Analog Devices ADRV9009 Product Info

The ADRV9009 is a highly integrated, radio frequency (RF), agile transceiver offering dual transmitters and receivers, integrated synthesizers, and digital signal processing functions. The IC delivers a versatile combination of high performance and low power consumption demanded by 3G, 4G, and 5G macro cell time division duplex (TDD) base station applications.

The receive path consists of two independent, wide bandwidth, direct conversion receivers with state-of-the-art dynamic range. The device also supports a wide bandwidth, time shared observation path receiver (ORx) for use in TDD applications. The complete receive subsystem includes automatic and manual attenuation control, dc offset correction, quadrature error correction (QEC), and digital filtering, thus eliminating the need for these functions in the digital baseband. Several auxiliary functions, such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and general-purpose inputs/outputs (GPIOs) for the power amplifier (PA), and RF front-end control are also integrated.

In addition to automatic gain control (AGC), the ADRV9009 also features flexible external gain control modes, allowing significant flexibility in setting system level gain dynamically.

The received signals are digitized with a set of four high dynamic range, continuous time Σ-Δ ADCs that provide inherent antialiasing. The combination of the direct conversion architecture, which does not suffer from out of band image mixing, and the lack of aliasing, relaxes the requirements of the RF filters when compared to traditional intermediate frequency (IF) receivers.

The transmitters use an innovative direct conversion modulator that achieves high modulation accuracy with exceptionally low noise.

The observation receiver path consists of a wide bandwidth, direct conversion receiver with state-of-the-art dynamic range.

The fully integrated