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TH71081EDC

868/915MHz ASK Transmitter / LO Source

Melexis Microelectronic Systems  

Not recommended for new designsTH71081

868/915MHz

ASK Transmitter / LO Source

Document Content

1 Theory of Operation ...................................................................................................3

1.1 General................................................................................................................................. 3

1.2 Block Diagram ...................................................................................................................... 3

2 Functional Description ..............................................................................................4

2.1 ASK Modulation.................................................................................................................... 4

2.2 Frequency Modulation .......................................................................................................... 4

2.3 LO Source ............................................................................................................................ 4

2.4 Mode Control Logic .............................................................................................................. 4

3 Pin Definition and Description ..................................................................................5

4 Electrical Characteristics ..........................................................................................6

4.1 Absolute Maximum Ratings.................................................................................................. 6

4.2 Normal Operating Conditions ............................................................................................... 6

4.3 Crystal Parameters............................................................................................................... 6

4.4 DC Characteristics................................................................................................................ 7

4.5 AC Characteristics................................................................................................................ 7

4.6 Output Power Selection........................................................................................................ 7

5 Test Circuit .................................................................................................................8

5.1 Test circuit component list to Fig. 2 ...................................................................................... 8

6 Spectrum Plots...........................................................................................................9

7 Package Information ................................................................................................10

8 Reliability Information..............................................................................................11

9 ESD Precautions ......................................................................................................11

10 Disclaimer .................................................................................................................12

3901071081

Rev. 009

Page 2 of 12

Data Sheet

May/05

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