Skyworks Unveils Universal Front-End Module for LTE-M/NB-IoT Applications

Skyworks has introduced a new LTE-M/NB-IoT front-end solution for low-power, low-data rate Internet of Things (IoT) applications that provide global coverage. The SKY68020-11 is designed to meet the most difficult network operator band specifications, this advanced multi-band front-end module is system-on-chip (SoC) agnostic and offers broad frequency range and excellent harmonic performance. Target customers for this RFFE include LTE-M and NB-IoT device manufacturers developing global SKUs for both fixed and mobile wireless IoT products.

The SKY68020-11 is a hybrid, multi-band multi-chip RF front-end (RFFE) module supporting cellular LTE-M/NB-IoT (half-duplex system) transceiver platforms. The module integrates the entire RF front end necessary for an LTE multi-band radio operating in low-band (5, 8, 12, 13, 14, 17, 18, 19, 20, 26, 28, 71, and 85), and mid-band (1, 2, 3, 4, 25, 39, 66, and 70) frequencies, including Rx low-pass filters, broadband PA with bias controller, Tx low-pass harmonic filter, antenna switch, and MIPI RFFE controller.

Key features include:

  • Output power: +24 dBm, optimized to support LTE for 1 RB to 6 RB
  • Broadband PA supporting APT mode of operation or Vcc fixed supply: 2.85 V to 4.5 V
  • Integrated Tx low-pass filters for optimized harmonic rejection
  • Integrated SP6T antenna Tx/Rx switch
  • Integrated Rx low-pass filters for out-of-band rejection
  • Two broadband, high-power AUX ports for additional band support
  • Low leakage current: 0.4 uA
  • Adaptive biasing scheme for maximum PA efficiencies
  • MIPI RFFE control interface, 2.0 compliant
  • Pin-to-pin compatible with the SKY68000-31, SKY68001-31, and SKY68001-41
  • Operating temperature range: -40°C to +85°C
  • Small, low-profile package (4 mm x 5 mm x 0.9 mm) (MSL3 @ 260 °C per JEDEC J-STD-020)

Click here to learn more about this IoT FEM.