The HSDL-3201#B21 is a miniature infrared (IR) transceiver module manufactured by Lite-On. This module is designed for short-range wireless data communication, conforming to the IrDA physical layer standard. It is typically used in applications requiring serial infrared communication.

Applications:

• IrDA communication in mobile devices (PDAs, smartphones)
• Wireless data transfer between computers and peripherals
• Remote control systems
• Data logging devices
• Medical equipment

Features:

• IrDA 1.4 physical layer compliant
• Data rate: up to 115.2 kbps
• Operating distance: up to 1 meter
• Low power consumption
• Small form factor
• 3.0V to 5.5V operating voltage range
• Built-in LED driver and photodiode receiver
• Automatic gain control (AGC)

Benefits:

• Wireless Communication: Provides a convenient wireless data transfer solution.
• Compact Design: Small size enables integration into space-constrained devices.
• Low Power Consumption: Extends battery life in portable applications.
• Easy Integration: Simplified interface for easy implementation in various systems.
• IrDA Compliance: Ensures interoperability with other IrDA-enabled devices.

Additional Details:

The HSDL-3201#B21 integrates an infrared LED transmitter, a photodiode receiver, and control circuitry in a single package. The module operates at a wavelength of approximately 875 nm. It requires minimal external components for operation. The AGC circuit automatically adjusts the receiver sensitivity to compensate for variations in signal strength. The module is typically connected to a UART for serial data communication. It’s designed for reliable short-range wireless data transfer and is suitable for a variety of consumer and industrial applications.