HSDL-7002

Encoders, Decoders, Converters Overview

The HSDL-7002 is an IrDA SIR Encode/Decode Integrated Circuit designed to modulate and demodulate electrical pulses for infrared communication. It operates within a supply voltage range of 2.7 V to 5.5 V and supports data transmission rates from 9.6 kbit/s to 115.2 kbit/s. The device features two state machines for SIR encoding and decoding, along with a sequential clock divide block. It accommodates both internal clock mode using an external crystal and external clock mode via the 16XCLK pin. The component transmits and receives data in either standard 3/16 modulation mode or a 1.63 µs pulse monoshot mode. It is housed in a 16-pin Quad-Flat-No Lead (QFN) package measuring 4.0 mm by 4.0 mm with a height of 0.8 mm.

Encoders, Decoders, Converters Feature Summary

• Fully compliant with IrDA Physical Layer Specification 1.4 for Serial Infrared (SIR) communication
• Interfaces directly with standard 16550 UARTs or microcontrollers possessing serial communication interfaces
• Supports programmable baud rates through selectable internal clock division or external clock input
• Includes monoshot transmit mode capability for generating fixed-width 1.63 µs pulses

Encoders, Decoders, Converters Applications

• Mobile phones and pagers requiring short-range wireless data transfer
• Notebook computers and desktop PCs for peripheral connectivity
• Industrial and medical handheld data collection devices
• Modems, fax machines, and printers utilizing RS-232 adapters

Encoders, Decoders, Converters Procurement Notes

Verify that the specific order quantity matches the standard tape and reel packaging configuration of 2500 units per reel. Confirm that storage conditions adhere to JEDEC Moisture Sensitivity Level 3 requirements, maintaining temperatures between 10°C and 30°C with relative humidity below 60%. Ensure proper baking procedures are followed if the moisture-proof seal has been compromised prior to soldering.

Encoders, Decoders, Converters Selection Notes

Select this component when designing systems requiring certified IrDA SIR compliance at speeds up to 115.2 kbit/s. Evaluate the power supply constraints, as the device requires a minimum of 2.7 V. Determine whether the application benefits from the internal oscillator to reduce external components or requires the precision of an external 16XCLK signal. Consider the 16-pin QFN footprint dimensions when planning the printed circuit board layout.

Encoders, Decoders, Converters Part Context

The HSDL-7002 functions as a physical layer encoder and decoder bridge between digital serial interfaces and optoelectronic transceivers like the HSDL-3201. It replaces discrete logic solutions for IrDA implementations, simplifying the design of infrared ports in consumer electronics. The chip integrates the necessary timing generation and pulse shaping required for reliable short-range optical communication protocols.

Encoders, Decoders, Converters Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.