3P4T Transmit/Receive LTE Switch with MIPI RFFE Compatibility

The SKY13594-666LF is a three-pole, four-throw (3P4T) switch with an integrated Mobile Industry Processor Interface (MIPI) controller. Using an advanced switching technology, the SKY13594-666LF maintains low insertion and high isolation, which makes it an ideal choice for LTE applications. Depending on the truth table settings, the following switched outputs are possible:

  • RF1 port can be connected to the RF5 port.
  • RF2 port can be connected to the RF7 port.
  • RF3 port can be connected to the RF4, RF5, RF6, or RF7 port.

  • No external DC blocking capacitors are required as long as no DC voltage is applied on any RF path.

    The SKY13594-666LF is packaged in a small 1.9 x 1.1 mm 12-lead surface-mount package that meets requirements for board-level assembly.


    • Low insertion loss optimized for FDD and TDD high-band systems
    • Integrated MIPI interface, compliant with Rev. 2.0
    • Ideal to work with SKY77661 FEM
    • Small QFN (12-lead, 1.9 x 1.1 mm) package (MSL1, 260 °C per JEDEC J-STD-020)
Product Summary SKY13594-666LF: 3P4T Transmit/Receive LTE Switch with MIPI RFFE Compatibility SKY13594_666LF_204443A_PS.pdf (175 KB)
ProductName : SKY13594-666LF
Description (Absorptive/ Reflective) : 3P4T (R)
Frequency (GHz) Min. : 2.3
Frequency (GHz) Max. : 2.7
Typ. IL (dB) : 0.3-0.45
Typ. Isol. (dB) : 30
Typ. IIP3 (dBm) : 55
Typ. IP1 dB (dBm) :
Package : QFN, 12L
Package (mm) : 1.9 x 1.1 x 0.55
Product Information: New
Description: Band Switches
Description: Diversity Switches, Tx/Rx LTE
Description: High Isolation
Description: Low Insertion Loss
Frequency Max.: ≥1 GHz and <2.9 GHz
Frequency Min.: ≥400 MHz
Function: 3P4T
Package Type: DFN, QFN, MLPD, MLPQ
Power Handling: ≥50 dBm
Status: Featured
Status: In Production
Status: New
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