It is a fully integrated dual-band transceiver IP for 802.15.4g and 802.11ah applications. It is optimized to deliver superior performance for Smart Utility Network (SUN) applications. It includes dual band receiver, dual band transmitter, Frac-N frequency synthesizer and LO-chain, and all the supporting blocks such as bias and SPI. The zero-IF receive path (RX) has very high dynamic. A zero-IF TX generates low EVM signals to drive the external power amplifier. A fully integrated Frac-N frequency synthesizer generates, and the LOchain generates required low-phase-noise LO signals for TX and RX mixer.