STIR4220 SigmaTel, STIR4220 Datasheet
STIR4220
Manufacturer Part Number
STIR4220
Description
(STIR4210 / STIR4220) USB 2.0 Hi-Speed to IrDA Bridge
Manufacturer
SigmaTel
Datasheet
1.STIR4220.pdf
(2 pages)
FEATURES
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2-4210/20-P1-0.92-1103
Integrated Mixed-Signal Solutions
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Complete System Solution for Implementing
IR Communications on USB
USB 2.0 Device Controller
High Performance IrDA Protocol Controller
Embedded High Performance
Transceiver Identification for automatic
driver configuration
Integrated PLL
Integrated 5.0V-3.3V and 3.3V-1.8V Linear
Voltage Regulators Provide Power for
Typical Configurations
1.8V Low Power Core Operation.
3.3V I/O with 5.0V Input Tolerance
32-pad QFN Leadless Package (5mm x
5mm) minimizes board space requirements
Supports MAC OS, Linux, WinME, Win2000,
Win XP and later Windows OSs
Microcontroller Provides Control Functions
Speed Operation
USB 2.0 High Speed Device Controller Interface
Complete IrDA Protocol Engine
High Integration Minimizes External Components
Compatible with USB 2.0 Specification for High
Integrated USB 2.0 Transceivers
Control, Bulk In, Bulk Out endpoints
Compatible with Bus Powered Specification
Configurable Vendor ID and Subsystem ID
Compatible with IrDA Serial Infrared Physical
Layer Specification 1.4
Supports SIR, MIR, FIR, and VFIR rates up to 16
Mbits/second (STIR4220)
Supports SIR, MIR, and FIR rates up to 4 Mbits/
sec (STIR4210)
Supports communication of unframed raw data for
remote control and proprietary applications
Internal Program ROM
Internal RAM for Data, Buffering, Scratchpad, and
Program ROM Patch
Preliminary - 11/10/03
USB 2.0 Hi-Speed to IrDA Bridge
STIR4210/STIR4220
The SigmaTel STIR4210 and STIR4220 are low power,
USB 2.0 Hi-Speed IrDA Bridge Controller integrated
circuits
solutions. The STIR4210/STIR4220 connect directly to
the USB Bus and provide all functionality necessary
between the USB 2.0 and an IR transceiver. A USB IR
communication subsystem can be implemented by
adding an IR transceiver, a 24 MHz crystal, and a few
passive components for bypass and power filtering.
The STIR4210/STIR4220 are compatible with the IrDA
Serial Infrared Physical Layer Specification Version 1.4.
The STIR4210 supports data rates up to 4 Mbits per
second (FIR) and the STIR4220 supports data rates up
to 16 Mbits per second (VFIR) including FIR. Both
devices support all of the lower data rates defined by
the IrDA specification (SIR and MIR).
The STIR4210/STIR4220 implement a USB 2.0
Hi-Speed device controller including integrated PHY/
transceivers,
programmable microcontroller, memory for program
and buffering, and voltage regulators required for the
typical USB based Infrared subsystem.
A high performance microcontroller provides control
functions. On-chip program ROM and program/data
RAM eliminates the need for external components.
RAM is used for data, buffering, and ROM patch.
The IR Protocol Controller supports the IrDA encode
and decode operations required by the various data
rates and allows the STIR4210/STIR4220 to interface
to a wide range of IR capable devices at the highest
performance. Unframed transfers are supported for
proprietary and remote control applications.
GPIO pins support the control of external functions.
These pins include an activity LED and pins for
transceiver ID. These pins can be used so that the
driver can detect which transceiver is used and
configure performance parameters if necessary. An
integrated PLL generates all on-chip clocks from a 24
MHz crystal. Integrated voltage regulators convert the
USB 5.0V power to 1.8V and 3.3V power required by
the device and the IrDA transceiver.
.
DESCRIPTION
P R O D U C T B R I E F
for
enabling
an
IR
USB
Protocol
IrDA
communication
Controller,
a
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STIR4220 Summary of contents
Page 1
... The STIR4210/STIR4220 are compatible with the IrDA Serial Infrared Physical Layer Specification Version 1.4. The STIR4210 supports data rates Mbits per second (FIR) and the STIR4220 supports data rates Mbits per second (VFIR) including FIR. Both devices support all of the lower data rates defined by the IrDA specification (SIR and MIR) ...
Page 2
... ORDERING INFORMATION Part Number Package STIR4210N 32-Pad QFN STIR4220N 32-Pad QFN Copyright © 2003 SigmaTel, Inc. All rights reserved. All contents of this document are protected by copyright law and may not be reproduced without the express written consent of SigmaTel, Inc. SigmaTel, the SigmaTel logo, and combinations thereof are trademarks of SigmaTel, Inc. Other product names used in this publication are for identification purposes only and may be trademarks or registered trademarks of their respective companies ...