user's area.  
Received Signal Strength Indicator (4-BIt)  
5-V, 52 mA Supply  
Available in 28-Pin TSSOP (PW) Package  
APPLICATIONS  
•
27-MHz Wireless Mouse and Keyboard  
Systems  
Human Interface Devices  
Wireless Control  
USB or PS/2  
Power  
•
•
•
•
•
Remote Control Toys  
Wireless Headset  
Remote instrumentation  
PCB Loop  
Antenna  
TPS71533  
I2C Control  
TRF7900A  
2 Data Channels  
6MHz for uP  
12 MHz  
Crystal  
MSP430  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2005, Texas Instruments Incorporated  
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