Avago Technologies announced a high-gain, high-linearity power amplifier for high-data-rate applications found in 700-800 MHz cellular infrastructure equipment. The new MGA-43128 amplifier is designed to improve signal transmission with low power consumption for LTE AP, CPE, and picocell equipment. It also serves as a base station driver amplifier.
RF input is fully matched while the output includes integrated pre-match circuitry for matching and application simplicity. An integrated bypass switch controlled attenuator provides up to 18.0 dB attenuation, and the device also has a temperature-compensated power detector on chip.
Linear output power is achieved by using an Avago proprietary 0.25 Ám GaAs Enhancement-mode pHEMT process, which allows single 5V supply operation and useable performance down to 3.3V. The MGA-43128 has a 5.0 x 5.0 x 0.85 mm surface mount, 28-lead QFN package and operates over a temperature range of -40░ C to +85░ C. The QFN package is lead free and halogen free, and it has a moisture sensitivity rating of MSL-2a to permit a floor-life of four weeks out of the bag.
Additional MGA-43128 Features
- Gain of 33.4 dB
- Linearity performance of 29.1 dBm linear Pout at 2.5% error vector magnitude (EVM)
- 750 MHz efficiency: 22% PAE at Linear Pout
- Switchable gain: 18 dB attenuation using one single CMOS compatible switch pin
- 3GPP spectral mask complaint at 29 dBm output power
- Power shutdown feature with <50 uA shutdown current
- Built-in output power detector
The MGA-43128 is priced at $8.03 each in 10,000 piece quantities. Samples and production quantities are available now through the Avago direct sales channel and via worldwide distribution partners. An evaluation board is also available. More Information:Product page