TSOP4840
40kHz infrared receivers for remote systems, 35-45m range, 3-pin design
Manufacturer： vishay
series introduction
# TSOP4840 Product Series Introduction
## 1. Overview
The TSOP4840 product series is a cutting - edge line of infrared receivers designed to meet the diverse needs of modern electronic devices. These receivers are engineered with high - precision technology to provide reliable and efficient infrared signal reception, making them an ideal choice for a wide range of applications.
## 2. Key Features
### 2.1 High Sensitivity
The TSOP4840 series offers exceptional sensitivity to infrared signals. This means that it can detect even weak infrared transmissions, ensuring a stable connection between the infrared emitter and the receiver. Whether the device is in a well - lit environment or facing some interference, the high - sensitivity feature allows for accurate signal capture, reducing the chances of signal loss or misinterpretation.
### 2.2 Wide Operating Range
These receivers have a wide operating voltage range, typically from 2.7V to 5.5V. This flexibility makes them compatible with a variety of power sources and electronic systems. Additionally, they can operate effectively within a broad temperature range, usually from - 25°C to + 85°C. This wide temperature tolerance enables the TSOP4840 series to be used in different environmental conditions, such as in automotive interiors, industrial control systems, and home appliances.
### 2.3 Excellent Immunity to Ambient Light
One of the standout features of the TSOP4840 series is its excellent immunity to ambient light. The receivers are equipped with advanced filtering technology that can effectively suppress the influence of sunlight, fluorescent light, and other sources of ambient light. This ensures that the infrared signals are accurately detected and processed, even in brightly lit areas. As a result, the devices using these receivers can operate reliably without being affected by external light interference.
### 2.4 Low Power Consumption
In today's energy - conscious world, the TSOP4840 series stands out with its low power consumption. The receivers are designed to minimize power usage while maintaining high performance. This is particularly beneficial for battery - powered devices, as it helps to extend the battery life and reduce the overall energy consumption of the system.
### 2.5 Compact Design
The TSOP4840 series comes in a compact and lightweight package. This small form factor makes it easy to integrate into various electronic devices, especially those with limited space. Whether it is a handheld remote - controlled device, a small - sized sensor module, or a smart home appliance, the compact design of these receivers allows for seamless integration without adding significant bulk to the product.
## 3. Technical Specifications
### 3.1 Signal Frequency
The TSOP4840 series is optimized for a specific infrared signal frequency, typically around 38kHz. This frequency is widely used in infrared remote control systems, ensuring compatibility with a large number of existing infrared transmitters.
### 3.2 Output Signal
The receivers provide a digital output signal, which is easy to interface with microcontrollers and other digital circuits. The output signal is in the form of a pulse - width - modulated (PWM) signal, which can be directly processed by the connected electronic components to perform various functions.
### 3.3 Detection Angle
The TSOP4840 series has a relatively wide detection angle, usually around ± 45°. This wide detection angle allows the receiver to capture infrared signals from different directions, providing greater flexibility in the placement of the device and the infrared emitter.
## 4. Applications
### 4.1 Consumer Electronics
In the consumer electronics market, the TSOP4840 series is widely used in televisions, DVD players, set - top boxes, and other home entertainment devices. It enables users to control these devices remotely using infrared remote controls, providing a convenient and intuitive user experience.
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