Tsop1738

Thread Starter

poorvaja1992

Joined Apr 5, 2011
1
Hi,
I am trying to construct a remote controlled switch. The ckt involves TSOP 1738. Can any TV remote be used as the transmitter(38kHz)??
I tried using a tv remote which i had but the output at the output pin of the TSOP always remains at 2.05 V!!
Can anyone plz help me with dis??:confused:
 

Audioguru

Joined Dec 20, 2007
11,249
TV remotes use many frequencies up to 56kHz. There were 7 different TSOP17xx frequencies but it is not made anymore.

The TSOP1738 uses a filtered 5V supply. With no signal its output is 5V with almost no current. Its output goes to near 0V when it detects a burst of 38kHz.
 
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