ALLNET 4duino IR Receiver / IR receiver 38KHz Overview of The IR demodulator from Vishay is a General-purpose receiver for IR remote control projects. It is intended as a detector for the data formats that are modulated at 38 kHz and a minimum of 10 cycles/burst; popular IR-codes that meet these requirements, NEC, Sharp, r-step (our Mini IR remote uses the NEC encoding, so that it works well with the TSOP38438). The Module?s output signal can be directly connected to a microcontroller; no additional external components are required. You can find the TSOP38438 data sheet (132k pdf) for more information. For a similar IR-detector carrier is optimized for 56 kHz frequency, see Vishay TSOP34156. Modulated infrared detector comparison part TSOP34156 TSOP38438 TSSP58P38 TSSP58038 Intended function IR remote control brightness/proximity sensing predictable modulated IR-presence sensing Modulation frequency 56 kHz 38 kHz 38 kHz 38 kHz Gain (sensitivity) automatically, but only inaccessible automatic, predictable fixed high-gain Output binary (data) analog (pulse width) - binary (on/off) - Update-rate of a few kHz to a few Hz to a few kHz technical data operating voltage: 2.5 V to 5.5 V carrier frequency: 38 kHz package: Through-hole with 0.1? lead spacin