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TDA5200 Datasheet(PDF) 27 Page - Infineon Technologies AG |
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TDA5200 Datasheet(HTML) 27 Page - Infineon Technologies AG |
27 / 39 page TDA 5200 ASK Single Conversion Receiver Applications Data Sheet 27 Revision 3.0, 2010-12-28 4.5 Data Slicer Threshold Generation The threshold of the data slicer can be generated in two ways, depending on the signal coding scheme used. In case of a signal coding scheme without DC content such as Manchester coding the threshold can be generated using an external RC-Integrator as shown in Figure 9. The time constant T A of the RC-Integrator has to be significantly larger than the longest period of no signal change T L within the data sequence. In order to keep distortion low, the minimum value for R is 20 kΩ. Figure 9 Data Slicer Threshold Generation with External R-C Integrator Another possibility for threshold generation is to use the peak detector in connection with two resistors and one capacitor as shown in the following figure. The component values are depending on the coding scheme and the protocol used. Figure 10 Data Slicer Threshold Generation Utilizing the Peak Detector Pins: 20 19 R C 25 data out Uthreshold data slicer data filter Pins: 20 19 25 data out Uthreshold data slicer data filter 26 peak detector C R R |
Similar Part No. - TDA5200_10 |
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Similar Description - TDA5200_10 |
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