HSDL-3201 IrDA Data 1.4 Low Power Compliant 115.2 kb/s Infrared Transceiver Data Sheet Features Complete shutdown Ultra small surface mount package TxD, RxD, PIN diode Minimal height: 2.5 mm One optional external component V from 2.7 to 3.6 volts CC Temperature range: Withstands > 100 mV power supply ripple p-p -25C to 85C LED supply voltage can range from 2.7 to 6.0 32 mA LED drive current volts Integrated EMI shield Low shutdown current IEC825-1 Class 1 eye safe 20 nA typical Edge detection input Lead-free and RoHS compliant Prevents the LED from long turn on time CELL PHONES PAGERS PDAs CAMERAS CELL PHONES PAGERS PRINTERS PCs 20 CM TO LOW POWER DEVICES PDAs 30 CM TO STANDARD DEVICES CAMERAS IrDA 1.0/1.4 STANDARD OR IrDA 1.4 LOW POWER LOW POWER 30 ILLUMINATION CONESHIELD Application Circuit Applications Mobile telecom Cellular phones 8 VLED Pagers VLED LED Smart phones CURRENT 7 TXD SOURCE TXD Data communication PDAs 6 RXD RXD Portable printers Digital imaging 5 SD SHUT DOWN Digital cameras Photo-imaging printers 4 AGND Description 3 V CC V CC The HSDL-3201 is one of a new RX PULSE 2 SHAPER generation of low-cost Infrared (IR) C1 NC 1.0 F transceiver modules from Avago 1 GND Technologies. It features the smallest footprint in the industry at 2.5 H x 8.0 W x 3.0 D mm. Although the supply voltage can range from 2.7 V to 3.6 V, the LED drive current is internally compensated to a constant 32 mA to assure that link distances meet the IrDA Data 1.4 (low power) physical I/O Pins Configuration Table layer specifications. Pin Symbol Description Notes 1 GND Ground Connect to system ground. The HSDL-3201 meets the 20 cm link distance to other IrDA 1.4 low power 2 NC No Connection This pin must be left unconnected. devices, and a 30 cm link distance to 3V Supply Voltage Regulated: 2.7 to 3.6 Volts CC IrDA 1.4 standard devices. 4 AGND Analog Ground Connect to a quiet ground. 5 SD Shut Down This pin must be driven either high or Active High low. Do NOT float the pin. 6 RXD Receiver Data Output is a low pulse for 2.4 s Output. Active Low. when a light pulse is seen. 7 TXD Transmitter Data Logic high turns the LED on. If held Input. Active High. high longer than ~ 20 s, the LED is HSDL-3201 021 Pinout, turned off. TXD must be driven high or low. Do NOT float the pin. Rear View 8 VLED LED Voltage May be unregulated: 2.7 to 6.0 volts. - SHIELD EMI Shield Connect to system ground via a low inductance trace. For best performance, do not directly connect 87654321 to GND or AGND at the part. HSDL-3201 008 Pinout, Rear View 87654321 2