TFDS4500

Features:

` Compliant to the latest IrDA physical layer standard (Up to 115.2 kbit/s)
` 2.7 to 5.5 V Wide Operating Voltage Range
` LowPower Consumption (1.3 mA Supply Current)
` Power Sleep Mode Through VCC1/SD Pin (5 nA Sleep Current)
` Long Range (Up to 3.0 m at 115.2 k/bit/s)
` Three Surface Mount Package Options
    Universal (9.7 * 4.7 * 4.0 mm)
    Side View (13.0 * 5.95 * 5.3 mm)
    Top View (13.0 * 7.6 * 5.95 mm)
` BabyFace (Universal) Package Capable of Surface Mount Solderability to Side and Top View Orientation
` Directly Interfaces with Various Super I/O and Controller Devices and Telefunken's TOIM3000 and TOIM3232 I/Os
` BuiltIn EMI Protection No External Shielding Necessary
` Few External Components Required
` Backward Compatible to all Telefunken SIR Infrared Transceivers


Application

· Notebook Computers, Desktop PCs, Palmtop Computers (Win CE, Palm PC), PDAs
· Digital Still and Video Cameras
· Printers, Fax Machines, Photocopiers, Screen Projectors
· Telecommunication Products (Cellular Phones, Pagers)
· Internet TV Boxes, Video Conferencing Systems
· External Infrared Adapters (Dongles)
· Medical and Industrial Data Collection Devices


Specifications

Parameters	Test Conditions	Symbol	Min.	Typ.	Max.	Unit
Supply Voltage Range	0 V VCC2 6 V	VCC1	0.5		6	V
	0 V VCC1 6 V	VCC2	0.5		6	V
Input Currents	For all Pins, except IRED Anode Pin				10	mA
Output Sink Current					25	mA
Power Dissipation	See Derating Curve	PD			200	mW
Junction Temperature		TJ			125
Ambient Temperature Range (Operating)		Tamb	25		+85
Storage Temperature Range		Tstg	25		+85
Soldering Temperature	See Recommended Solder Profile			215	240
Average IRED Current		IIRED (DC)			100	mA
Repetitive Pulsed IRED Current	t < 90 ms, ton < 20%	IIRED (RP)			500	mA
IRED Anode Voltage		VIREDA	0.5		6	V
Transmitter Data Input Voltage		VTxd	0.5		VCC1+0.5	V
Receiver Data Output Voltage		VRxd	0.5		VCC1+0.5	V
Virtual Source Size	Method: 11/e) encircled energy	d	2.5	2.8		mm
Maximum Intensity for Class 1 Operation of IEC8251 or EN608251 (worst case IrDA SIR pulse pattern *)	EN60825, 1997				400	mW/sr

* Note:
        Transmitted data: continuously transmitted "0". In normal data transfer operation "0" and "1" will 
        be transmitted with the same probability. Therefore, for that case, about a factor of two of safety margin
        is included. However, for worst case thermal stress testing such data pattern are often used and for this
        case the 400 mW/sr value has to be taken.


Description

The TFDU4100, TFDS4500, and TFDT4500 are a family of lowpower infrared transceiver modules compliant to the IrDA standard for serial infrared (SIR) data communication, supporting IrDA speeds up to 115.2 kbit/s. Integrated within the transceiver modules are a photo PIN diode, infrared emitter (IRED), and a lowpower analog control IC to provide a total frontend solution in a single package. Telefunken's SIR transceivers are available in three package
options, including our BabyFace package (TFDU4100), the once smallest SIR transceiver available on the market. This wide selection provides flexibility for a variety of applications and space constraints. The transceivers are capable of directly interfacing with a wide variety of I/O chips which perform the pulsewidth modulation/demodulation function, including Telefunken's TOIM4232 and TOIM3232. At a minimum, a current limiting resistor in series with the infrared emitter and a V_CC bypass capacitor are the only external components required to implement a complete solution.