31 May 2016

Mouser signs exclusive global distribution deal with Guerrilla RF

Semiconductor and electronic component distributor Mouser Electronics Inc has signed an exclusive global distribution agreement with Guerrilla RF Inc of Greensboro, NC, USA, which provides monolithic microwave integrated circuits (MMICs) to wireless infrastructure original equipment manufacturers.

The Guerrilla RF product line comprises four series of low-noise amplifiers (LNAs).

The GRF205x series ultra-LNAs claim exceptional noise figure, gain and linearity, and support a wide range of LNA applications. The devices' flexible application circuits result in simple, low-cost implementations that allow for optimal efficiency and reuse, says Guerrilla RF.

The GRF2501 high-gain ultra-LNA is designed for IEEE 802.11a/n/ac/p applications in the 5GHz band (4.9-6.0GHz). The device exhibits de-embedded noise figures (NFs) as low as 0.80dB across the band. It uses a single supply voltage from 2.7V to 5.0V, with a typical bias condition of 3.3V and 12mA. The GRF2505 is a broadband ultra-low-noise linear amplifier designed for demanding 802.11ac and wireless backhaul LNA and power amplifier (PA) driver applications. It exhibits what are claimed to be outstanding broadband NF, linearity and return losses over 4.0-6.0GHz with a single match. The GRF2505 operates from a single positive supply of 1.8-5.0V with a selectable IDDQ range of 20-70mA for optimal efficiency and linearity. The amplifier is internally matched to 50Ω at the input and output ports, requiring only seven external resistor, inductor and capacitor (RLC) components.

The GRF400x series of broadband low-noise gain blocks is designed for small-cell, wireless infrastructures. The devices exhibit what is claimed to be outstanding RF performance over multiple GHz bandwidths with little or no external RF matching, with supply voltages ranging from 1.8V to 5.0V. Bias currents can be set independently from Vdd, allowing a linear solution with optimal efficiency. The amplifiers are suitable for applications requiring first- or second-stage LNA, or can be used as linear transmit drivers. The GRF4042 is a high-performance amplifier that offers bypass functionality and incorporates Guerrilla Armor technology, which provides high off-state isolation even in the presence of high-RF input powers. This isolation is especially useful in TDD systems in which significant transmitter RF power can leak into the transceiver receive path.

The GRF50x0 Power LNA series consists of high-power, low-noise devices that, with simple matching, can be tuned to cover 100MHz up to 6.0GHz (100MHz to 3.8GHz for the GRF5040) with fractional bandwidths greater than 20%. Devices in the GRF50x0 series are suitable for multi-stage LNA applications, microwave backhaul, and distributed antenna systems.

Guerrilla RF adds gain blocks with robust linearity and low noise

Guerrilla RF has introduced new additions to its family of high-linearity gain blocks featuring a unique combination of simple-application schematic, flat gain and high compressed output power, operating from 50MHz up to 8GHz. The GRF201X family of devices is offered in a 1.5mm x 1.5mm DFN-6 package and the GRF301X family is packaged in the popular SOT-89. Devices from both families provide what is claimed to be strong linearity measured over a wide temperature range from -40°C to +105°C and over-tone spacing up to 100MHz.

The GRF201X family consists of the GRF2012, GRF2013 and GRF2014. All can be operated over a wide range of Vdd from 3.0V to 9.0V. A key feature offered by the 1.5mm package is the ability to control Iddq independently from Vdd, as this allows device efficiency to be optimized for a given application requirement. When biased at 8V or 9V, the devices can provide broadband compressed output powers of 27dBm and higher. In addition to strong linearity and high gain, the GRF2013 offers very low noise figure (NF) of 1.3dB, making it suitable for broadband LNA applications.

The SOT-89 based GRF3012, GRF3013, GRF3014 and GRF3015 offer similar performance to the GRF201X devices and provide similar ranges of gain, NF and linearity. The SOT-89 variants can also be used as drop-in replacements for industry-standard SOT-89 gain blocks while offering superior performance.

The new gain blocks address a critical industry need for cost-effective, broadband amplifiers delivering strong, consistent performance over a wide range of operating conditions, says Alan Ake, VP of applications and technical marketing. "With flexible biasing and Vdd capability up to 9V, these amplifiers provide consistent, broadband IP3 performance and compressed output power that cellular infrastructure applications require," he adds. "High-performance systems demand devices which can maintain their performance under extreme operating conditions. Parts which perform well only over a narrow range of temperature and operating conditions are of limited value."

Pricing in 10,000-unit quantities is $1.75 for the GRF2012 and GRF2013, and $1.60 for the GRF3012, GRF3013 and GRF3015. Prices for the higher-power GRF2014 and GRF3014 are $1.95 and $1.80, respectively. All product families will be available for sampling in June.

Ultra-LNA families operating over 400-6000MHz for high-performance infrastructure

Guerrilla RF has added to its growing portfolio of infrastructure amplifiers by launching the GRF207X and GRF208X families of ultra-low-noise amplifiers, offered in an industry-standard 2mm x 2mm DFN-8 package.

The GRF207X and GRF208X LNA families each contain four devices internally optimized to cover the following bands: GRF2070/2080 for 0.4-1.5GHz; GRF2071/2081 for 1.4-2.7GHz; GRF2072/2082 for 2.3-3.8GHz; and GRF2073/2083 for 3.0-6.0GHz.

The RF performance of the devices in the two families is essentially the same. GRF208X offers a shutdown capability on pin6 (making the devices optimal for TDD applications), while GRF207X allows the user to set Iddq independently from Vdd via the enable input to pin1 (enabling optimal power consumption for a particular application).

The new amplifiers address a critical industry need for high-gain, stable LNAs offering the lowest possible noise figure, says Ake. "These devices enable the low cascaded receiver noise figures that cellular infrastructure applications require," he adds. "The internal architecture of these devices results in simple external matching which yields excellent fractional bandwidths exceeding 40% with a single set of matching component values. These devices deliver incredibly low NF levels. As an example, GRF2071/GRF2081 evaluation board NF at 1.9GHz is typically 0.35dB."

The GRF207X devices will begin sampling in June, and the GRF208X devices will begin sampling in July. Pricing in 10,000-unit quantities is $1.37 each.

Broadband, high-gain LNA for small cells

Guerrilla RF has added to its growing list of broadband, linear LNAs by launching the GRF2105. Targeted at small cells, cellular boosters and other broadband, high-performance applications, it offers broadband frequency coverage with a minimal number of external components. It is offered in an ultra-small 1.5mm x 1.5mm DFN-6 package, thus sharing a common pin-out with many other GRF devices including the GRF400X and GRF201X device families.

The GRF2105 can be operated over a range of Vdd from 3.0V to 5.0V and Iddq can be controlled independently from Vdd, allowing the device efficiency to optimized for a given application requirement.

"The device's flexible biasing capability allows for high levels of re-use with optimal efficiency over a wide range of linearity requirements," says Ake.

The device is internally matched to 50Ω and can cover 700-2700MHz with a single set of external components with greater than 20.5dB gain and a noise figure (NF) less than 0.8dB at 2500MHz. "Internal matching to 50Ω combined with the small package and minimal number of external components results in a compact application footprint," notes Ake. 

GRF2105 samples and evaluation boards will be available in June. Pricing in 10,000-unit quantities is $1.60.

Tags: Mouser MMIC LNA

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