CYWUSB6934是一个2.4 GHz CDMA无线电收发器。其通过SPI接口能够直接与USB控制器或者任何一种标准的8位微控制器连接。CYWUSB6934适应PC机上的硬盘驱动器、鼠标、键盘和操作杆无线连接;游戏机上控制键盘和控制台遥控;电子收款机系统终端和消费类电子产品的应用。

主要技术特点如下：

·RF工作频率为2.401～2.482 GHz;

·GFSK调制方式;

·数据传输速率为62.5 Kb/s;

·接收灵敏度为-90 dBm，接收距离大于10 rn;

·输出功率为-6～4 dBm;

·工作电压为2.7～3.6 V;

·发射工作电流最大为62 mA，接收工作电流为58 mA，低功耗模式最大电流为10μA;

·数字DSSS基带。

CYWUSB6934 USB收发器应用电路

CYWUSB6934, CYWUSB6932: WirelessUSB™ LS 2.4 GHz DSSS Radio SoC

Features

2.4-GHz radio transceiver

Operates in the unlicensed Industrial, Scientific, and Medical (ISM) band (2.4 GHz to 2.483 GHz)

Receive sensitivity: –90 dBm

Up to 0 dBm output power

Range of up to 10 meters or more

Data throughput of up to 62.5 kbits/sec

Highly integrated low cost, minimal number of external components required

Dual direct sequence spread spectrum (DSSS reconfigurable baseband correlators

SPI microcontroller interface (up to 2-MHz data rate)

For more, see pdf

Functional Description

The CYWUSB6932/CYWUSB6934 Integrated Circuits (ICs) are highly integrated 2.4-GHz DSSS radio system-on-chip (SoC) ICs. From the serial peripheral interface (SPI) to the antenna, these ICs are single-chip 2.4-GHz DSSS Gaussian Frequency Shift Keying (GFSK) baseband modems that connect directly to a microcontroller via simple serial interface.

The CYWUSB6932 transmit-only IC and the CYWUSB6934 transceiver IC are available in a small footprint 48-pin QFN package.