Document
TFDU4203
Vishay Semiconductors
Integrated Low Profile Transceiver Module for Telecom Applications – IrDA Standard
Description
The miniaturized TFDU4203 is an ideal transceiver for applications in telecommunications like mobile phones and pagers. The device is mechanically designed for lowest profile with a height of only 2.8 mm. The infrared transceiver is compatible to the IrDA® IrPHY specification up to a data rate of 115 kbit/s. The transceiver can be operated without external current limiting resistor to achieve full SIR compliance (range > 1 m in full ±15° cone).
Features
D Package Dimension: L 7.1 mm x W 4.7 mm x H 2.8 mm D Compatible to the latest IrDA IrPHY Standard D CIR Remote Control Operation: Typical Transmission Range 8 m Using Standard RC–Receivers. Receives RC–Commands with Typical Specified Sensitivity. D SMD Side View D Lowest Power Consumption 65 µA, Receive Mode, 0.01 µA Shutdown Current D Built-in Current Limitation D Output Intensity Adjustable beyond IrDA Low Power D Supply Voltage Range (2.4 V to 5.5 V) D Operational down to 2.0 V D Fewest External Components D Eye Safety: Double Safety Measures: Limited Optical Output Pulse Duration Limited Optical Output Intensity IEC60825–1, 2001: Class 1 D Tri–State Output (Rxd) D High EMI Immunity D SD Pin
Applications
Mobile Phones, Pagers, Personal Digital Assistants (PDA), Handheld Battery Operated Equipment
Package
TFDU4203 µFace Side View weight: 0.10 g
Document Number 82542 Rev. A1.1, 13-Feb-03
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TFDU4203
Vishay Semiconductors µFace SIR Selector Guide
Part Number TFDU4201 Main Feature Low Power 20 cm/ 30 cm IrDA Standard SD pin Rxd Output in Txd Mode Optical Feedback**) (for e.g. self-test mode) IRED Drive Capability Internally current controlled, adjusted for Ie >4 mW/sr IrDA Compliance Low Power SIR, pairs of TFDU4201 operate typically over a range of > 70 cm on axis Power Supply One power supply only, due to the very low current consumption no need for split power supply Split power supply*) can be used when operated at higher IRED current levels
TFDU4202
Split Power Supply Increased Range 70 cm
Quiet**) necessary for some WinCE® applications, Rxd grounded when VCC= 0 V
TFDU4203
Similar to TFDU4201 with increased range 70 cm, SD pin
Quiet**) necessary for some WinCE® applications
TFDU4204
Similar to TFDU4202, Logic Input and Output Levels Adapted to 1.8 V Logic
Quiet**) necessary for some WinCE® applications, Rxd output is floating when supply voltage below 0.7 V
Internally current controlled to cover extended range of 70 cm. Current level can be reduced by an external resistor Internally current controlled to cover extended range of 70 cm. Current level can be reduced by an external resistor Internally current controlled to cover extended range of 70 cm. Current level can be reduced by an external resistor
Low Power SIR as e.g. TFDU4201, pairs of TFDU4202 operate typically up to full IrDA SIR distance >1 m
Low Power SIR as e.g. TFDU4201, pairs of TFDU4203 operate typically up to full IrDA SIR distance >1 m
One power supply only
Low Power SIR as e.g. TFDU4201, pairs of TFDU4204 operate typically up to full IrDA SIR distance >1 m
Split power supply*) can be used when operated at higher IRED current levels
*)
Split power supply: The receiver circuit only is connected to a regulated power supply. The high IRED current can be supplied by a less controlled power line or directly from the battery. That feature saves power supply costs. TELEFUNKEN introdused this feature as the world first with the 4000 series Depending on the designs different applications need an optical feedback for test purposes or must be quiet (e.g. in Windows CE® applications).
**)
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Document Number 82542 Rev. A1.1, 13-Feb-03
TFDU4203
Vishay Semiconductors Ordering Information
Part Number TFDU4203–TR1 TFDU4203–TR3 Qty / Reel 750 2250 Description Orientated in carrier tape for side view mounting Orientated in carrier tape for side view mounting
Functional Block Diagram
Vcc
Tri–State–Driver Amplifier Comparator Rxd
Control & Logic Txd Control SD Controlled Driver
GND
Figure 1. Functional Block Diagram
Pin Description
Pin 1 2 3 4 5 6 7 8 Symbol IRED GND IRED GND Rxd VCC GND GND Txd SD Description IRED Cathode, Ground IRED Cathode, Ground Output, Received Data, Tri-state, Floating in Shutdown Mode (SD = High), Quiet during transmission Supply Voltage Ground Ground Input, Transmit Data Shutdown I/O Active
O
LOW
I I
HIGH HIGH
Document Number 82542 Rev. A1.1, 13-Feb-03
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TFDU4203
Vishay Semiconductors Absolute Maximum Ratings
Reference Point Pin 8, unless otherwise noted. Parameter Test Conditions Supply Voltage Range Input Current Output Sink Current Power Dissipation Junction Temperature Ambient Temperature Range (Operating) Storage Temperature Range Soldering Temperature t = 20 s @215°C Symbol VCC Min. Typ. –0.5 Max. 6 10 25 200 125 85 100 240 Unit Remarks V mA all pins mA m.