Research
Features of the TSOP-382
- Very low supply
- Photo detector and preamplifier in one package
- Internal filter for PCM frequency
- Improved shielding against EMI
- Supply voltage: 2.5 V to 5.5 V
- Improved immunity against ambient light
- Insensitive to supply voltage ripple and noise
Frequency Response Graph
Block Diagram
Backup Plan
The backup plan for the IR reception block of the project is to use a phototransistor to sense incoming light from IR LED’s. In addition to the phototransistor, the reception block will include a band pass filter in order to filter out the ambient light that could interfere with our signal. This plan would solve the problem of IR reception; however, it would have a high probability of interference, since the filters would not be as exact as the ones in the IR receiver.
Part
The phototransistor we would be using if the IR receiver did not work would be the PT334-6C from Everlight. This phototransistor was selected because its wavelength of peak sensitivity is the same as our IR LED’s peak wavelength (940 nm). The filter would be a passive filter simply made of resistors and capacitors.
Simple schematic
Below is a simple application schematic