HSDL-7001

Encoders, Decoders, Converters Overview

The HSDL-7001 is an IrDA-SIR (Serial InfraRed) encoder and decoder IC compliant with the IrDA 1.0 physical layer specifications. It interfaces with standard UARTs or microcontrollers to modulate and demodulate infrared pulses for serial communication. The device supports both internal crystal clock modes and external clock inputs, enabling programmable baud rates up to 115200 bps. It operates within a supply voltage range of 2.7V to 5.5V and features two transmission modes: standard 3/16 pulse modulation and a 1.63 µs monoshot pulse mode. The component is housed in a 16-pin SOIC package.

Encoders, Decoders, Converters Feature Summary

• Compliant with IrDA 1.0 physical layer specifications for reliable infrared data exchange.
• Supports dual transmission modes including standard 3/16 pulse modulation and 1.63 µs monoshot operation.
• Offers flexible clocking options via internal oscillator or external clock input for system integration.
• Integrates dedicated SIR encode and decode state machines for direct UART interfacing.

Encoders, Decoders, Converters Applications

• Notebook and sub-notebook computers
• Desktop PCs and PDAs
• Industrial handheld data collection devices

Encoders, Decoders, Converters Procurement Notes

Verify the specific ordering suffix when purchasing. The HSDL-7001#100 variant is supplied in tubes containing 100 pieces each, while the HSDL-7001-2500 variant is provided in tape and reel packaging with quantities of 2500 units. Confirm the required packaging format aligns with your assembly equipment capabilities before placing orders.

Encoders, Decoders, Converters Selection Notes

Select this component for applications requiring strict adherence to IrDA 1.0 SIR standards. Ensure the host system provides either a compatible 16XCLK signal from a UART or a 3.6864 MHz crystal for the internal oscillator. Verify that the operating temperature range of -40°C to +85°C meets the environmental requirements of the target deployment scenario.

Encoders, Decoders, Converters Part Context

This component belongs to Lite-On's infrared communication series designed for short-range wireless data transfer. It serves as a bridge between digital logic interfaces and optical transceivers, facilitating standardized serial communication protocols in portable electronics and industrial equipment without requiring complex protocol stacks.

Encoders, Decoders, Converters Replacement Considerations

Public confirmed substitute part numbers are not available in the verified documentation. Evaluate alternative IrDA SIR controllers based on pin compatibility and electrical specifications if substitution is necessary.

Encoders, Decoders, Converters FAQ

What are the supported baud rates for the HSDL-7001?

The device supports programmable baud rates including 115200, 57600, 38400, 19200, 9600, 4800, and 2400 bps, selected via the A0, A1, and A2 pins.

How does the HSDL-7001 handle clock selection?

Clock selection is managed by the CLK_SEL pin. A high level activates the external clock mode using the 16XCLK input, while a low level activates the internal clock mode requiring an external crystal connected to OSCIN and OSCOUT.

What is the function of the PULSEMOD pin?

Asserting the PULSEMOD pin high enables the monoshot transmit mode, which generates a fixed 1.63 µs pulse on IR_TXD upon a negative transition on TXD, intended for use with the internal crystal clock.