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433M Wireless Transmitter Receiver Module

A low-power 433MHz transmitter is designed using 0.18um CMOS process for battery-less TPMS.

It is mainly composed of a PLL frequency synthesizer and a PA, and the transmitter is achieved in a fully integrated chip except for the choke and output match inductor of PA.

Based on post-simulation, locked time and phase noise of the PLL are respectively about 60us and −105dBm/Hz@300kHz, the power consumption of the transmitter is 25mW when the output power of PA is 7dBm.

The area of the whole transmitter is 1mm × 1mm, including ESD pads.

Specifications

  • Operating voltage: DC5V Quiescent Current: 4MA
  • Receiving frequency: 433.92MHZ
  • Receiving sensitivity: -105DB
  • Size: 30 * 14 * 7mm external antenna: 32CM single line, around the spire
  • Launch the first technical parameters
  • Transmission Distance: 20-200 meters (different voltage, different effects)
  • Operating voltage: 3.5-12V
  • Dimensions: 19 * 19mm
  • Transmission frequency: 433M
  • External antenna: 25cm ordinary multi-core or single wire
  • Pinout left → right: (DATA; VCC; GND)

Contents

  • 1 x 433M Wireless Transmitter Receiver Module

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