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Chip Amps Amplifiers based on integrated circuits

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Old 6th November 2007, 03:26 PM   #31
banana is offline banana  Hong Kong
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Join Date: Feb 2003
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Page 1 of the IR receiver schematic.

IR photodiode -> I/V converter -> 16.384KHz bandpass filter -> Diode peak detect ->>

I cannot set the 16K bandpass gain too high, otherwise it'll be interfered by other 38K remote unit in close distance, despite the wide difference in carrier frequency.
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File Type: pdf ir remote receiver pg1.pdf (45.3 KB, 39 views)
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Old 6th November 2007, 03:28 PM   #32
banana is offline banana  Hong Kong
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Join Date: Feb 2003
Location: Hong Kong
Page 2 of the IR receiver schematic.

->> 310/435Hz bandpass filter -> Diode peak detect -> comparator -> H-bridge
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File Type: pdf ir remote receiver pg2.pdf (68.7 KB, 42 views)
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