參數(shù)資料
型號(hào)： NRF9E5-EVKIT868
廠商： Electronic Theatre Controls, Inc.
英文描述： 433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
中文描述： 433/868/915MHz RF收發(fā)器與8051兼容的嵌入式微控制器和4輸入，10位ADC
文件頁(yè)數(shù)： 26/104頁(yè)
文件大小： 1436K
代理商： NRF9E5-EVKIT868
PRODUCT SPECIFICATION
nRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADC
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 - Fax +4772898989
Revision: 1.1
Page 26 of 104
June 2004
9.3
Standby Mode
Standby mode is used to minimize average current consumption while not transmitting
or receiving and still maintaining short start up times to ShockBurst
TM
RX and
ShockBurst
TM
TX. In this mode the crystal oscillator have to be active. The
configuration word content is maintained during standby.
9.4
Output Power Adjustment
The power amplifier in nRF905 can be programmed to four different output power
settings by the configuration register. By reducing output power, the total TX current is
reduced.
Power setting
RF output power
DC current consumption
11.0 mA
14.0 mA
20.0 mA
30.0 mA
00
01
10
11
-10 dBm
-2 dBm
6 dBm
10 dBm
Conditions: VDD = 3.0V, VSS = 0V, TA
= 27oC, Load impedance = 400
.
Table 17 RF output power setting for the nRF905.
9.5
Modulation
The modulation of nRF905 is Gaussian Frequency Shift Keying (GFSK) with a data-rate
of 100kbps. Deviation is
±
50kHz. GFSK modulation results in a more bandwidth
effective transmission-link compared with ordinary FSK modulation.
The data is internally Manchester encoded (TX) and Manchester decoded (RX). That is,
the effective symbol-rate of the link is 50kbps. By using internally Manchester
encoding, no scrambling in the u-controller is needed.
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NRF9E5-EVKIT915 制造商:未知廠家 制造商全稱:未知廠家 功能描述:433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
NRF9E5IC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
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