IrDA CND0102A Optical Transceiver Module for IrDA Unit : mm Overview 13.6 7 (4.2) (3.2) 2.9 5.6 0.9 5.5 CND0102A is a high speed response, high reliability infrared data link device. It consists of a high speed GaAlAs infrared light emitting diode, a high speed PIN photodiode and a post processing IC, and they are housed in a single package. 7.9 1 2 3 45 6 7 8 Features 8−0.5 Conformable to IrDA 1.1 (max. 4 Mbps) 7−1.27 R2 R2 .8 Compatible with reflow soldering process .6 Small size package Applications 3.2 4.1 Includes shutdown function 6.9 High electromagnetic noise immunity 1: GND 2: SD 3: VCC 4: RXD–B 5: RXD–A 6: TXD 7: LEDC 8: LEDA Notebook computers Peripheral devices for personal computers Digital still cameras Absolute Maximum Ratings (Ta = 25˚C) Parameter Transmitter TX Receiver RX Temperature *1 LED Peak forward current Data input voltage Symbol Ratings IFP *1 VI Unit 500 mA – 0.5 to VCC+0.5 V Supply voltage VCC – 0.5 to +7 Output sinking current IOL 10 V mA Data output voltage VO – 0.5 to VCC+0.5 V Operating ambient temperature Topr 0 to +70 ˚C Storage temperature Tstg –20 to +85 ˚C Duty ratio ≤ 20%, pulse width ≤ 90 µs 1 Powered by ICminer.com Electronic-Library Service CopyRight 2003 CND0102A IrDA Electro-Optical Characteristics (Ta = 25˚C, VCC = 5V) Parameter Symbol Operating supply voltage VCC Supply current (Receiver) ICC Supply current (shut down) ICCSD LED Peak current Radiant intensity “H” Level VCC = 5V, VCC ≥ VSD ≥ VCC – 0.3V VI = 0.3V (light shut off) IFP VCC = 5V, VSD ≤ 0.5V IeH VCC = 5V, VI = 2.5V, VSD ≤ 0.5V IeL VCC = 5V, VI ≤ 0.5V, VSD ≤ 0.5V VIH VCC = 5V, VSD ≤ 0.5V Low level input voltage VIL VCC = 5V, VSD ≤ 0.5V “L” Level α Rise time, fall time tr, tf Maximum transfer distance Lmax VCC = 5V, RLED = 6.8Ω High level output voltage VOH IOH ≤ 20µA, VSD ≤ 0.5V (light shut off) Low level output voltage VOL IOL ≤ 1mA, VSD ≤ 0.5V typ max Unit 5.0 5.5 V 10.0 15.0 mA 0.07 0.1 mA 4M bps 870 900 nm 400 9.6k 850 High level input voltage Half angle RX 4.5 λp Peak emission wavelength min VCC = 5V, VI = 0.3V, VSD ≤ 0.5V (light shut off) RXD – A ≤ 115.2kbps, RXD – B > 115.2kbps Data rates TX Conditions 450 mA 100 300 mW/sr 0.3 µW/sr 2.5 VCC V 0 0.5 V 15 30 deg. 40 ns VCC = 5V, Pulse width tw = 1.6µs 1 m 2.4 V 0.5 V Block Diagram LEDA 6.8Ω 5V 470pF LEDC TXD 5.1kΩ 10µF VCC Amp. PD Comparator RXD-A SD RXD-B Amp. GND 2 Powered by ICminer.com Electronic-Library Service CopyRight 2003 Comparator 0.1µF