Description
The HSDL-7002 modulates and demodulates electrical pulses from HSDL-3201 IrDA® transceiver module and other IrDA® compliant transceivers. The HSDL-7002 can be used with a microcontroller/microprocessor that has a serial communication interface (UART).
Prior to communication, the processor selects the transmission baud rate. Serial data is then transmitted or received at the prescribed data rate.
The HSDL-7002 consists or two state machines – the SIR (Serial InfraRed) Encode and SIR Decode blocks. It also contains a sequential block Clock Divide that synthesizes the required internal signal.
The HSDL-7002 can be placed into the Internal Clock Mode or External Clock Mode. An external crystal is needed for the Internal Clock Mode. In applications where the external 16XCLK signal is provided, a crystal is not needed.
There are two data transmission modes. Data can be transmitter and received in either a standard 3/16 modulation mode or a 1.63 μs pulse mode.

Features
• Fully Compliant to IrDA® Physical Layer Specification 1.4 from 9.6 kbit/s to 115.2 kbit/s (SIR)
• Interfaces with IrDA® Compliant IR Transceiver
• Miniature Module Size with 16-pin Quad-Flat-No Lead (QFN) Package
Height : 0.8 mm
Length : 4.0 mm
Depth : 4.0 mm
• Used in Conjunction with Standard 16550 UART
• Transmits/Receives either 1.63 μs or 3/16 Pulse Mode
• Internal or External Clock Mode
• Programmable Baud Rate 2.7 – 5.5 V Operation
• Lead Free and Green Product

Applications
• Interfaces with IrDA® Transceiver
in:
• Telecom Applications:
Mobile Phones
Modems
Pagers
Fax Machines
• Computer Applications:
Notebook Computers
Desktop PCs
Dongles or other RS-232
adapters
PDAs
Printers
• Handheld Data Collection:
Industrial
Medical
• Transportation