The ADRV9004 from Analog Devices is a 2x2 RF Transceiver that operates from 30 to 6000 MHz covering the UHF, VHF, cellular frequency bands, and industrial, scientific & medical (ISM) bands. It has dual-channel transmitters, dual-channel receivers, integrated synthesizers, and digital signal processing functions. The transceiver has a Tx/Rx bandwidth from 12 kHz (narrowband) to 40 MHz (wideband). It is designed for performance vs power consumption system optimization and is configurable. The device is ideally suited for demanding, low-power, portable, and battery-powered equipment.
The ADRV9004 consists of direct conversion signal paths with state-of-the-art noise figures and linearity. Each complete receiver and transmitter subsystem includes dc offset correction, quadrature error correction (QEC), and programmable digital filters, which eliminate the need for these functions in the digital baseband. It also has several auxiliary functions, such as auxiliary analog-to-digital converters (ADCs), auxiliary digital-to-analog converters (DACs), and general-purpose inputs/outputs (GPIOs), which are integrated to provide additional monitoring and control capability. This transceiver can perform fast frequency hopping, multichip synchronization capabilities, and dynamic profile switching for dynamic data rates and sample rates.
The fully integrated phase-locked loops (PLLs) provide high performance, low power, fractional-N frequency synthesis for the transmitter, receiver, and clock sections. All voltage-controlled oscillator (VCO) and loop filter components are integrated to minimize the external component count. It features low-power sleep and monitor modes to save power and extend the battery life of portable devices while monitoring communication. The ADRV9004 requires a DC supply of /1.3/1.8 V and can be controlled via 4-wire SPI or LVDS & CMOS synchronous serial (SSI) data interfaces. It is available in a 196-ball CSP_BGA package that measures 12 x 12 mm and is ideal for mission-critical communications and time division duplexing (TDD) & frequency division duplexing (FDD) applications.
