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Description: 1. TSOP1838 is a compact infrared receiver module designed for remote control applications in the 38 kHz IR frequency range, commonly used in home appliances and consumer electronics. 2. Size & Design: With dimensions of approximately 16.5mm x 9mm, this surface-mount component features a small footprint, making it an ideal choice for space-constrained projects. It comes in a plastic SOP (Side Open Packaging) package with four pins. 3. Connection: TSOP1838 has four pins – VCC, GND, Data In, and Emitter. Typically, the VCC pin is connected to a voltage source between 3V to 5V, while the GND pin is connected to ground. The Data In pin is connected to a microcontroller input pin for signal processing. 4. Operating Principle: TSOP1838 decodes IR signals sent from remote controls using an internal photodiode and infrared detection circuit. It converts the received IR signals into digital data, which can be processed by a microcontroller or other electronic devices. 5. Frequency Range &
| Specification | Details |
|---|---|
| Package | 6-pin SMD package |
| Operating Frequency | 39 kHz - 43 MHz (infrared) |
| Sensitivity | High sensitivity |
| Supply Voltage | 2.0V to 5.5V (DC) |
| Current Consumption | Typical: 1mA Maximum: 10mA |
| Temperature Range | -20°C to +80°C (storage) -40°C to +85°C (operating) |
| Modulation Type | ASK (Amplitude Shift Keying) |
| Data Rate | Up to 2.4 kbps |
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