F2955 Datasheet | Renesas

Description The F2955 is a high reliability, low insertion loss, 50Ω SP5T absorptive RF switch designed for a multitude of RF applications, including wireless munications. This device covers a broad frequency range from 50MHz to 8000MHz. In addition to providing low insertion loss, the F2955 also delivers excellent linearity and isolation performance while providing a 50Ω termination to the unused RF input ports. The F2955 also includes a patent-pending constant impedance (K|Z|™) feature . K|Z| improves system hot switching ruggedness, minimizes LO pulling in VCOs, and reduces phase and amplitude variations in distribution networks. It is also ideal for dynamic switching/selection between two or more amplifiers while avoiding damage to upstream/downstream sensitive devices, such as power amplifiers (PAs) and analog-todigital converters (ADCs). The F2955 uses a single positive supply voltage supporting three logic control pins using either 3.3V or 1.8V control logic. Connecting a negative voltage to pin 20 disables the internal negative voltage generator and bees the negative supply. Features - Five symmetric, absorptive RF ports - High isolation: 49d B at 4000MHz - Low insertion loss: 1.1d B at 4000MHz - High linearity: - IIP2 of 114d Bm at 2000MHz - IIP3 of 60.5d Bm at 4000MHz - High operating power handling: - 33d Bm CW on selected RF port - 27d Bm on terminated ports - Single 2.7V to 5.5V supply voltage - External negative supply option - 3.3V and 1.8V patible control logic - Operating temperature: -40°C to +105°C - 4 × 4 mm 24-QFN package - Pin patible with petitors petitive Advantage The F2955 provides constant impedance in all RF ports during transitions, improving a system’s hot-switching ruggedness. The device also supports high-power handling and high isolation, particularly important for DPD receiver use. - Constant impedance K|Z| during switching transition - RFX to RFC isolation = 49d B at 4GHz - Insertion loss = 1.1d B at 4GHz - IIP3: +60.5d Bm at 4GHz -...