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Avago Technologies has introduced the ALM-11×36 series of failsafe bypass low-noise amplifier (LNA) modules for tower-mounted amplifiers (TMA) and base transceiver stations (BTS) applications.

The ALM-11×36 LNAs are claimed to deliver best-in-class noise performance and high linearity with a compact package.

The modules can replace large discrete and surface-mount component counts in conventional designs, shortening design cycle time and providing board space savings.

The Avago ALM-11×36 LNA modules have low noise and high linearity, achieved through the use of the company’s proprietary 0.25um GaAs Enhancement-mode pHEMT process.

Their bypass isolation eliminates the possibility of oscillation issues, and the modules also feature low bypass insertion loss and high input and output return loss.

In addition, the ALM-11×36 LNAs are equipped with a failsafe bypass function, which is especially critical for TMA applications to enable the LNA bidirectional bypass path during the absence of DC power supply.

All matching components are fully integrated within the modules and the 50ohm RF input and output pins are already internally AC coupled.

Avago said this makes the modules easy to use as the only external parts required are DC supply bypass capacitors.

The LNAs deliver optimum performance across a wide range of bands, with the ALM-11036 module covering 776-870MHz, the ALM-11136 module covering 870-915MHz, the ALM-11236 module covering 1,710-1,850MHz and the ALM-11336 module covering 1,850-1,980MHz.

All the modules share the same 7.0 x 10.0 x 1.5mm package and pin-out configuration, and are therefore suitable for common platform designs.

Avago Technologies

Avago Technologies is a leading supplier of analogue interface components for communications, industrial and consumer applications. By leveraging its core competencies in III-V compound and silicon semiconductor design and processing, the company provides an extensive range of analog, mixed signal and optoelectronics components and subsystems to approximately 40,000 end customers.

Backed by strong customer service support, the company's products serve four diverse end markets: industrial and automotive electronics, wired infrastructure, wireless communications, and consumer and computer peripherals. Avago has a global employee presence and heritage of technical innovation dating back 40 years to its Hewlett-Packard roots. Information about Avago is available on its website.

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