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參數(shù)資料
| 型號(hào)： | MRF24J40-IMM |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | IEEE 802.15.4⑩ 2.4 GHz RF Transceiver |
| 中文描述： | IEEE 802.15.4標(biāo)準(zhǔn)⑩2.4 GHz射頻收發(fā)器 |
| 文件頁數(shù)： | 24/66頁 |
| 文件大?。?/td> | 748K |
| 代理商： | MRF24J40-IMM |
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MRF24J40
DS39776A-page 22
Advance Information
2006 Microchip Technology Inc.
6.3
PHY Initialization
The physical layer of the MRF24J40 controls the current
levels going to different sections of the device, as well as
thresholds and controls used in packet reception and
transmission. There are several registers that may
require modification in order to operate in the
application’s intended mode.
Note:
The RSSI threshold defaults to ‘
0
’, how-
ever, it can be set to a user-defined RSSI
threshold limit. Please note, any RSSI
value resulting from a CCA request that is
below the RSSI threshold limit will result in
a failure.
REGISTER 6-2:
RFCTRL2: RF CONTROL REGISTER 2
R/W-0
RFPLL
(1)
bit 7
R/W-0
R/W-0
R/W-0
R/W-0
U-0
—
U-0
—
U-0
—
r
r
r
r
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
RFPLL:
RF-PLL Control bit
(1)
1
= PLL enabled
0
= PLL disabled
Reserved:
Maintain as ‘
0
’
Unimplemented:
Read as ‘
0
’
bit 6-3
bit 2-0
Note 1:
PLL must be enabled for RF reception or transmission.
REGISTER 6-3:
RFCTRL3: RF CONTROL REGISTER 3
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
U-0
—
U-0
—
U-0
—
TXPOWER<7:3>
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-3
TXPOWER7:TXPOWER3:
Small Scale Control for TX Power in dB bits
00000
= 0 dB
00001
= -1.25 dB
00010
= -2.5 dB
00011
= -3.75 dB
00100
= -5 dB
00101
= -6.25 dB
00110
= -7.5 dB
00111
= -8.75 dB
…
11111
= -38.75 dB
Unimplemented:
Read as ‘
0
’
bit 2-0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MRF24J40MA | 制造商:Microchip Technology Inc 功能描述:WIRELESS TRANCEIVER MODULE, Supply Voltage Min:2.4V, Supply Voltage Max:3.6V, MS |
| MRF24J40MA-I/RM | 功能描述:Zigbee/802.15.4模塊 2.4GHz IEEE 802.15.4 Transceiver Module RoHS:否 制造商:Digi International 頻帶:902 MHz to 928 MHz 視線范圍: 數(shù)據(jù)速率: 靈敏度: 工作電源電壓:2.4 V to 3.6 V 傳輸供電電流:215 mA 接收供電電流:26 mA 輸出功率:250 mW 天線連接器類型:Wire 最大工作溫度:+ 85 C 尺寸:32.94 mm x 22 mm x 2.03 mm |
| MRF24J40MAT-I/RM | 功能描述:射頻接收器 2.4GHz IEEE 802.15.4 Transceiver Module RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MRF24J40MB-I | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:IEEE 802.15.4a?￠ 2.4 GHz RF Transceiver |
| MRF24J40MB-I/RM | 功能描述:Zigbee/802.15.4模塊 2.4GHz, 802.15.4 Xcvr w/int PA RoHS:否 制造商:Digi International 頻帶:902 MHz to 928 MHz 視線范圍: 數(shù)據(jù)速率: 靈敏度: 工作電源電壓:2.4 V to 3.6 V 傳輸供電電流:215 mA 接收供電電流:26 mA 輸出功率:250 mW 天線連接器類型:Wire 最大工作溫度:+ 85 C 尺寸:32.94 mm x 22 mm x 2.03 mm |
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