參數(shù)資料
型號: STB5600
廠商: 意法半導(dǎo)體
英文描述: GPS RF FRONT-END IC
中文描述: GPS射頻前端IC
文件頁數(shù): 7/10頁
文件大?。?/td> 72K
代理商: STB5600
A.2 IF Filter
The recommended
IF filter
is shown in figure 5. The stop band of the filter is to reject the alias images
around 12MHz,and around28MHz, where it shouldhave at least 15dBc rejection.
Note that the mixeroutput is low impedance,(70 Ohms),and the IF input is high impedance(15kOhms),
so considerablevoltagegain is achievedin the impedancematching filter.
The filter also sets the bandwidthof the receiver, using the load impedance with the L/C ratio to set the
filter Q.
If desired, an external resistor may be added in parallel to reduce the Q. Note that the
bandwidth must be much wider than the 2MHz needed to pass the power of the GPS signal... it must
maintain linear phase across the 2MHz, even at the extremesof componenttolerance.
Fig. 4 MatchingNetworkwith fourelements
Fig. 5 IF Filter
STB5600
7/10
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PDF描述
STB5610 GPS RF FRONT-END IC
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STB5610 功能描述:射頻無線雜項 GPS Front-End RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel
STB5610TR 功能描述:射頻無線雜項 GPS RF Front End RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel
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