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The F4481LKGI8 highly integrated quad-path TX VGA is a 400MHz to 1100MHz 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 F4481LKGI8 provides four independent transmit paths, each with a maximum gain of 28dB, an OIP3 of +40dBm, an output P1dB of +16dBm, and an NF of 5.5dB at 900MHz (typical conditions), and is powered by a 3.3V single Each channel includes an interference-free digital step attenuator that reduces gain to 31.5dB in precise 0.5dB steps.

Features

Independent four channels for FDD TX applications

RF range: 400MHz to 1100MHz

F4482 1300MHz to 2800MHz

Maximum gain: 28dB (typical at 900MHz)

Precise SPI controlled interference FreeTM gain adjustment

Gain range of 31.5dB in 0.5dB steps

NF: 5.5dB (at 900MHz)

OIP3: +40dBm (at 900MHz)

Output P1dB: +16dBm (at 900MHz)

3.3V supply voltage

ICC=520mA

Differential input impedance: 100Ω

Single-ended output impedance: 50Ω

Supports 1.8V and 3.3V logic

Channel independent standby mode for power saving

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

8mm × 8mm, 56-LGA package

Product Applications

4G and 5G multimode, multicarrier transmitters

LTE and UMTS/WCDMA base stations

Active antenna systems

Digital broadcasting

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