can we use tsop1738 instead of tsop1736

hello sir,
i am doing project 'control pc using tv remote using 8051'.
i searched various shops for tsop1736 but this ir sensor is not available.....
so my question is can i use tsop1738 instead of tsop1736 ?......
if yes then tell me which kind of changes i have to do........and
if not then tell me an alternative for this ir sensor.....plz help me

The tsop1736 works at 36 kHz
the tsop1736 works at 38 kHz.
Otherewise they are the same.

You will need to find a transmitter that
works at 38 kHz.
I don't know how common they are.
You will just have to try a few.

This is an old project.
Make sure PCcontrol.exe runs on your system.

PCcontrol.exe uses com1,com2 or com3.
If using a USB serial adapter you will need to re-name
the USB com port eg 'com20' in system settings.

If i found an transmitter and connects tsop1738 ....then which kind of changes i have to do in program....?? And suggest me any other tsop which i can use for 36khz

This project is for a transmitter using the Philips RC5 format.
For any other type the code will need a large re-write.

The RC5 format does not specify the Infrared carrier frequency,
so modern versions my be 38KHz.
If you have a 38KHz, RC5 format remote,
the code should not need any changes.

I have to say I have a box of remotes and not one
works with any TV or DVD etc, other that the one it came with.
Don't try this project unless you are sure you have a Philips RC5 format
remote control.

These are possible modern alternatives to the TSOP1736
but check the pinout.
TSOP4136
TSOP2136

More specialised
TSOP4336
TSOP2336
TSOP4536
TSOP2536

Many PCs don't have a serial port, so you might need a
USB/serial adapter.
If you use a USB/serial adapter you don't need the
MAX232 chip in the diagram.