Datasheet4U Logo Datasheet4U.com

Si4438 - LOW-CURRENT TRANSCEIVER

General Description

d 525 MHz.

The Si4438 is targeted at the Chinese smart meter market and n is especially suited for electric meters.

Key Features

  • Frequency.
  • Excellent selectivity performance range = 425.
  • 525 MHz.
  • 58 dB adjacent channel.
  • Receive sensitivity =.
  • 124 dBm.
  • 75 dB blocking at 1 MHz.
  • Modulation.
  • (G)FSK.
  • Antenna diversity and T/R switch control.
  • OOK.
  • Highly configurable packet handler.
  • Max output power.
  • TX and RX 64 byte FIFOs.
  • +20 dBm.
  • Auto frequency control (AFC).
  • Low active power consumption.
  • Automatic gain control (AGC.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
SI4430BDY N-Channel MOSFET Vishay Siliconix
SI4430DY N-Channel MOSFET Vishay Siliconix
SI4431ADY P-Channel MOSFET Vishay Siliconix
SI4431BDY P-Channel MOSFET Vishay Siliconix
SI4432 ISM Transceiver Silicon Labs

Other Datasheets by Silicon Laboratories

Part Number Description
Si4430 ISM TRANSCEIVER
Si4431 ISM TRANSCEIVER
Si4455 LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER
Si4455-C LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER / TRANSMITTER AND RECEIVER
Si4460 LOW-CURRENT TRANSCEIVER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Si4438 HIGH-PERFORMANCE, LOW-CURRENT TRANSCEIVER Features  Frequency  Excellent selectivity performance range = 425–525 MHz 58 dB adjacent channel  Receive sensitivity = –124 dBm 75 dB blocking at 1 MHz  Modulation (G)FSK  Antenna diversity and T/R switch control OOK  Highly configurable packet handler  Max output power  TX and RX 64 byte FIFOs +20 dBm  Auto frequency control (AFC)  Low active power consumption  Automatic gain control (AGC) 14 mA RX  Low BOM  Ultra low current powerdown modes  Low battery detector  Temperature sensor    30 nA shutdown, 50 nA standby Data rate = 100 bps to 500 kbps Fast wake and hop times  Power supply = 1.8 to 3.6 V  20-Pin QFN package IEEE 802.15.