參數(shù)資料
型號(hào): NRF2401A
廠商: Electronic Theatre Controls, Inc.
英文描述: Single chip 2.4 GHz Transceiver
中文描述: 單片2.4GHz無(wú)線收發(fā)
文件頁(yè)數(shù): 23/38頁(yè)
文件大小: 263K
代理商: NRF2401A
PRODUCT SPECIFICATION
nRF2401A Single Chip 2.4 GHz Radio Transceiver
DATA PACKAGE DESCRIPTION
Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -
Revision: 1.0
Phone +4772898900
-
Fax +4772898989
December 2004
Page 23 of 38
PRE-AMBLE
ADDRESS
PAYLOAD
CRC
Figure 11 Data Package Diagram
The data packet for both ShockBurst mode and direct mode communication is
divided into 4 sections. These are:
1.
PREAMBLE
The preamble field is required in ShockBurst and Direct modes.
Preamble is 8 bits in length and is dependent of the first data bit in direct
mode.
PREAMBLE
01010101 0
10101010 1
Preamble is automatically added to the data packet in ShockBurst and
thereby gives extra space for payload. In Direct mode MCU must handle
preamble.
In ShockBurst mode RX, the preamble is removed from the received output
data, in direct mode the preamble is transparent to the output data.
2
ADDRESS
The address field is required in ShockBurst mode.
1
8 to 40 bits length.
Address automatically removed from received packet in ShockBurst
mode. In Direct mode MCU must handle address.
3
PAYLOAD
The data to be transmitted
In ShockBurst mode payload size is 256 bits minus the following:
(Address: 8 to 40 bits. + CRC 8 or 16 bits).
In Direct mode the maximum packet size (length) is for 1Mbps 4000 bits
(4ms).
4
CRC
The CRC is optional in ShockBurst mode, and is not used in Direct
mode.
8 or 16 bits length
The CRC is removed from the received output data in ShockBurst RX.
1
st
ADDR-BIT
Table 18 Data package description
1
Suggestions for the use of addresses in ShockBurst: In general more bits in the address gives less
false detection, which in the end may give lower data packet loss.
A.
The address made by (5, 4, 3, or 2) equal bytes are not recommended because it in general will
make the packet-error-rate increase.
B.
Addresses where the level shift only one time (i.e. 000FFFFFFF) could often be detected in noise
that may give a false detection, which again may give raised packet-error-rate.
Direct mode will be dependent on the software used in the MCU, but it is recommended to have the
same restrictions on addresses for this mode.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NRF2401A-DIE 制造商:Nordic Semiconductor 功能描述:
NRF2401A-EVKIT 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single chip 2.4 GHz Transceiver
nRF2401AG 功能描述:射頻收發(fā)器 1.9-3.6V 1MBIT XCVR 2.4GHz SHCKBRST RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray
nRF2401AG-REEL 功能描述:射頻收發(fā)器 1.9-3.6V 1MBIT XCVR 2.4GHz SHCKBRST RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray
nRF2401AG-REEL7 功能描述:射頻收發(fā)器 1.9-3.6V 1MBIT XCVR 2.4GHz SHCKBRST RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray