XE1203F データシートの表示（PDF） - Semtech Corporation
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XE1203F Datasheet PDF : 36 Pages
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XE1203F
Table of Contents
1
2
3
3.1
3.2
3.2.1
3.2.2
4
4.1
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.1.7
4.1.8
4.2
4.2.1
4.2.2
4.3
4.3.1
5
5.1
5.2
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
5.3
5.3.1
5.4
5.5
5.6
6
6.1
6.2
6.3
6.4
6.5
7
Functional Block Diagram...................................................................................................................3
Pin Description.....................................................................................................................................4
Electrical Characteristics ....................................................................................................................5
Absolute Maximum Operating Ranges ..................................................................................................5
Specifications .........................................................................................................................................5
Operating Range....................................................................................................................................5
Electrical Specifications .........................................................................................................................5
General Description .............................................................................................................................7
The Receiver Section.............................................................................................................................7
LNA & Receiver modes..........................................................................................................................8
Demodulation chain ...............................................................................................................................8
Demodulator...........................................................................................................................................8
Bit synchronizer......................................................................................................................................9
The DATA and DATAIN pins .................................................................................................................9
Pattern recognition block......................................................................................................................10
RSSI .....................................................................................................................................................10
Frequency Error Indicator – FEI...........................................................................................................12
The Transmitter Section.......................................................................................................................13
Transmitter ...........................................................................................................................................13
Barker encoder/decoder ......................................................................................................................15
The Frequency Synthesizer .................................................................................................................17
Clock Output for external processor ....................................................................................................17
Serial Interface Definition And Principles Of Operation ................................................................18
Serial Control Interface ........................................................................................................................18
Configuration and Status registers.......................................................................................................20
The ConfigSwitch Register...................................................................................................................20
RTParam Configuration Register.........................................................................................................22
FSParam Configuration Register .........................................................................................................23
SWParam Configuration Register - switching parameters ..................................................................24
DataOut Status Register ......................................................................................................................25
ADParam Configuration Register.........................................................................................................25
Pattern register.....................................................................................................................................27
Test Registers and additional settings .................................................................................................28
Operating Modes..................................................................................................................................28
Standard power up sequence for the receiver and transmitter ............................................................28
Selection of the reference frequency ...................................................................................................29
Clock Output Interface .........................................................................................................................30
Default settings at power-up ................................................................................................................30
Application Information.....................................................................................................................31
Matching network of the receiver .........................................................................................................31
Matching network of the transmitter.....................................................................................................31
VCO tank..............................................................................................................................................34
Loop filter of the frequency synthesizer................................................................................................34
Reference crystal for the frequency synthesizer ..................................................................................35
Packaging information ......................................................................................................................36
© Semtech 2007
www.semtech.com
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