參數(shù)資料
型號(hào)： MICRF405YML TR
廠商： Micrel Inc
文件頁(yè)數(shù)： 30/46頁(yè)
文件大小： 649K
描述： TRANSMITTER ASK/FSK 24-MLF
標(biāo)準(zhǔn)包裝： 1
頻率： 290MHz ~ 980MHz
應(yīng)用： ISM
調(diào)制或協(xié)議： ASK，F(xiàn)SK
數(shù)據(jù)傳輸率 - 最大： 200 kbps
功率 - 輸出： 10dBm
電流 - 傳輸： 18mA
數(shù)據(jù)接口： PCB，表面貼裝
天線連接器： PCB，表面貼裝
電源電壓： 2.2 V ~ 3.6 V
工作溫度： -40°C ~ 125°C
封裝/外殼： 24-VFQFN 裸露焊盤，24-MLF?
包裝： 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁(yè)面： 571 (CN2011-ZH PDF)
其它名稱： 576-1965-6
Micrel
MICRF405
 
 
 
 
April 2006 
30
M9999-041906
 (408) 955-1690
 
Bit Rate Settings
The bit rate is set separately for ASK and FSK
modulation to support ASK modulation with FSK
spreading. The FSK bit rate is set with the two
parameters FSKClk_K and FSKn. The relationship is
FSKn
XTAL
K
FSKClk
f
BR
+
?/DIV>
=
3
2
_
 
(1)
where:
BR: Bit rate.
fXTAL: Crystal oscillator frequency.
FSKClk_K: Integer in the range [1..63] (6 bit).
FSKn: Integer in the range [0..5] (3 bit).
A procedure to find the settings for the desired bit
rate is described below:
1.   Set FSKn to 0.
2.   Calculate FSKClk_K by using this formula:
FSKn
XTAL
BR
f
K
FSKClk
+
?/DIV>
=
3
2
_
 
3.   If FSKClk_K is too high, increment FSKn by
one, and then jump to 2.
In some cases, several combinations of FSKClk_K
and FSKn will give the bit rate. If VCO modulation is
selected, Modulation[1:0] < 2, then the lower FSKn
the better shaping of the signal. However in some
cases, low FSKn causes the modulator to saturate
(Please see the section Modulator for details). When
Manchester encoding is enabled, Manchester_en=1,
FSKn needs to bigger than zero for the modulator to
operate properly.
When sending ASK with FSK spreading, FSKClk_K
and FSKn set the speed of the FSK spreading.
The bit rate of the ASK is set similar with the two
parameters ASKClk_K and ASKn. The relationship
is now:
ASKn
XTAL
K
ASKClk
f
BR
+
?/DIV>
=
5
2
_
 
(2)
where the new parameters are:
ASKClk_K: Integer in the range [1..63] (6 bits).
ASKn: Integer in the range [0..3] (2 bits).
A procedure for finding a bit rate will be equal to
FSK, but with this formula:
ASKn
XTAL
BR
f
K
ASKClk
+
?/DIV>
=
5
2
_
 
Due to the high flexibility of the modulator, a brief
explanation of how it works will ease the use of it.
Figure 15 shows a block diagram of the components
of the modulator.
 
Modulator
Adr
Data
A6..A0
D7
D6
D5
D4
D3
D2
D1
D0
0001110
Mod_I4=0
Mod_I3=1
Mod_I2=0
Mod_I1=0
Mod_I0=1
Mod_A2=0
Mod_A1=1
Mod_A0=1
0001111    VCO_Fr_Chk=0    VCO_Fr_Auto=0
FSKn2=1
FSKn1=0
FSKn0=0
Mod_F2=1
Mod_F1=0
Mod_F0=0
0010000    MOD_TEST1=0    Prescaler_Sel=0    FSKClk_K5=1     FSKClk_K4=1     FSKClk_K3=0     FSKClk_K2=1     FSKClk_K1=0     FSKClk_K0=0
 
 
 
Figure 15. Modulator Block Diagram.
 
相關(guān)PDF資料
PDF描述
MTX-102-433DR-B MODULE TRANSMITTER 433MHZ 18DIP
MTX-103-915DR-B MODULE TRANSMITTER 915MHZ 18DIP
MTX-405-433DR-B MODULE TRANSMITTER 433MHZ 24DIP
N50P105 IC MODULE MINI JOYSTICK SMD
OCB350L187Z BOARD CALIBR CIRCUIT OPB350L187
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MICRF500 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:700MHz to 1.1GHz RadioWire RF Transceiver
MICRF500BLQ 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:700MHz to 1.1GHz RadioWire RF Transceiver
MICRF500BLQ TR 功能描述:射頻接收器 700-1000MHz, 3.0V, FSK, FH Transceiver 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
MICRF500BLQTR 功能描述:TXRX UHF 700-1100MHZ 44-LQFP RoHS:否 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數(shù)據(jù)傳輸率 - 最大:54Mbps 調(diào)制或協(xié)議:* 應(yīng)用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲(chǔ)容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件
MICRF500EVAL1 功能描述:射頻開發(fā)工具 MICRF500 Evaluation Kit - For experimental use only RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類型:Wireless Audio 工具用于評(píng)估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*