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The F4482LKGI8 highly integrated quad-path TX VGA is a 1300MHz to 2800MHz DVGA with 100Ω differential inputs and 50Ω single-ended outputs. The device is targeted for FDD and TDD applications in the 400MHz to 4200MHz frequency range.The F4482 provides four independent transmit paths, each with a typical maximum gain of 28dB, an OIP3 of +34dBm, an output P1dB of +17dBm, and an NF of 5.7dB, and is powered by a single 3.3V power supply with an ICC of only 500mA.Each channel includes an interference-free digital step attenuator that reduces gain to 31.5dB in precise 0.5dB steps.

Product Features

Independent four-channel for FDD TX applications

RF range: 1300MHz to 2800MHz

F4481 400MHz to 1100MHz

Maximum gain: 28dB (typical at 2100MHz)

Precise SPI controlled interference FreeTM gain adjustment

Gain range of 31.5dB in 0.5dB steps

NF: 5.7dB (at 2100MHz)

OIP3: +34dBm (at 2100MHz)

Output P1dB: +17dBm (at 2100MHz)

3.3V supply voltage

ICC=500mA

Differential input impedance: 100Ω

Single-ended output impedance: 50Ω

Supports 1.8V and 3.3V logic

Independent channel standby mode for power saving

Operating temperature (TEP) range: -40°C to +105°C

8mm × 8mm, 56-LGA package

Typical Applications

4G and 5G multimode, multicarrier transmitters

LTE and UMTS/WCDMA base stations

Active antenna systems

Digital broadcasting

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