S2-LPTX - STMicroelectronics

S2-LPTX Sub-1 GHz proprietary radio transmitter

The S2-LPTX is a high performance ultra-low power RF transmitter, intended for RF wireless applications in the sub-1 GHz band. It is designed to operate in both the license-free ISM and SRD frequency bands at 433, 868 and 920 MHz, but can also be programmed to operate at other additional frequencies in the 413-479 MHz, 826-958 MHz. The S2-LPTX supports diffe.

Features

• Frequency bands:
  – 413-479 MHz
  – 826-958 MHz
• Modulation schemes:
  – 2(G)FSK, 4(G)FSK
  – OOK, ASK
• Air data rate from 0.1 to 500 kbps
• Ultra-low power consumption:
  – 10 mA TX @ +10 dBm
• Programmable RF output power up to +16 dBm
• Programmable channel spacing
• Fast start-up and frequency synthesizer settling time
• Battery indicator and low battery detector
• TX 128 bytes FIFO buffers
• 4-wire SPI interface
• ST companion integrated filter chips are available
• Fully integrated ultra-low power RC oscillator
• Wake-up driven by internal timer or external event
• Flexible packet length with.