Rx Diversity FEM with Carrier Aggregation (B26, B8, B20, B1/4, B3, and B7)

The SKY13745-21 is an LNA diversity module to be used in a cellular mobile device. It supports cellular diversity receiver and localization service receiver functions.

It is compatible with 3GPP GSM, WCDMA, and LTE standards and supports the following service bands: B26, B8, B20, B1/4, B3, and B7 for the cellular part.

The SKY13745-21 is packaged in a small 3 x 5 x 0.7 mm, 29-lead surface-mount package. The part is controlled by an integrated Mobile Industry Processor Interface (MIPI®) decoder. There are separate control registers for independent control of low band, middle band, and high band. The part can operate over the temperature range of –30 °C to +85 °C.


Product LifecycleEnd Of Life
Frequency (MHz)698-2690
DescriptionDiversity Receive Front-end Module with Carrier Aggregation
Bands 1/4, 3, 7, 8, 20, 26
PackageMCM, 29-pad
Package (mm)3 x 5 x 0.7


  • RX diversity FEM with six selectable filters and LNA paths, and three Aux paths
  • Integrated SAW filter and discrete LNA gain stage
  • SAW filters:
    • B26 (859 to 894 MHz)
    • B8 (925 to 960 MHz)
    • B20 (791 to 821 MHz)
    • B1/4 (2110 to 2170 MHz)
    • B3 (1805 to 1880 MHz)
    • B7 (2620 to 2690 MHz)
  • Integrated MIPI interface
  • Small (3 x 5 x 0.7 mm) 29-lead MCM package (MSL3, 260 °C per JEDEC J-STD-020)

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