Details

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BUY TSOP38238 https://www.utsource.net/itm/p/6591636.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	VCC	2.5	3.3	5.5	V	Power supply voltage
Operating Current	ICC	-	0.4	1	mA	Current consumption in operating mode
Output High Voltage	VOH	2.4	-	VCC	V	Output high level voltage
Output Low Voltage	VOL	0	-	0.4	V	Output low level voltage
Output Rise Time	tr	-	10	20	μs	Time for output to rise from 10% to 90% of final value
Output Fall Time	tf	-	10	20	μs	Time for output to fall from 90% to 10% of final value
Modulation Frequency	fM	36	38	40	kHz	Center frequency for IR signal
Bandwidth	BW	4.5	-	5.5	kHz	Bandwidth around the center frequency
Distance Range	DR	-	20	50	cm	Effective distance range for detection

Instructions for TSOP38238

1. Power Supply Connection:

   • Connect the VCC pin to a power supply within the specified range (2.5V to 5.5V).
   • Ensure the GND pin is connected to the ground.

2. Signal Input:

   • The TSOP38238 detects modulated infrared signals typically used in remote controls.
   • Ensure that the IR signal is modulated at the center frequency (38kHz).

3. Output Signal:

   • The output is active low, meaning it pulls low when an IR signal within the specified parameters is detected.
   • Use a pull-up resistor on the output line if interfacing with logic circuits that require a defined high state.

4. Mounting Orientation:

   • Mount the sensor with the photodetector facing the source of the IR signal for optimal performance.

5. Environmental Considerations:

   • Avoid placing the sensor near heat sources or in direct sunlight to prevent interference and ensure reliable operation.

6. Testing:

   • Test the sensor using a known IR remote control to verify functionality.
   • Check the output with an oscilloscope or multimeter set to measure digital signals.

(For reference only)