Superheterodyne wireless receiver module
UHF ASK demodulators, supports ASK and OOK modulation.
The receiver module has high sensitivity (-110dBm), Low power consumption, and high dynamic range (greater than 60dB).
Module uses highly integrated chip, built front-end low-noise amplifier, Mixers, filters, frequency synthesizer circuit, etc., can maximize the signal optimization.
Product Features:
| Modulation | ASK / OOK modulation |
| Receiver sensitivity | -110dBm |
| Operating frequency | 433.92 MHz (bandwidth of about ±150KHz) |
| Input voltage range | 3.0~5.0V |
| Working current (typ.) | 5.0mA (Vdd=5V), 6.0mA (Vdd=3V) |
| Quiescent Current | 1uA |
| EMI | Good selectivity and spurious radiation suppression, Easy to pass CE/FCC international certification Good local oscillator radiation suppression |
| Transmission rates | Multiple supported, Typ. 2KHz, up to 10KHz |
| Temperature range | -40~85°C |
| Ultra-small size | 30.25 × 8.5 × 1 (mm) |
| External antenna | 32cm single core wire, wound into a spiral |
Pinout:
Schematics:
UHF ASK modulated transmitters module
Supports ASK and OOK modulation.
The transmitter module integrates an analog PLL circuit and ASK modulation circuit, with a high level of integration.
Can be applied with a short-range wireless communications. Operating frequency 433MHz, transmit power is greater than 11dBm.
Product Features:
| Modulation | ASK / OOK modulation |
| Transmit power | greater than 11dBm |
| Operating frequency | 433.92 MHz |
| Input voltage range | 2.0~3.6V |
| Shutdown mode current | less than 1uA |
| Transfer rate | up to 20KHz |
| Range (Max) | 20~200 meters |
| Size | 16 x 12 x 1mm |
| Temperature range | -45~85°C |
| External antenna | 25cm ordinary multi-core or single-core line |
Pinout:
Schematics:
OOK (On-Off Key) is the slimpest form of FSK (Frequency Shift Coding):
A fixed-frequency modulation is sent for the active time, and no signal during idle.
The Frequency is set at 433.92MHz, part of ISM unlicensed spectrum, offered in the EU under ETSI EN 300 220 regulation.
Period (X): 100~500us (1bit: 400us~2ms, 1command: 12~64ms)
