F2923

Constant Impedance K|Z| SP2T RF Switch GENERAL DESCRIPTION The F2923 is a low insertion loss 50Ω SP2T absorptive RF Switch designed for a multitude of wireless and other RF applications. This device covers a broad frequency range from 300 kHz to 8000 MHz. In addition to providing low insertion loss, industry leading isolation at 2 GHz and excellent linearity, the F2923 also includes a patent pending constant impedance (KZ) feature. KZ 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 PAs and ADCs. The F2923 uses a single positive supply voltage of 3.3 V supporting three states using either 3.3 V or 1.8 V control logic. An added feature includes a ModeCTL pin allowing the user to control the device with either 1-pin or 2-pin control. COMPETITIVE ADVANTAGE The F2923 provides constant impedance on all ports during transitions without compromising isolation, linearity, or insertion loss. Constant impedance K|Z| during switching transition VSWR RF_Com port 1.4:1 vs. 9:1 for Standard Switch Insertion Loss = 0.48 dB* IIP3: +66 dBm* RF1/RF2 to RF_COM Isolation = 74 dB* Extended temperature: -55 °C to +105 °C Negative supply voltage not required *2 GHz APPLICATIONS Base Station 2G, 3G, 4G Portable Wireless Repeaters and E911 systems Digital Pre-Distortion Point to Point Infrastru...