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Design Note

 

  DN022

 

 
 

 

SWRA215E 

 

Page 1 of 8  

CC110x/CC111x OOK/ASK Register Settings 

 

 

By Sverre Hellan

 

 

 

 

Keywords 

 

 

OOK 

 

ASK 

 

PER (Packet Error Rate) 

 

CC1100 

 

CC1100E 

 

CC1101 

 

CC1110 

 

CC1111 

 

CC430 

 

 

 
 
 

1  Introduction 

This  design  note  provides  guidelines  for 
finding  optimum  register  settings  for 
OOK/ASK operation. The starting point for 
the  optimization  is  the  preferred  settings 
given  by  the  SmartRF

®

  Studio  SW.  The 

user  needs  to  measure  the  sensitivity 
(PER) over the full input dynamic range to 
determine the optimum settings. 

This  design  note  uses  CC1101  as  an 
example  on  how  to  find  optimum  register 
settings,  but  it  is  also  applicable  for 
CC1100,  CC1100E,  CC1110,  CC1111, 
and CC430. 

 
 
 

Summary of Contents for CC110 Series

Page 1: ...es for finding optimum register settings for OOK ASK operation The starting point for the optimization is the preferred settings given by the SmartRF Studio SW The user needs to measure the sensitivit...

Page 2: ...PROCEDURE FOR FINDING OOK ASK SETTINGS USING SMARTRF STUDIO 5 4 GENERAL INFORMATION 8 4 1 DOCUMENT HISTORY 8 2 Abbreviations AGC Automatic Gain Control ASK Amplitude Shift Keying EM Evaluation Module...

Page 3: ...1 or 0x92 In the example shown in Figure 2 the best sensitivity is achieved with AGCCTRL2 0x04 AGCCTRL1 0x00 and AGCCTRL0 0x92 Please note that optimum register settings change with data rate so it is...

Page 4: ...e FSCTRL1 setting using one of the preferred RX filter bandwidth settings in SmartRF Studio see Figure 3 If the wanted RX filter bandwidth is not given by one of the preferred settings choose the FSCT...

Page 5: ...bandwidth 325 kHz FIFOTHR 0x07 RX filter bandwidth 325 kHz FIFOTHR 0x47 3 3 Procedure for Finding OOK ASK Settings using SmartRF Studio As an example assume 4 8 kBaud data rate and 203 kHz RX filter...

Page 6: ...Change the data rate and the RX filter bandwidth to the wanted values Change the modulation format to ASK OOK Press Reset CC1101 and write settings if SmartRF Studio is being used to control a CC1101E...

Page 7: ...d in Section 3 1 Make sure the FSCTRL1 FIFOTHR FREND1 TEST2 and TEST1 registers are set as explained in Section 3 2 It is possible to print the register settings to a file using Export CC1101 Register...

Page 8: ...Changes SWRA215E 2012 03 08 Changed document name from CC11xx OOK ASK Register Settings to CC110x CC111x OOK ASK Register Settings SWRA215D 2012 02 10 Corrected error in RX BW on page 5 SWRA215C 2012...

Page 9: ...or use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have...

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