need of long range IR transmiter - Page 5 - Electronic Circuits Projects Diagrams Free

audioguru · 6th January 2007, 03:38 AM

I couldn't find the TSOP part number you listed.
A TSOP IR receiver starts with high gain then it reduces the gain if the input pulses are continuous because it thinks they are interference from compact fluorescent lights. The datasheet shows that bursts of pulses must be used (it says how many pulses in each burst and how much pause between bursts) for the gain to remain high.

The output is low current but can turn on a powerful PNP transistor through a series resistor. You don't need a comparator nor a PIC.

mvs sarma · 6th January 2007, 06:05 AM

Hi
see the url below. it is a vishay pert
http://www.ortodoxism.ro/datasheets/vishay/82228.pdf

audioguru · 6th January 2007, 07:08 AM

www.datasheetarchive.com has never heard of the TSOP32238 IR receiver but knows about many other TSOP ones.

mvs sarma · 6th January 2007, 12:09 PM

Quote:

Originally Posted by audioguru

www.datasheetarchive.com has never heard of the TSOP32238 IR receiver but knows about many other TSOP ones.

HI Audioguru,

have you not seen the attached file ? it was a download from them only-- but a series is covered where TSOP32238 is one of them

Details are avilable

captnstoed · 6th January 2007, 01:17 PM

Great .... at least I have something to go on. I'll give another try today and let you know of the outcome.
Thanks

shyam4uall · 14th September 2008, 02:05 PM

how to create bursts using two 555 timer?Can anyone give me a circuit diagram ??

I am not using any PIC so these option is out.I am using one 555 timer to generate 33 Khz (TSOP 1333) but its continous one.How can the 2nd 555 timer be connected to create the bursts ?

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6th January 2007, 03:38 AM	(permalink)
audioguru	I couldn't find the TSOP part number you listed. A TSOP IR receiver starts with high gain then it reduces the gain if the input pulses are continuous because it thinks they are interference from compact fluorescent lights. The datasheet shows that bursts of pulses must be used (it says how many pulses in each burst and how much pause between bursts) for the gain to remain high. The output is low current but can turn on a powerful PNP transistor through a series resistor. You don't need a comparator nor a PIC. __________________ Uncle $crooge

6th January 2007, 06:05 AM	(permalink)
mvs sarma	Hi see the url below. it is a vishay pert http://www.ortodoxism.ro/datasheets/vishay/82228.pdf __________________ Regards, Sarma.

6th January 2007, 07:08 AM	(permalink)
audioguru	www.datasheetarchive.com has never heard of the TSOP32238 IR receiver but knows about many other TSOP ones. __________________ Uncle $crooge

6th January 2007, 01:17 PM	(permalink)
captnstoed	Great .... at least I have something to go on. I'll give another try today and let you know of the outcome. Thanks

14th September 2008, 02:05 PM	(permalink)
shyam4uall	how to create bursts using two 555 timer?Can anyone give me a circuit diagram ?? I am not using any PIC so these option is out.I am using one 555 timer to generate 33 Khz (TSOP 1333) but its continous one.How can the 2nd 555 timer be connected to create the bursts ?