TRF7900A

更新时间： 2024-11-19 03:26:31

品牌	Logo	应用领域
德州仪器 - TI		无线
页数	文件大小	规格书
3页	47K
描述
Fully Integrated Analog Front-End Dual Receiver Base Unit for 27-MHz Wireless Mouse and Keyboard Systems

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TRF7900A 数据手册

TRF7900A

www.ti.com

SWRS031–OCTOBER 2005

Fully Integrated Analog Front-End Dual Receiver Base Unit for 27-MHz Wireless Mouse

and Keyboard Systems

FEATURES

•

High Data Throughput Rate

•

23 Discrete Components Intgrated into One

Chip

– 5-kHz Square Wave Simultaneously per

Channel

– Only External Components are Bypass and

Filter Capacitors, and One Crystal

– 10 kbps Miller Encoded Data

I²C Control Interface

•

RF Tuner, Mixer, Transistors, Passives, Coils,

and Ceramic Filter Functionality All on One

Chip

Received Signal Strength Indicator

5-V Supply

Available in 28-Pin TSSOP (PW) Pacakge

•

Integrated Phase Locked Loop

8 User-Selectable Frequencies

APPLICATIONS

– Each Channel (Mouse and Keyboard) Can

Independently Select Any of the Available

Frequencies

•

27-MHz Wireless Mouse and Keyboard

Systems

Human Interface Devices

Wireless Control

Remote Control Toys

Wireless Headset

•

Internally Generated 6-MHz Clock to Drive

USB Microcontroller

Remote instrumentation

DESCRIPTION

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, tuning circuit, and miscellaneous

passive components) to provide frequency selection from 8 discrete channels. This integration lowers

component, manufacturing and system costs.

USB or PS/2

Power

PCB Loop

Antenna

TPS71533

I2C Control

TRF7900A

2 Data Channels

6MHz for uP

12 MHz

Crystal

MSP430

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.

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.

12 3

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与TRF7900A相关器件

型号	品牌	获取价格	描述	数据表
TRF7900APW	TI	获取价格	Fully Integrated Analog Front-End Dual Receiver Base Unit for 27-MHz Wireless Mouse and Ke
TRF7900APWR	TI	获取价格	Fully Integrated Analog Front-End Dual Receiver Base Unit for 27-MHz Wireless Mouse and Ke
TRF7900APWRG4	TI	获取价格	Wireless 27MHz Dual receiver 28-TSSOP -40 to 85
TRF7960	TI	获取价格	Multi-Standard Fully Integrated 13.56-MHz Radio Frequency Identification (RFID) Analog Fro
TRF7960_07	TI	获取价格	Multi-Standard Fully Integrated 13.56-MHz Radio Frequency Identification (RFID) Analog Fro
TRF7960_12	TI	获取价格	MULTI-STANDARD FULLY INTEGRATED 13.56-MHZ RFID ANALOG FRONT END AND DATA-FRAMING READER SY
TRF7960A	TI	获取价格	MULTI-PROTOCOL FULLY INTEGRATED 13.56-MHz RFID READER/WRITER IC
TRF7960ARHBR	TI	获取价格	MULTI-PROTOCOL FULLY INTEGRATED 13.56-MHz RFID READER/WRITER IC
TRF7960ARHBT	TI	获取价格	MULTI-PROTOCOL FULLY INTEGRATED 13.56-MHz RFID READER/WRITER IC
TRF7960EVM	TI	获取价格	TRF7960EVM User's Guide

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