H34s Wireless Module 2-12v 315mhz/433mhz Frequency Wide Voltage Ask Remote Control Transmitter Module Rf Wireless Module

Parameter:

Operating frequency: 315MHz

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: 50Ω

Data input: Compatible with CMOS 3-5V level standard

Dimensions: 10. 5X6.5mmX2.0mm [width X length X thickness]

Operating 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, this module should be

The DAT data terminal is directly connected to the output of the coding IC; some coding ICs output a 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 for the wireless transceiver module. If the antenna is not connected or used incorrectly, the use effect will be affected.

As a result, the wireless transceiver module usually uses two kinds of antennas.

Type 1: Use rod antenna or single/multi-strand wire as antenna, 315MHz corresponds to 230mm long,

433.92MHz corresponds to a length of 170mm and a diameter of 0.5mm to 5mm.

The antenna is spread out and away from the metal body. This kind of antenna has good effect and is simple and practical. It is the preferred type.

Type 2: Using a PCB antenna, the effect is better and the product consistency is strong, but it needs special design.

Installation method: Since there is no device on the back of this module, it can also be installed flat on the back against the circuit board; this module

It has a large solder hole design, which can be soldered to the pin header or directly soldered on the circuit board, and supports wave soldering and reflow.

Flow soldering; it can also be slotted on the circuit board and the module can be inserted on the circuit board.

Package list:

Module*1