The **LOR318-R01-G** belongs to the family of high-performance optoelectronic components, specifically categorized as an **Infrared Receiver Module** (often used for IR remote control systems). These modules are designed to receive infrared signals, amplify them, and demodulate the data for a microcontroller. --- ### 1. Key Technical Specifications The following table outlines the typical electrical and physical characteristics of this component series: | Parameter | Typical Value | Unit | | :--- | :--- | :--- | | **Carrier Frequency** | 38.0 (Standard) | kHz | | **Supply Voltage (Vcc)** | 2.7 to 5.5 | V | | **Supply Current** | 0.5 to 1.5 | mA | | **Reception Distance** | 10 - 15 | Meters | | **B.W. (Bandwidth)** | +/- 2 | kHz | | **Peak Wavelength** | 940 | nm | --- ### 2. Internal Block Diagram Functions The LOR318-R01-G is an integrated circuit (IC) that combines several electronic stages into a single three-pin package: * **Photodiode:** Converts the incoming IR light into a small electrical current. * **Preamplifier:** Boosts the weak signal from the photodiode. * **Automatic Gain Control (AGC):** Adjusts sensitivity to prevent saturation from bright ambient light or nearby transmitters. * **Band Pass Filter:** Filters out noise and only allows the specific carrier frequency (e.g., 38kHz) to pass. * **Demodulator & Schmitt Trigger:** Strips away the carrier wave and outputs a clean square wave (Digital Logic) representing the original data. --- ### 3. Pin Configuration The device typically features three pins. While you should always verify with the specific datasheet, the standard layout is: 1. **OUT (Signal):** Connected to the GPIO pin of a microcontroller (active low). 2. **GND (Ground):** Connected to the 0V power rail. 3. **Vcc (Power):** Connected to the positive supply (3.3V or 5V). --- ### 4. Application Circuit Example To ensure stable operation, a simple RC filter is often recommended on the power line to reduce noise: ```cpp // Typical Arduino usage pseudo-code int irPin = 2; // Connected to 'OUT' pin of LOR318 void setup() { pinMode(irPin, INPUT); Serial.begin(9600); } void loop() { int status = digitalRead(irPin); if (status == LOW) { // IR signal detected (Active Low logic) Serial.println("Signal Received"); } } ``` --- ### 5. Common Use Cases * **Consumer Electronics:** TV, DVD players, and Air Conditioning remote receivers. * **Industrial:** IR data transmission and wireless switches. * **Robotics:** Obstacle detection (when used with an IR LED) and remote command execution.