F6123 Datasheet | Renesas

Description The F6123 is a 16-channel dual-beam receive active beamforming RFIC designed for application in Ku/CDL-Band planar phased array antennas. The IC has eight RF input ports, two RF output ports, and 16 (8 per beam) phase/amplitude control channels. The eight input ports of the IC can be driven by eight single-polarized elements or four dual-polarized elements of an electronically scanned array (ESA). Each channel has 6 bits of digital phase and gain control resolution spanning 360° and 26d B of dynamic range, enabling precise beam pattern and polarization control. The IC operates from a single supply of 2.1 - 2.5V. When paired with the Renesas F6923 LNA, it achieves a typical cascaded gain of 30d B, while minimizing the front end feed loss due to the flexibility of LNA physical placement near the antenna feeds. The chip includes power management features such as a low-power standby mode, independent enable controls on every channel, and a single-beam mode activated via a dedicated control pin. The device SPI bus and control pins operate from standard 1.8V logic at speeds up to 50MHz. Advanced digital modes and large on-chip memory allow for < 100ns beam position switching times at the array level, greatly reducing dead time and latency. Finally, the pact and CTE-matched FCBGA organic package with all single-ended 50ohm matched RF ports and 0.5mm pitch greatly simplifies the physical integration of these devices onto large antenna panels. Block Diagram Features - 14.4 - 17.3GHz operation - Supports 4 dual-pol or 8 single-pol elements - Two simultaneous and independent beam outputs - 360° phase control with 6-bit resolution - 26d B gain control with 0.45d B step size - 2.3V nominal single supply input - Standard 1.8V digital logic - IDAC for external LNA biasing - Temperature pensation - Temperature sensor w/ digital readout - Advanced digital modes with fast beam steering - On-chip beam-state memory - 3.8  4.6  0.9 mm, 63-FCBGA Typical Applications - Phased...