433MHz 315MHz H34S RF Transmitter Module Transmission Module Wireless Remote Control Long Distance Transmission Module
Features:
1. It has a very wide operating voltage range, which can be powered by 2~12V batteries or can be powered by a regulated power supply
2. Very low power consumption, 18mA is emitted when 3V power is supplied, and it is close to zero when not transmitting
3. High power output, +18dBm when 12V power supply
4. Built-in harmonic suppression circuit, pure output spectrum, built-in harmonic suppression circuit
5. Stable and reliable, with a wide operating temperature range, suitable for harsh working environments
6. With ultra-small size (10.5*6.5mm*2.0mm)
7. There are no components on the back of the module, which can be installed close to the circuit board
Parameter:
Working frequency: 315MHz/433.92MHz
Working voltage: 2 ~12V
Emission current: typical 18mA, maximum 20mA (3V power supply, 40% modulation duty cycle)
Modulation method: ASK/00K
Output power: typical 15dBm(3V), 16dBm(5V), 18dBm(12V)
Harmonic suppression: >40dBc
Transmission rate: up to 4.8kbps
Frequency deviation: maximum ±100KHz
Antenna impedance: 50?
Data input: compatible with CMOS 3-5V level standard
Dimensions: 10. 5X6.5mmX2.0mm [Width X Length X Thickness]
Working temperature: -45 to +85""C
Precautions:
The DAT data terminal input is compatible with the 3-5VCMOS standard. When the 3-5V logic level is driven, the module should be
The DAT data terminal is directly connected to the output of the encoding IC, some encoding ICs output 12V logic level, at this time
A 47K resistor should be connected in series between the DAT data input and the encoder output to protect the DAT data terminal.
The antenna is very important to the wireless transceiver module. If the antenna is not connected or the antenna is used incorrectly, it will affect the use effect.
Therefore, the wireless transceiver module usually uses two kinds of antennas.
Type 1: Use whip antenna or single/multi-strand wire as antenna, 315MHz corresponds to 230mm long,
433.92MHz corresponds to 170mm length and a diameter of 0.5mm to 5mm. When using this antenna, pay attention to
The antenna is spread out and away from the metal body. This kind of antenna has good effect, simple and practical, and is the preferred type.
The second type: using PCB antenna, the effect is better, the product consistency is strong, but it needs special design.
Installation method: Since there are no components on the back of this module, it can also be installed lying on the back of the circuit board, this module
It has a large solder hole design, which can be used for soldering pin headers or directly soldering on the circuit board. It supports wave soldering and return.
Flow welding, the module can also be inserted into the circuit board by slotting the circuit board.
Package list:
Module*1