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AN149
AN149
CMT2300AW RF Parameter Configuration Guideline
Overview
This document introduces the RF parameter configuration, OOK and FSK modulation parameter configuration
for CMT2300AW RFPDK.
The product models covered in this document are shown in the table below.
Table 1. Product Models Covered in This Document
Frequency
Modem
Function
Configuration
Package
Part No.
Transceiver
Register
QFN16
CMT2300AW
127 - 1020MHz
(G)FSK/OOK
Before reading this document, it is recommended to read AN142-CMT2300AW Quick Start Guideline to learn the basic usage of
CMT2300AW.
©
Rev 1.0 | 1/12
www.cmostek.com
Copyright
By CMOSTEK
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Summary of Contents for CMOSTEK CMT2300AW
- Page 1 Package Part No. Transceiver Register QFN16 CMT2300AW 127 - 1020MHz (G)FSK/OOK Before reading this document, it is recommended to read AN142-CMT2300AW Quick Start Guideline to learn the basic usage of CMT2300AW. © Rev 1.0 | 1/12 www.cmostek.com Copyright By CMOSTEK...
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Page 2: Table Of Contents
1.3 FSK Demodulation Configuration ........................5 1.4 CDR Design Index and Mode Selection ......................6 1.5 Register Classification and Use in the Tx Bank ....................10 2 Revise History ..........................11 3 Contacts ............................12 Rev 1.0 | 2/12 www.cmostek.com... -
Page 3: Tx And Rx Parameter Configuration
40 ppm. The user should consider the worst case to set these two tolerance values, which affect every bandwidth setting within the receiver. Rev 1.0 | 3/12 www.cmostek.com... -
Page 4: Ook Demodulation Configuration
CDR Type how to use CDR in detail. How to input Parameters when CDR = Tracing. The later chapter will CDR Range describe how to use CDR in detail. Rev 1.0 | 4/12 www.cmostek.com... -
Page 5: Fsk Demodulation Configuration
How to input parameters when CDR = Tracing. The later chapter will CDR Range describe how to use CDR in detail. Data Select the two frequencies of the (G)FSK, which represents 0 and which Representation represents 1. The default configuration is usually selected. Rev 1.0 | 5/12 www.cmostek.com... -
Page 6: Cdr Design Index And Mode Selection
RFPDK. Users do not have to select. Automatically select in conjunction with other configurations in CDR_BR_TH<15:8> RFPDK. Users do not have to select. The contents and explanations of the register can be seen in the following table. Rev 1.0 | 6/12 www.cmostek.com... - Page 7 In tracing mode, select the method to detect the symbol rate: 0：Method 0 1：Method 1 The default selection is method 1. CDR_3RD_EN In tracing mode, enable the symbol rate detection when the consecutive three symbols do not skip: 0：Disable 1：Enable Rev 1.0 | 7/12 www.cmostek.com...
- Page 8 (0x2E) CMT2300AW clock recovery related parameters are stored in the symbol rate bank, automatically configured through the RFPDK. If users do not have special requirements, they do not need to understand the contents of the register described above. Here we introduce the design index and mode selection method of clock recovery.
- Page 9 The user might ask why not directly select the maximum range of tracking. This is because the larger the tracking range, the harder it is to track, and the more time it takes. Therefore, it is recommended that the user select the most appropriate range according to the actual application requirement. Rev 1.0 | 9/12 www.cmostek.com...
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Page 10: Register Classification And Use In The Tx Bank
LBD threshold usage, please refer to the related content of "Low Battery Detection (LBD)" in the next chapter. The user does not need to know the contents of the register, and can configure the target accordingly, minimizing the number of registers to write. Rev 1.0 | 10/12 www.cmostek.com... -
Page 11: Revise History
2 Revise History Table 7. Revise History Records Version No. Chapter Description Date Initial release 2017-03-24 Add the advice to read AN142; Modify individual typos 2017-07-12 Update RFPDK screenshot to keep consistent with the latest software 2020-05-22 Rev 1.0 | 11/12 www.cmostek.com... -
Page 12: Contacts
The material contained herein is the exclusive property of CMOSTEK and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of CMOSTEK. CMOSTEK products are not authorized for use as critical components in life support devices or systems without express written approval of CMOSTEK.
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