Multi-Channel RF Converter ICs Meet Wireless Carrier Needs

Analog Devices has introduced a mixed-signal front-end (MxFE) RF data converter platform designed to meet the performance needs for a range of wireless equipment such as 4G LTE and 5G millimeter-wave (mmWave) radios. ADI’s new AD9081/2 MxFE platform allows system developers to install multiband radios in the same footprint as single-band radios, which as much as triples call capacity available in today’s 4G LTE base stations. With a 1.2 GHz channel bandwidth, the new MxFE platform also enables wireless carriers that are adding more antennas to their cell towers to meet the higher radio density and data-rate requirements of emerging mmWave 5G.

The AD9081 and AD9082 MxFE devices integrate eight and six RF data converters, respectively, which are manufactured using 28 nm CMOS process technology. Both MxFE options achieve the industry’s widest instantaneous signal bandwidth (up to 2.4 GHz), which simplifies hardware design by reducing the number of frequency translation stages and relaxing filter requirements. This new level of integration addresses the space constraints of wireless device designers by lowering chip count and yielding a 60 percent reduction in printed-circuit-board (PCB) area compared to alternative devices.

By shifting more of the frequency translation and filtering from the analog to the digital domain, the AD9081/2 provides designers with the software configurability to customize their radios. The new multi-channel MxFE platform meets the needs of other wide-bandwidth applications in 5G test and measurement equipment, broadband cable video streaming, multi-antenna phased array radar systems and low-earth-orbit satellite networks.

The MxFE platform processes more of the RF spectrum band and embeds DSP functions on-chip to enable the user to configure the programmable filters and digital up and down conversion blocks to meet specific radio signal bandwidth requirements. This results in a 10X power reduction compared to architectures that perform RF conversion and filtering on the FPGA, while freeing up valuable processor resources or allowing designers to use a more cost-effective FPGA.

The AD9081 is priced at $1,487 (1,000s) and the AD9082 at $1,500. Both will be available for sampling in September 2019.

Analog Devices | www.analog.com

Arbitrary Waveform Generator

The AWG18 is an arbitrary waveform generator designed for use with Applicos’s ATX-series of test systems. The waveform generator features an 18-bit resolution at a 300 megasamples-per-second (MSPS) data rate and oversampling at a 600-MSPS or 1.2 gigasamples-per-second (GSPS) rate.

Testing analog systems with high-speed 14- and 16-bit data converters requires extremely clean signals. The traditional approach of filtering away the harmonics is insufficient when dealing with a high signal-to-noise ratio (SNR), maintaining a high spurious-free dynamic range (SFDR), or when a low “close-in carrier noise” is preferred. In these cases, the extra precision from an 18-bit signal value can create a reliable test-stand operation and reduce random failures.

ApplicosMany applications need to use signals other than sine waves to make additional time domain measurements. To accommodate this, the AWG18 has two signal paths: one path starts at DC for time domain and general-purpose measurements that require high-level accuracy. The other path runs from 10 to 100 MHz and is optimized for dynamic signal generation in this frequency range. The typical total harmonic distortion (THD) for frequencies up to 50 MHz is above 100 dBc.

Contact Applicos for pricing.

Applicos BV
www.applicos.com