MLX71121

300 to 930MHz

FSK/OOK Receiver

39010 71121

Page 2 of 29

Data Sheet

Rev. 012

Mar/15

Table of Contents

1.1

  General ................................................................................................................................ 4 

1.2

  Technical Data Overview ..................................................................................................... 4 

1.3

  Block Diagram...................................................................................................................... 5 

1.4

  Operating Modes ................................................................................................................. 6 

1.5

  LNA Selection ...................................................................................................................... 6 

1.6

  Mixer Section ....................................................................................................................... 7 

1.7

  IF Filter................................................................................................................................. 7 

1.8

  IF Amplifier........................................................................................................................... 7 

1.9

  PLL Synthesizer................................................................................................................... 7 

1.10

 

Reference Oscillator ......................................................................................................... 8

 

1.11

 

Clock Output ..................................................................................................................... 8

 

1.12

 

FSK Demodulator ............................................................................................................. 8

 

1.13

 

Baseband Data Path ........................................................................................................ 9

 

1.14

 

Data Filter ....................................................................................................................... 10

 

1.15

 

Data Slicer ...................................................................................................................... 10

 

1.15.1

 

Averaging Detection Mode ..................................................................................................... 11

 

1.15.2

 

Peak Detection Mode ............................................................................................................. 11

 

1.16

 

Data Output and Noise Cancellation Filter ..................................................................... 12

 

2.1

  Frequency Planning ........................................................................................................... 14 

2.2

  Calculation of Frequency Settings ..................................................................................... 15 

2.3

  Standard Frequency Plans ................................................................................................ 16 

2.4

  433/868MHz Frequency Diversity...................................................................................... 16 

4.1

  Absolute Maximum Ratings ............................................................................................... 21 

4.2

  Normal Operating Conditions............................................................................................. 21 

4.3

  DC Characteristics ............................................................................................................. 22 

4.4

  AC System Characteristics ................................................................................................ 23 

4.5

  External Components ........................................................................................................ 24