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參數(shù)資料
| 型號： | TDA5221 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | ASK/FSK Single Conversion Receiver |
| 中文描述： | 詢價/ FSK信號單一轉(zhuǎn)換接收器 |
| 文件頁數(shù)： | 30/44頁 |
| 文件大?。?/td> | 705K |
| 代理商： | TDA5221 |
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Applications
4 - 10
TDA 5221
preliminary
Wireless Components
Target Specification, October 2001
f
3
is the 3dB cutoff frequency of the data filter - see Section 4.2.
Example:
R = 100k
,
=
C = 47nF
This leads tof
1
= 44Hz and f
2
= 485Hz
4.6.2
ASK Mode
In case the receiver is operated in ASK mode the datapath frequency charac-
tersitic is dominated by the data filter alone, thus it is lowpass shaped.The cutoff
frequency is determined by the external capacitors C12 and C14 and the inter-
nal 100k resistors as described in Section 4.2
freq_ask.WMF
Figure 4-9
Frequency charcteristic in case of ASK mode
1
1
2
11
f
f
v
f
=
=
dB
f
f
3
3
=
0dB
-3dB
f
-40dB/dec
f3dB
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| TDA5230 | 功能描述:射頻接收器 LW PWR ASK/FSK SNGL CONVERSN MULT-CHAN 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 |
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