AD9356 and AD9357 RF TRANSCEIVERS ADVANCE FOR SMALL 4G BASE STATIONS
Analog Devices announced of new integrated RF-to-digital baseband transceivers. The AD9356 and AD9357 integrated transceivers advance low-cost base-station designs and deployments for 4G technology, such as WiMAX and LTE (long term evolution).
“Today’s WiMAX and LTE infrastructure equipment generally rely on a multitude of discrete components, often exceeding power budgets while missing time-to-market goals,” said Tom Gratzek, product line director, WiMAX Transceiver Group, Analog Devices. “Typical picocell base-station transceivers comprise six to eight active components, while microcell base stations can easily require double this component count. Designs that exploit ADI’s new AD9356 and AD9357 integrated transceivers can reduce the component count for a 2x2 transceiver to a single device, while cutting power consumption by at least 50 percent.”
The new transceivers’ configurability allows designers to develop and maintain configurable software to support multiple platforms .
The AD9356 and AD9357 transceivers integrate 12-bit ADCs, DACs, complete RF-receive and RF-transmit signal chains, and on-chip frequency synthesizers. Embedded real-time control and calibration loops significantly reduce factory calibration and test times. The transmitter’s signal-to-noise ratio provides support for picocells and microcells from +13 dBm up to +36 dBm output power at the antenna port, while meeting the demanding requirements for 4G base stations. Designers can optimize receiver performance by configuring the transceivers to use a flexible, on-chip AGC (automatic gain control) algorithm.
The AD9356 and AD9357 transceivers support the 2.3-to-2.7-GHz and 3.3-to-3.8-GHz ranges, respectively, covering existing WiMAX bands and channel bandwidths of 3.5, 4.375, 5, 7, 8.75 and 10 MHz.
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