2.4 GHz Transmit/Receive Front-end Module with Integrated Low-Noise Amplifier

Skyworks SKY65344-21 is a high-efficiency Front-End Module (FEM) for ZigBee and other 2.4 GHz ISM band applications. The small, 6 x 6 mm Multi-Chip Module (MCM) contains a 2400 to 2500 MHz high-efficiency transmit path and a low-loss bidirectional path. The bidirectional path can be used to directly connect the antenna port to a directional RF port.

The transmit path consists of an harmonic filter and high efficiency Power Amplifier (PA) capable of providing +20 dBm of power at the antenna port. Also included is an internal balun to allow use of differential input signals.

The receive path contains a high isolation transmit/receive (T/R) switch, Low-Noise Amplifier (LNA), and balun for low-noise differential output.

The device is mounted in a 20-pin, 6 x 6 mm MCM Surface- Mounted Technology (SMT) package, which allows for a highly manufacturable low-cost solution.

Please note: SKY65344 is not recommended for new designs. The suggested replacement is SE2432L.


    • Transmit output power > +20 dBm
    • Receive path NF < 2.2 dB
    • High efficiency PA
    • Programmable transmit power levels
    • Configurable transmit/bidirectional paths
    • Internal switching and control circuits
    • Internal RF match and bias circuits
    • Single DC supply = 3.3 V
    • Interfaces seamlessly with Ember EM250, EM260, and EM35x ZigBee transceivers
    • All RF ports are internally DC blocked
    • Small footprint, MCM (20-pin, 6 x 6 mm) SMT package (MSL3, 260 °C per JEDEC J-STD-020)

Images & Diagrams


    • RF Frequency (MHz)
    • 2400-2500
    • Description
    • Rx Insertion Loss (dB) Typ.
    • 802.11 WLAN Standard
    • Rx Gain (dB) Typ.
    • 10
    • Tx Gain (dB)
    • 17
    • Rx NF (dB) Typ.
    • 2.2
    • Saturated Output Power (dBm) Typ.
    • 20
    • Supply Voltage (V)
    • 3.3
    • Package
    • MCM, 20-pin
    • Package (mm)
    • 6 x 6 x 1.3

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