SAN JOSE, CAAvago Technologies has introduced the ALM-1222 and ALM-1322 low-noise amplifier (LNA) modules optimized for linearity and gain. The balanced amplifier modules operate in the 1.8- to 2.2-GHz frequency range. Housed in what Avago reports is the industry’s smallest package (5.0 mm x 6.0 mm x 1.1 mm), they are well suited for use in diversity antennas, tower-mounted amplifiers (TMAs) and front-end, low-noise amplifiers in macro-cell, micro-cell and pico-cell cellular base stations and repeaters.
The LNAs’ performance characteristics meet the requirements for the extended global system for mobile communications (EGSM), GSM, personal communications system (PCS) and wideband code division multiple access (W-CDMA) networks.
Each amplifier module consists of two branches; each branch consists of one low-noise transistor cascaded with a high-linearity driver transistor to achieve its combination of noise figure, gain and linearity. Noise performance is a result of the company's proprietary 0.5-micron GaAs E pHEMT (enhancement-mode pseudomorphic high electron mobility transistor) process. All matching components are fully integrated within the module, and the 50-ohm RF input and output pins are internally AC-coupled.
At 2 GHz, operating at +5VDC, 280 mA (typical) per section, the Avago ALM-1222 provides 31 dB gain, 0.62 dB noise figure (NF), +43.7 dBm output third-order intercept point (OIP3), +27.5 dBm output power at 1dB gain compression (P1dB), and 45 dB reverse isolation.
The lower-current ALM-1322 consumes 100 mA (typical) at +5VDC, making it a good choice for battery-operated applications such as radio cards. Its performance characteristics at 2 GHz, operating at +5VDC, 100 mA (typical) per section are 29.5 dB gain, 0.57 dB NF, 35.6 dBm OIP3, +17 dBm P1dB, and 42 dB reverse isolation.
The ALM-1222 MMIC LNA is priced at $11.25 each, and the ALM-1322 low-current LNA is priced at $10.00 each, both in 1,000- to 2,000-piece quantities. Samples and production quantities are available now.
Click here for the ALM-1222 data sheet.
Click here for the ALM-1322 data sheet.
+1 800 235 0312, www.avagotech.com/rf