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315M 433M receiving module transmitting module 315/433MHz frequency wireless transceiver module
315M 433M receiving module transmitting module 315/433MHz frequency wireless transceiver module
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The super regenerative transmit module adopts OOK amplitude modulation, which has good product consistency and high cost performance. The transmitting head adopts surface acoustic wave (SAW) oscillation, which has stable frequency and small temperature drift. When the ambient temperature changes between -25°C~+85°C, the frequency drift is only 3ppm/°C, which is especially suitable for multi-send and one-receive remote control and data transmission systems. The transmitting module can be used with the same frequency receiving module of the fixed code and learning code on the market, and can also be used with the wireless receiving module of our store. Product use requires secondary development and microcontroller or 2272 chip decoding before it can be used.
The super regenerative receiving module uses an LC oscillator circuit with built-in amplification and shaping. The output data signal is TTL level, OOK amplitude modulated, and can be directly connected to the decoder. Product quality is consistent and cost-effective. It is currently a high-frequency receiving module widely used in the wireless remote control market. It can be used with fixed code and learning code remote controls of the same frequency on the market. The receiving module has a wider receiving bandwidth, generally ±10MHz. Generally, 5VDC is used for power supply, and the voltage can be adjusted to 3~8V under special circumstances. The static operating current of the receiving module is generally 4mA when shipped from the factory. The current can be reduced under special circumstances. The minimum current can be adjusted to 1.5mA, but the receiving sensitivity will be reduced. The output of the receiving module is a noisy output when leaving the factory. Under special circumstances, it can be changed to a noise-free output but the sensitivity will be reduced.
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