GENERAL DESCRIPTION

The AD9371 is a highly integrated, wideband RF transceiver offering dual channel transmitters and receivers, integrated synthesizers, and digital signal processing functions. The IC delivers a versatile combination of high performance and low power consumption required by 3G/4G micro and macro BTS equipment in both FDD and TDD applications. The AD9371 operates from 300 MHz to 6000 MHz, covering most of the licensed and unlicensed cellular bands. The IC supports receiver bandwidths up to 100 MHz. It also supports observation receiver and transmit synthesis bandwidths up to 250 MHz to accommodate digital correction algorithms. The transceiver consists of wideband direct conversion signal paths with state-of-the-art noise figure and linearity. Each complete receiver and transmitter subsystem includes dc offset correction,quadrature error correction (QEC), and programmable digital filters, eliminating the need for these functions in the digital baseband. Several auxiliary functions such as an auxiliary analogto-digital converter (ADC), auxiliary digital-to-analog converters(DACs), and general-purpose input/outputs (GPIOs) are integrated to provide additional monitoring and control capability.

An observation receiver channel with two inputs is included tomonitor each transmitter output and implement interference mitigation and calibration applications. This channel also connects to three sniffer receiver inputs that can monitor radio activity indifferent bands.

FEATURES

Dual differential transmitters (Tx)

Dual differential receivers (Rx)

Observation receiver (ORx) with 2 inputs

Sniffer receiver (SnRx) with 3 inputs

Tunable range: 300 MHz to 6000 MHz

Tx synthesis bandwidth (BW) to 250 MHz

Rx BW: 8 MHz to 100 MHz

Supports frequency division duplex (FDD) and time division duplex (TDD) operation

Fully integrated independent fractional-N radio frequency (RF)

synthesizers for Tx, Rx, ORx, and clock generation

JESD204B digital interface

APPLICATIONS

3G/4G micro and macro base stations (BTS) 3G/4G multicarrier picocells FDDandTDD active antenna systems Microwave, nonline of sight (NLOS) backhaul systems