Avago’s newest power amplifier family is optimized for frequency in order to deliver better performance across major cellular frequency bands. A common footprint and PCB layout allows a single design to support multiple frequencies and geographic markets with a choice of output power. The devices feature high gain which can reduce the total number of RF stages needed.
The MGA-31189 and MGA-31389 serve applications from 50 MHz to 2.0 GHz and the MGA-31289 and MGA-31489 from 1.5 GHz to 3.0 GHz, thus the MGA-31×89 series covers all the major cellular bands — GSM, CDMA, and UMTS — plus next generation LTE bands.
The family offers a choice of power levels in each pair of frequency-optimized devices, and these devices are designed with a common package footprint and pin-out and a single PCB design supports multiple frequency bands. This simplifies the PCB layout and overall design for system engineers developing new LTE band infrastructure.
Available in the compact, industry standard SOT-89 package, the new Avago MGA-31×89 0.25 watt and 0.10 watt gain block power amplifiers can also replace existing market solutions as a pin-to-pin, drop-in replacement offering better linearity and power performance.
MGA-31189 and MGA-31389 Key Features (Typical values at 900 MHz)
• Superior Linearity Figure of Merit1 (LFOM): 14.5 dB (MGA-31189), 13.3 dB (MGA-31389)
• High output third-order intercept-point: 42 dBm (MGA-31189), 38.6 dBm (MGA-31389)
• High Gain: 21 dB gain (MGA-31189), 21.3 dB (MGA-31389)
• Gain flatness over a 100 MHz bandwidth: 0.1 dB (MGA-31189), 0.14 dB (MGA-31389)
• Low Noise Figure: 2 dB (MGA-31189), 2 dB (MGA-31389)
• High output power at 1 dB gain compression (P1dB): 24 dBm (MGA-31189), 22.2 dBm (MGA-31389)
• Low quiescent current at with single 5 V supply: 111 mA (MGA-31189), 73 mA (MGA-31389)
MGA-31289 and MGA-31489 Key Features (Typical values at 1900 MHz)
• Superior Linearity Figure of Merit1 (LFOM): 14 dB (MGA-31289), 11.9 dB (MGA-31489)
• High output third-order intercept-point: 41.8 dBm (MGA-31289), 37.2 dBm (MGA-31489)
• High Gain: 18.7 dB gain (MGA-31289), 21.3 dB (MGA-31489)
• Gain flatness over a 100 MHz bandwidth: 0.1 dB (MGA-31289), 0.15 dB (MGA-31489)
• Low Noise Figure: 2 dB (MGA-31289), 2.1 dB (MGA-31489)
• High output power at 1 dB gain compression (P1dB): 23.6 dBm (MGA-31289), 21.5 dBm (MGA-31489)
• Low quiescent current at with single 5 V supply: 124 mA (MGA-31189), 71 mA (MGA-31389)