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CC2571

更新时间： 2024-02-24 19:28:42

品牌	Logo	应用领域
德州仪器 - TI		射频
页数	文件大小	规格书
32页	764K
描述
1- and 8-Channel ANT? RF Network Processors

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CC2571 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	VQFN-40	针数：	40
Reach Compliance Code：	compliant	ECCN代码：	5A992.C
HTS代码：	8542.31.00.01	Factory Lead Time：	6 weeks
风险等级：	1.57	Samacsys Confidence：	4
Samacsys Status：	Released	2D Presentation：	https://componentsearchengine.com/2D/0T/413716.1.1.png
Schematic Symbol：	https://componentsearchengine.com/symbol.php?partID=413716	PCB Footprint：	https://componentsearchengine.com/footprint.php?partID=413716
3D View：	https://componentsearchengine.com/viewer/3D.php?partID=413716	Samacsys PartID：	413716
Samacsys Image：	https://componentsearchengine.com/Images/9/CC2571RHAT.jpg	Samacsys Thumbnail Image：	https://componentsearchengine.com/Thumbnails/1/CC2571RHAT.jpg
Samacsys Pin Count：	41	Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Quad Flat No-Lead	Samacsys Footprint Name：	RHA (S-PVQFN-N40)_1
Samacsys Released Date：	2017-04-25 16:59:09	Is Samacsys：	N
总线兼容性：	SPI; UART	外部数据总线宽度：
JESD-30 代码：	S-PQCC-N40	JESD-609代码：	e4
长度：	6 mm	湿度敏感等级：	3
端子数量：	40	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：	HVQCCN	封装等效代码：	LCC40,.24SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	电源：	3 V
认证状态：	Not Qualified	座面最大高度：	1 mm
子类别：	Other uPs/uCs/Peripheral ICs	最大供电电压：	3.6 V
最小供电电压：	2 V	标称供电电压：	3 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	6 mm	uPs/uCs/外围集成电路类型：	MICROPROCESSOR CIRCUIT
Base Number Matches：	1

CC2571 数据手册

CC2570

CC2571

SWRS095A –FEBRUARY 2011–REVISED MARCH 2011

www.ti.com

ANT Channel Types

There are different types of ANT channels, including bidirectional channels, unidirectional channels, shared

channels, and scanning channels. The type of channel chosen for a particular application is dependent on the

application requirements for use case, power consumption, topology, and battery life expectancy.

Bidirectional channels support two-way communication between the master and the slave. The master transmits

a message on every channel period, whereas the slave only transmits a message to the master if required to do

so by the application. For every message that the slave receives from the master, the slave can transmit a

message back. Hence, the effective data through put is the same in both directions. Bidirectional channels are

also necessary to take advantage of ANT’s unique channel co-existence mechanisms.

Unidirectional, or transmit-only, channels allow for communication from the master to the slave only. These types

of channels support the broadcast message type only and do not offer the co-existence mechanisms built into

bidirectional channels. Although unidirectional channels provide the lowest power solution, they are generally not

recommended for systems that require co-existence of several ANT channels in a common RF space.

Shared channels are a special type of bidirectional channel that allow a single master endpoint to address up to

64K slaves. Each slave synchronizes to the channel period of the master. The master can address a different

slave on each channel timeslot by specifying the address of the slave in the first 2 bytes of the data payload. The

master may also send a broadcast message to all of the slaves simultaneously by specifying an address of 0.

Shared channels are an excellent solution for networks that require many of nodes and are sensitive to power

requirements but not to latency requirements.

Unidirectional

Bidirectional

. . .

Shared

M0213-01

Figure 5. Synchronous ANT Channel Types

Unlike the channel types listed previously, scanning channels are different in that they are asynchronous. That is,

the slave does not synchronize to a master channel. Instead, any message received from a master is passed

onto the application MCU, along with the channel ID of the device received from. This allows a slave to receive

from multiple masters without actually forming a connection to any particular master. Scanning channels come in

two flavors – continuous-scanning and background-scanning. The difference between the two amounts to a

tradeoff between power consumption and latency. A continuous-scanning channel keeps its receiver on all the

time. This means that any transmissions are received immediately, eliminating latency at the cost of power

consumption to keep the radio on all the time. Continuous-scanning channels are an ideal solution for systems

that must be very low power on one side of the link but not the other, for example, a remote control. A

background scanning channel does not keep its receiver on all of the time. Instead, it continually searches for

transmissions, without ever actually synchronizing to a channel. The power consumption is drastically reduced at

the expense of data latency. Background scanning channels are ideal for battery-operated systems where the

hub must be able to communicate with multiple nodes with reasonable latency, for example, a proximity

awareness application.

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