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Help ID this RF 433MHz transmitter from hella key fob from PSA cars
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rvalente:
Hello mates,

Can anyone help me find this transmitter datasheet? I want to check if i can change the 433mhz modulation from FSK to ASK.

Its from a PSA key fob, my  2011+, as the previous cars uses ASK like mine 307.
ve7xen:
The markings don't seem helpful. If you can get the FCC ID (probably printed on the case), and look that up, the documents might be somewhat enlightening.

It's probably a purpose-specific chip without public data, though.
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