Infrared IrDA Transceiver Module UTS-413T Feature Highlights • IrDA1.1, HP-SIR, and Sharp ASK compliant • Support IrDA data rates form 9.6Kbps to 4Mbps • Minimal external components • User programmable ambient light rejection filters • High performance -minimum detectable photocurrent of 250nA @4Mbps, 100nA @≦115Kbps - analog latency turn around time <100uS (typical) • Single +2.7V to +5V supply • Low power consumption <1 uA in shutdown mode • Wavelength : 870 nm Applications • Notebook and Subnotebook Computers • External Infrared Adapters (Dongles) • Desktop PCs、Printers 、PDAs • Digital Still and Video Cameras • Telecommunication Products • Photo Imaging Printers (Cellular Phones、Pagers) Description The UTS-413T is a low cost, low power, multi-mode infrared transceiver module in a ultra slimline form factor ideally suited for portable wireless data communications and connectivity applications. The device consists of an infrared emitting diode (IRED), a photodiode (PIN), and a low power control IC integrated into a single package. Only a few external components are required to fully implement the module . Block Diagram vcc SCLK/ SD PIN AMP Filter Comparator RXD vcc Vref TXD AMP Driver LEDC GND Unity Opto Technology Co., Ltd. 1 REV A2 04/03/01 Infrared IrDA Transceiver Module UTS-413T I/O Pins Configuration Table Pin Description Symbol 1 LED Anode LEDA 2 LED Cathode LEDC 3 Transmitter Data Input TXD 4 Receiver Data Output RXD 5 Shutdown Mode SCLK/SD 6 Supply Voltage Vcc 7 No Connection NC 8 Ground GND Application Circuit： Front View Recommended Application Circuit Components 1. Vcc ( PIN 6 ) Connect a 1.0 ~ 10µF capacitor to ground as close as possible to this pin. 2. RLEDA RLEDA is an optional resistor for current limiting in series with PIN 1. Recommended RLEDA values : VLEDA(V) 2.7 3.0 3.5 4.0 5.0 RLEDA(Ω) 0 0 1.0 2.7 5.1 Unity Opto Technology Co., Ltd. 2 REV A2 04/03/01 Infrared IrDA Transceiver Module UTS-413T Package Outline With Dimensions 1.00 4.15 3.80 9.70 0.50 3.00 1.85 1.75 4.60 7.00 PIN OUT 1 2 3 4 5 6 7 8 LEDA LEDC TXD RXD SLCK/SD Vcc NC GND NOTE: 1.All dimensions in milimeter. 2.Package dimensions tolerance ± 0.2mm unless otherwise noted. Unity Opto Technology Co., Ltd. 3 REV A2 04/03/01 Infrared IrDA Transceiver Module UTS-413T Absolute Maximum Ratings Paramater Symbol Min. Max. Unit Storage Temperature Ts -25 85 ℃ Operating Temperature TA -25 80 ℃ Lead Solder Temperature TJ 260 ℃ Repetitive Pulsed LED Current ILED (RP) 650 mA ≦90μs Pulse Width ≦25% Duty Cycle Peak LED Current ILED (PK) 1000 mA ≦2 μs Pulse Width ≦25% Duty Cycle 5.5 V Vcc +0.3 V TYP. Max. Supply Voltage Voltage at any pins Vcc -0.5 Vmax Conditions Recommended Operating Conditions Paramater Symbol Min. Operating Temperature TA -20 ℃ 75 ℃ Supply Voltage Vcc 3.0 V 5.0 V Conditions Electrical and Optical Characteristics Paramater Symbol Min. Receiver Data Logic High VRXDH Vcc×0.8 V Receiver Data Logic Low VRXDL Transmitter Data Logic High VTXDH Transmitter Data Logic Low VTXDL TYP. Max. Conditions Into CMOS Load 0.2 V Into CMOS Load Into CMOS Load Vcc×0.6 V Vcc×0.4V Into CMOS Load Supply Current Is 13 mA 18 mA Receiver Mode Shutdown Current IPD 0.1μA 1μA SCLK/SD=1 Average Transmit LED Driver Current ITD 160 mA ≦90μs Pulse Width ≦25% Duty Cycle Radiant IRED Peak Wavelength λp 870 nm If=20mA Radiant IRED Wavelength Spectral Line Half Width Δλ1/2 50 nm If=20mA Radiant IRED Viewing Angle 2θ1/2 30 degrees Receiver PIN Viewing Angle 2θ1/2 30 degrees Unity Opto Technology Co., Ltd. 4 REV A2 04/03/01