333 3 TFBS4711 www.vishay.com Vishay Semiconductors Serial Infrared Transceiver (SIR), 115.2 kbit/s, 2.4 V to 5.5 V Operation FEATURES Compliant with the latest IrDA physical layer low power specification (9.6 kbit/s to 115.2 kbit/s) Small package (H x L x W in mm): 1.9 x 6 x 3 Typical link distance on-axis up to 1 m Battery and power management features: 20208 > Idle current -70 A typical > Shutdown current -10 nA typical > Operates from 2.4 V to 5.5 V within specification over full ADDITIONAL RESOURCES temperature range from -30 C to +85 C Remote control - transmit distance up to 8 m 3D Models Tri-state receiver output, floating in shutdown with a weak pull-up DESCRIPTION Constant RXD output pulse width (2.2 s typical) The TFBS4711 is a low profile, infrared data transceiver Meets IrFM fast connection requirements module. It supports IrDA data rates up to 115.2 kbit/s (SIR). Split power supply, an independent, unregulated supply The transceiver module consists of a PIN photodiode, an for IRED anode and a well regulated supply for V CC infrared emitter (IRED), and a low-power CMOS control IC to Directly interfaces with various super I/O and provide a total front-end solution in a single package. encoder / decoder devices The device is designed for the low power IrDA standard with an extended range on-axis up to 1 m. The RXD output pulse Qualified for lead (Pb)-free and Sn/Pb processing (MSL4) width is independent of the optical input pulse width and Material categorization: for definitions of compliance stays always at a fixed pulse width thus making the device please see www.vishay.com/doc 99912 optimum for standard endecs. TFBS4711 has a tri-state APPLICATIONS output and is floating in shut-down mode with a weak pull-up. The shut down (SD) feature cuts current Ideal for battery operated devices consumption to typically 10 nA. PDAs Mobile phones Electronic wallet (IrFM) Notebook computers Digital still and video cameras Printers, fax machines, photocopiers, screen projectors Data loggers External infrared adapters (dongles) Diagnostics systems Medical and industrial data collection devices Kiosks, POS, point and pay devices GPS Access control Field programming devices PARTS TABLE PART NUMBER DESCRIPTION QTY/REEL TFBS4711-TR1 Oriented in carrier tape for side view surface mounting 1000 pcs TFBS4711-TR3 Oriented in carrier tape for side view surface mounting 2500 pcs TFBS4711-TT1 Oriented in carrier tape for top view surface mounting 1000 pcs Rev. 3.4, 10-Mar-2020 Document Number: 82633 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 TFBS4711 www.vishay.com Vishay Semiconductors PRODUCT SUMMARY DIMENSIONS OPERATING IDLE SUPPLY DATA RATE LINK DISTANCE PART NUMBER H x L x W VOLTAGE CURRENT (kbit/s) (m) (mm) (V) (mA) TFBS4711 115.2 1.9 x 6 x 3 0 to 0.7 2.4 to 5.5 0.07 FUNCTIONAL BLOCK DIAGRAM V CC1 Push-pull driver RXD Amplifier Comparator V CC2 Logic Controlled driver SD and TXD control REDC GND 18282 PINOUT Definitions: In the Vishay transceiver datasheets the followin g TFBS4711 nomenclature is used for defining the IrDA operating modes: weight 50 mg SIR: 2.4 kbit/s to 115.2 kbit/s, equivalent to the basic seria l 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 Pin 1 19428 MIR and FIR were implemented with IrPhy 1.1, followed by IrPhy 1.2, adding the SIR low power standard. PIN DESCRIPTION PIN SYMBOL DESCRIPTION I/O ACTIVE NUMBER V Connect IRED anode directly to the power supply (V ). IRED current can be decreased CC2 CC2 1 IRED by adding a resistor in series between the power supply and IRED anode. A separate anode unregulated power supply can be used at this pin This Schmitt-Trigger input is used to transmit serial data when SD is low. An on-chip protection circuit disables the LED driver if the TXD pin is asserted for longer than 100 s. 2TXD IHigh The input threshold voltage adapts to and follows the logic voltage swing defined by the applied supply voltage Received data output, push-pull CMOS driver output capable of driving standard CMOS or TTL loads. During transmission the RXD output is active and mirrors the transmit signal. No 3RXD external pull-up or pull-down resistor is required. Floating with a weak pull-up of OLow 500 k (typ.) in shutdown mode. The voltage swing is defined by the applied supply voltage Shutdown. The input threshold voltage adapts to and follows the logic voltage swing 4SD IHigh defined by the applied supply voltage 5V Supply voltage CC1 6GND Ground Rev. 3.4, 10-Mar-2020 Document Number: 82633 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