Joined: 16 October 2008
Location: IT
Posts: 2

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hi, what type of decoding comes made on-chip from mlx90109? manchester but what kind? diphase coding? I need a diphase coding so the speed pin is set to 2k or 4k? and modu? or the solution is that I make my diphase codin by external processor and mlx90109 give me a non decoded signal....

Joined: 1 February 2006
Location: CH
Posts: 104

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Dear,

The MLX90109 integrates two types of decoding, Manchester (phase encoding) and Biphase. The corresponding decoder can be selected by the pin MODE (0: Biphase, 1; Manchester).

To decode the "conditioned diphase encoding"(Differential Manchester Encoding), you will have to use the MLX90109 in direct mode with the pin MODE floating (internal decoder bypassed). Please not that the CLOCK pin will not be available in this mode.

Then the external micro controller needs to integrates the "DME" processing to be able to understand the information from the TAG.

Best Regards
Denis

Joined: 16 October 2008
Location: IT
Posts: 2

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Thank's a lot for the info and sorry for my English and if I have written in discourteous way I apologize me.
Good job and best Regards,
Paolo