News

15 September 2009

 

Avago launches 0.25W analog variable-gain amplifiers for cellular infrastructure

Avago Technologies of San Jose, CA, USA has added two miniature 0.25 Watt analog variable-gain amplifiers to its portfolio of amplifiers for cellular infrastructure applications.

Housed in a compact 5mm x 5mm x 1.1mm, 10-lead module package, the ALM-80110/80210 variable-gain amplifiers feature a common footprint for easy integration into most base-station designs. The amplifiers also offer high linearity and dynamic range performance across 400-2700MHz and support all major cellular bands in North America, Europe and Asia.

The ALM-80110 operates at 0.4-1.6GHz and the ALM-80210 at 1.6-2.7GHz, suiting use in wireless local loop (WLL), wireless local-area network (WLAN), transmitter receiver gain control, and temperature compensation circuitry applications. Both amplifiers provide a high output 3 rd order intercept point (OIP3) level of 40dBm, which is maintained over a wide attenuation range. Also, the devices feature a wide gain control range and low power consumption, as well as what is claimed to be excellent input and output return loss.

The ALM-80110/80210 variable-gain amplifiers incorporate what is claimed to be a unique solution that integrates Avago’s high-linearity 0.25W amplifiers and silicon PIN diode-based pie attenuator into a miniature multiple-chips-on-board (MCOB) module package. Both amplifiers feature broadband fully matched input and pre-matched output for ease of use and require a minimum amount of external RF matching components, the firm says. Also, the high linearity and dynamic range performance is achieved through the use of Avago’s proprietary 0.25 micron GaAs enhancement-mode pHEMT process and low-distortion silicon pin diode technologies.

In a typical operating environment of 5V and 120mA, the ALM-80110 delivers performance of 40dBm OIP3, 40dB attenuation range, 23.3dBm output power at 1dB compress point (P1dB), 13.5dB gain, 17dB input return loss (IRL), and 12dB output return loss (ORL) at 900MHz. The ALM-80210 offers 40dBm OIP3, 35.7dB attenuation range, 23.5 dBm output power at P1dB, 9.8dB gain, 13.6dB IRL and 12.1dB ORL at 1900MHz.

The ALM-80110/80210 are priced at $2.93 each in 10,000 piece quantities.

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