The F0443 from Renesas is a Digital Variable Gain Amplifier (DVGA) that operates from 0.6 to 2.7 GHz. It has two independent receiver paths, each with a gain of 29.5 dB and a noise figure of 3.2 dB (at 2.5GHz). For each path, the gain control is split into four separate digital step attenuators providing up to 29 dB of attenuation in 1 or 6-dB steps. It requires a DC supply of 5 V, consumes 372 mA of current under operation and 9 mA of current in standby mode.
This DVGA can be controlled via SPI, I3C, 1-bit external pin and 2-bit external pin interfaces. It is available in a 48-LGA package that measures 7 x 7 mm with 50-ohm single-ended RF input and RF output impedances for ease of integration into the signal path. The DVGA is ideal for multi-mode, multi-carrier receivers, distributed antenna systems, digital radios and diversity/MIMO receiver applications.
