RX Diversity FEM with Carrier Aggregation (B26, B8, B12/13, B2/25, B4, and B7)

The SKY13746-21 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, B12/13, B2/25, B4, and B7 for the cellular part.

The SKY13746-21 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.

Please note: SKY13746-21, SKY13746-21A and SKY13746-21B are being discontinued and are not recommended for new designs.


    • 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)
      • B12/13 (729 to 756 MHz)
      • B2/25 (1930 to 1995 MHz)
      • B4 (2110 to 2155 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)

Images & Diagrams


    • Frequency (MHz)
    • 698-2690
    • Description
    • Diversity Receive Front-end Module with Carrier Aggregation
      Bands 2/25, 4, 7, 12/13, 26
    • Package
    • MCM, 29-pad
    • Package (mm)
    • 3 x 5 x 0.8

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