Avago Technologies - Miniature 0.25W Analog Variable Gain Amplifiers for Cellular Infrastructure Applications
Avago Technologies has announced the addition of two miniature 0.25-Watt analog variable gain amplifiers to its broad portfolio of amplifier products for use in cellular infrastructure applications. Housed in a compact 5 mm by 5 mm by 1.1 mm, 10-lead module package, Avago’s ALM-80110/80210 variable gain amplifiers feature a common footprint for easy integration into most base station designs. Additionally, these amplifiers offer high linearity and dynamic range performance and support all major cellular bands in North America, Europe and Asia.
The ALM-80110 operates from 0.4 to 1.6 GHz, while the ALM-80210 operates from 1.6 to 2.7 GHz and are ideal for use in WLL, WLAN, transmitter receiver gain control, and temperature compensation circuitry applications. Both amplifiers provide an exceptionally high Output 3rd Order Intercept Point (OIP3) level of 40 dBm, which is maintained over a wide attenuation range. Additionally, these devices feature a wide gain control range, low power consumption, as well as excellent input and output return loss.
Avago’s ALM-80110/80210 variable gain amplifiers incorporate a unique solution which 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 of these amplifiers feature broadband fully-matched input and pre-matched output for ease of use and require a minimum amount of external RF matching components. Moreover, the high linearity and dynamic range performance of these amplifiers is achieved through the use of Avago’s proprietary 0.25 um GaAs enhancement-mode pHEMPT process and low distortion silicon pin diode technologies.
In a typical operating environment of 5-volts and 120 mA, the ALM-80110 delivers superior performance of 40 dBm OIP3, 40 dB attenuation range, 23.3 dBm output power at 1dB compress point (P1dB), 13.5 dB gain, 17 dB input return loss (IRL), and 12 dB output return loss (ORL) at 900MHz. Under the same operating conditions, the ALM-80210 offers 40 dBm OIP3, 35.7 dB attenuation range, 23.5 dBm output power at P1dB, 9.8 dB gain, 13.6 dB IRL and 12.1 dB ORL at 1900 MHz.
Features
• Superior linearity and high dynamic range
• High power handling capability
• Wide gain control range
• High OIP3 across attenuation range
• Easy to use with broadband input fully matched and output pre-matched
• Common footprint, external match network and PCB layout across 400 to 2700 MHz
• Halogen free
• Pb-Free and RoHS compliant
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