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TH72015 Datasheet(PDF) 2 Page - Melexis Microelectronic Systems |
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TH72015 Datasheet(HTML) 2 Page - Melexis Microelectronic Systems |
2 / 20 page TH72015 433MHz FSK/ASK Transmitter 3901072015 Page 2 of 20 Data Sheet Rev. 011 Jun/12 Document Content 1 Theory of Operation ...................................................................................................3 1.1 General .............................................................................................................................. 3 1.2 Block Diagram.................................................................................................................... 3 2 Functional Description ..............................................................................................3 2.1 Crystal Oscillator ................................................................................................................ 3 2.2 FSK Modulation ................................................................................................................. 4 2.3 Crystal Pulling .................................................................................................................... 4 2.4 ASK Modulation ................................................................................................................. 5 2.5 Output Power Selection...................................................................................................... 5 2.6 Lock Detection ................................................................................................................... 5 2.7 Low Voltage Detection ....................................................................................................... 5 2.8 Mode Control Logic ............................................................................................................ 6 2.9 Timing Diagrams ................................................................................................................ 6 3 Pin Definition and Description ..................................................................................7 4 Electrical Characteristics ..........................................................................................8 4.1 Absolute Maximum Ratings................................................................................................ 8 4.2 Normal Operating Conditions ............................................................................................. 8 4.3 Crystal Parameters ............................................................................................................ 8 4.4 DC Characteristics ............................................................................................................. 9 4.5 AC Characteristics ........................................................................................................... 10 4.6 Output Power Steps ......................................................................................................... 10 5 Typical Operating Characteristics ..........................................................................11 5.1 DC Characteristics ........................................................................................................... 11 5.2 AC Characteristics ........................................................................................................... 14 6 Test Circuit ...............................................................................................................17 6.1 Test circuit component list to Fig. 18 ................................................................................ 17 7 Package Description ................................................................................................18 7.1 Soldering Information ....................................................................................................... 18 7.2 Recommended PCB Footprints........................................................................................ 18 8 Standard information regarding manufacturability of Melexis products with different soldering processes .................................................................................19 9 ESD Precautions ......................................................................................................19 10 Disclaimer .................................................................................................................20 |
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