Vishay Intertechnology Unveils Industry’s First Remote Control Code Learning IC to Integrate Signal Detection and Processing in One Device
In order to transmit valid commands, universal control devices must learn the modulation frequency and pulse patterns for each appliance being controlled. The most intuitive method for teaching them the correct code is to use the appliance’s remote control, placing it nose-to-nose with the universal controller. When a key is pressed, the infrared emitter transmits the pulses associated with this function and the universal controller receives the code and stores it in memory.
Before the VSOP98260, signal detection and processing functions for code learning in universal control devices required discrete solutions. By combining these functions into one component, the IC released today simplifies designs in these devices, saving space and reducing overall costs. The output from the VSOP98260 accurately corresponds to the carrier frequency and data burst length of the input signal while being immune to noise from other light sources like compact fluorescent lamps.
The VSOP98260 can receive any carrier frequency from 20 kHz to 60 kHz, and operates on a supply voltage from 2.0 V to 3.6 V and a supply current of 0.6 mA to 0.9 mA. The IC is packaged in a small 2 mm by 2 mm QFN package with a low height of 0.7 mm. The RoHS-compliant device operates over a temperature range of - 25 °C to + 85 °C, is compliant to WEEE 2002/96/EC, free of halogens, and compatible with lead (Pb)-free soldering.
Samples and production quantities of the new VSOP98260 IC are available now, with a lead time of six weeks for large orders.