Remote control transmitter component CS900

Relevant key device information applied in this article: SM5262 MPSH10, as shown in the figure, is a remote control transmitter circuit with a digital encoder added. The digital encoding circuit uses SM5262, which is exactly the same as PT2262 and can be used directly interchangeably. The encoded data signal is output from pin 17 of SM5262, and is added to the base of the transmitting tube VT through R2 to digitally modulate the transmitting carrier frequency. The transmitting tube VT and the 315MHz SAW form a carrier frequency oscillation and transmitting circuit. The inductor coil L uses a printed board inductor so that the coil inductance does not change due to the deformation of the coil. This ensures the consistency of the circuit performance and reduces the cost during mass production. adjustment process. The model of this component is CS900. It is used in conjunction with CS902 and CS906 and has a control distance of up to 200 meters.