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CC2431ZRTC

更新时间： 2024-02-07 14:39:13
品牌 Logo 应用领域
TAOS 电信集成电路
页数 文件大小 规格书
16页 194K
描述
System-on-Chip for 2.4 GHz ZigBee/ IEEE 802.15.4 with Location Engine

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中文翻译

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CC2431ZRTC 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：QFN
包装说明：QFN-48针数：48
Reach Compliance Code：compliantHTS代码：8542.39.00.01
Factory Lead Time：1 week风险等级：7.15
Is Samacsys：NJESD-30 代码：S-XQCC-N48
JESD-609代码：e4长度：7 mm
湿度敏感等级：3功能数量：1
端子数量：48封装主体材料：UNSPECIFIED
封装代码：QCCN封装形状：SQUARE
封装形式：CHIP CARRIER峰值回流温度（摄氏度）：260
认证状态：Not Qualified表面贴装：YES
电信集成电路类型：TELECOM CIRCUIT端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：NO LEAD端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7 mm
Base Number Matches：1

CC2431ZRTC 数据手册

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CC2431  
2
Location Engine  
The Location Engine is used to estimate the  
position of nodes in an ad-hoc wireless  
network. Reference nodes exist with known  
coordinates, typically because they are part of  
an installed infrastructure. Other nodes are  
blind nodes, whose coordinates need to be  
estimated. These blind nodes are often mobile  
and attached to assets that need to be  
tracked.  
•
•
3 to 16 reference nodes can be used for  
the location estimation algorithm  
Location estimate with readout resolution  
of 0.25 meters (note: The accuracy of the  
location estimate will depend on several  
factors described below).  
Time to estimate node location is 50 µs to  
13 ms  
Location range 64 x 64 meters  
Runs location estimation with minimum  
CPU usage  
•
•
•
The Location Engine implements a distributed  
computation algorithm that uses received  
signal strength indicator (RSSI) values from  
known reference nodes. Performing location  
calculations at the node level reduces network  
traffic and communication delays otherwise  
To achieve the best possible accuracy one  
should use antennas that have near-isotropic  
radiation characteristics. The location error  
depends on signal environment, deployment  
pattern of reference nodes and the density of  
reference nodes in a given area. In general,  
having more reference nodes available  
improves the accuracy of the location  
estimation.  
present in  
approach.  
a
centralized computation  
The Location Engine has the following main  
features:  
2.1 Location Engine Operation  
This section describes the basic steps  
required to obtain location estimates from the  
Location Engine.  
Engine is not in use, writing  
LOCENG.EN will reduce the  
consumption of the CC2431 by gating off the  
Engine’s clock signal.  
a
0
to  
power  
The Location Engine requires a set of three to  
16 reference coordinates to be input together  
with a set of measured parameters. The output  
from the Location Engine consists of a pair of  
estimated location coordinates.  
Figure 1 shows the basic operation of the  
Location Engine.  
Before any input data is written, the Location  
Engine must be enabled by writing a 1 to the  
enable bit, LOCENG.EN. When the Location  
CC2431 Data Sheet (Rev. 2.01) SWRS034B  
Page 5 of 15  
 
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