XE1203 Просмотр технического описания (PDF) - Unspecified

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производитель

XE1203

433MHz / 868MHz / 915MHz Low-power, integrated UHF transceiver

Unspecified 

Table of Contents

Data Sheet

XE1203

1 Functional Block Diagram .........................................................................................................................3

2 Pin description............................................................................................................................................4

3 Electrical Characteristics...........................................................................................................................5

3.1 Absolute Maximum Operating Ranges.........................................................................................................5

3.2 Specifications................................................................................................................................................5

3.2.1 Operating Range ...........................................................................................................................................5

3.2.2 Electrical Specifications ................................................................................................................................6

4 General Description....................................................................................................................................8

4.1 Detailed description ......................................................................................................................................8

4.1.1 Introduction....................................................................................................................................................8

4.1.2 Receiver ........................................................................................................................................................8

4.1.3 Demodulation chain ......................................................................................................................................9

4.1.4 The demodulator, ..........................................................................................................................................9

4.1.5 The bit synchronizer....................................................................................................................................10

4.1.6 The barker decoder,....................................................................................................................................11

4.1.7 Pattern recognition block.............................................................................................................................12

4.1.8 High sensitivity vs. high linearity: A-mode, B-mode ....................................................................................13

4.1.9 RSSI ............................................................................................................................................................13

4.1.10Frequency Error Indicator - FEI...................................................................................................................14

4.1.11Transmitter ..................................................................................................................................................15

4.1.12Barker encoding. .........................................................................................................................................17

4.1.13Clock Output for external processor............................................................................................................18

5 Interface definition, Principles of operation ..........................................................................................19

5.1 Serial Control Interface ...............................................................................................................................19

5.2 Configuration and Status registers .............................................................................................................20

5.2.1 Configuration register: general description .................................................................................................21

5.2.2 RTParam configuration register ..................................................................................................................22

5.2.3 FSParam configuration register ..................................................................................................................24

5.2.4 Switching parameters..................................................................................................................................25

5.2.5 DataOut register ..........................................................................................................................................26

5.2.6 ADParam configuration register ..................................................................................................................27

5.2.7 Pattern register............................................................................................................................................29

5.3 Operating Modes ........................................................................................................................................30

5.3.1 Standard power up sequence for the receiver and transmitter...................................................................31

5.4 Selection of the reference frequency..........................................................................................................32

5.5 Clock Output Interface ................................................................................................................................32

5.6 Default settings at power-up.......................................................................................................................32

6 Application Information ...........................................................................................................................33

6.1 Matching network of the receiver................................................................................................................33

6.2 Matching network of the transmitter ...........................................................................................................33

6.3 VCO tank ....................................................................................................................................................34

6.4 Loop filter of the frequency synthesizer......................................................................................................34

6.5 Reference crystal for the frequency synthesizer ........................................................................................35

6.6 Typical application ......................................................................................................................................36

7 Packaging information .............................................................................................................................37

2

D0308-214

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