U2532B Datasheet | TEMIC Semiconductors

Description The IC U2532B is a plete IR-Transmitter-Receiver IC according to the new Ir DA 1.0 standard. ASK-modulation is also possible. Only an external PIN-photodiode and an infrared emitting diode with current limiting resistor must be connected to the corresponding pins. The amplifier with Schmitt-Trigger formed output signal and the IR-driver need no further external ponents. The IC allows data rates from 2.4 kbit/s to 115.2 kbit/s and up to 500 k Hz for ASK-modulation. Two different sensitivity modes, which can be programmed by applying a “High” or “Low” voltage at pin SC, ensure either an increase in transmission distance or a bit error rate of 1E-9. An internal AGC allows proper operation under EMI conditions. Features D Data rates up to 115.2 kbit/s D Wide supply voltage range (3 to 5.5 V) D AGC for EMI immunity D AGC reset D High and low sensitivity mode D BER < 1E-9 in the low sensitivity mode D Power-On reset Applications D IR data transmission D patible to Ir DA D Bidirectional IR data transmission D Ability to receive ASK modulation Case: SO16 V CC RL Tx D Driver Amp (AGC) Rx D Reset Figure 1. 95 10210 TELEFUNKEN Semiconductors Rev. A1, 27-Sep-96 1 (10) Preliminary Information Pin Description P_GND Tx D 15 IRED 14 O_GND 13 Rx D Reset A_GND Pin 1 2 3 4 5 6 7, 8, 10, 12, 13, 16 9 11 14 15 Symbol P_GND Tx D Rx D Reset VCC SC NC Function Power ground Transmitter input Receiver output AGC-Reset Supply voltage Sensitivity Control Not connected IN A_GND O_GND IRED Photodiode input Analog ground Output ground IR-Emitter 95 10244 Figure 2. Pinning Block Diagram 5 2 DRV 1 P BIAS CGA 9 + - 14 3...