333 3 TFBS4650 www.vishay.com Vishay Semiconductors Infrared Transceiver, 9.6 kbit/s to 115.2 kbit/s (SIR) FEATURES Compliant with the IrDA physical layer IrPHY 1.4 (low power specification, 9.6 kbit/s to 115.2 kbit/s) Link distance: 30 cm/20 cm full 15 cone with standard or low power IrDA, respectively. Emission intensity can be set by an external resistor to increase the range for extended low power spec to > 50 cm 20206 Typical transmission distance to standard device: 50 cm Small package (L x W x H in mm): 6.8 x 2.8 x 1.6 ADDITIONAL RESOURCES Low current consumption 75 A idle at 3.6 V Shutdown current 10 nA typical at 25 C 3D Models Operates from 2.4 V to 5.5 V within specification over full temperature range from -30 C to +85 C DESCRIPTION Split power supply, emitter can be driven by a separate The TFBS4650 is one of the smallest IrDA complian t power supply not loading the regulated. transceivers available. It supports data rates up to 115 U.S. pat. no. 6,157,476 kbit/s. The transceiver consists of a PIN photodiode, Qualified for lead (Pb)-free and Sn/Pb processing (MSL4) infrared emitter, and control IC in a single package. Material categorization: for definitions of compliance please see www.vishay.com/doc 99912 APPLICATIONS Mobile phone PDAs PRODUCT SUMMARY DIMENSIONS OPERATING IDLE SUPPLY DATA RATE LINK DISTANCE PART NUMBER H x L x W VOLTAGE CURRENT (kbit/s) (m) (mm x mm x mm) (V) (mA) TFBS4650 115.2 1.6 x 6.8 x 2.8 0 to 0.3 2.4 to 5.5 0.075 PARTS TABLE PART DESCRIPTION QTY/REEL TFBS4650-TR1 Oriented in carrier tape for side view surface mounting 1000 pcs TFBS4650-TR3 Oriented in carrier tape for side view surface mounting 2500 pcs TFBS4650-TT3 Oriented in carrier tape for top view surface mounting 2500 pcs Rev. 2.1, 03-Mar-2020 Document Number: 84672 1 For technical questions within your region: irdasupportAM vishay.com, irdasupportAP vishay.com, irdasupportEU vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000 DDD D TFBS4650 www.vishay.com Vishay Semiconductors FUNCTIONAL BLOCK DIAGRAM V CC PD Tri-state driver Amplifier Comparator RXD IREDA SD IRED driver Mode control IRED TXD IREDC ASIC GND 19283 PIN DESCRIPTION PIN NUMBER SYMBOL DESCRIPTION I/O ACTIVE IRED anode, connected via a current limiting resistor to V . A separate CC2 1IREDA unregulated power supply can be used. 2 IREDC IRED cathode, do not connect for standard operation. Transmitter data input. Setting this input above the threshold turns on the 3TXD transmitter. This input switches the IRED with the maximum transmit pulse width IHigh of about 100 s. Receiver output. Normally high, goes low for a defined pulse duration with the 4RXD rising edge of the optical input signal. Output is a CMOS tri-state driver, which OLow swings between ground and V . Receiver echoes transmitter output. CC Shutdown. Logic low at this input enables the receiver, enables the transmitter, 5SD and un-tri-states the receiver output. It must be driven high for shutting down the IHigh transceiver. Power supply, 2.4 V to 5.5 V. This pin provides power for the receiver an d 6V CC transmitter drive section. Connect V via an optional filter. CC1 7 GND Ground Definitions: PINOUT In the Vishay transceiver datasheets the followin g TFBS4650, bottom view nomenclature is used for defining the IrDA operating modes: weight 0.05 g SIR: 2.4 kbit/s to 115.2 kbit/s, equivalent to the basic serial infrared standard with the physical layer version IrPhy 1.0 MIR: 576 kbit/s to 1152 kbit/s FIR: 4 Mbit/s VFIR: 16 Mbit/s MIR and FIR were implemented with IrPhy 1.1, followed by IrPhy 1.2, adding the SIR low power standard. IrPhy 1.3 Pin 1 Pin 7 extended the low power option to MIR and FIR and VFIR 19284 was added with IrPhy 1.4. A new version of the standard in any case obsoletes the former version. Rev. 2.1, 03-Mar-2020 Document Number: 84672 2 For technical questions within your region: irdasupportAM vishay.com, irdasupportAP vishay.com, irdasupportEU vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000