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ADL6331ACCZB transmit variable gain amplifier (TxVGA) provides an interface from RF digital-to-analog converters (RF DACs) to a singled-ended power amplifier (PA) signal chain. Each ADL6331ACCZB IC is composed of a balun, two differential RF amplifiers with bypass attenuators, and a digital step attenuator (DSA) to provide suitable transmitter performance in a 24-terminal, 4.0 mm x 4.0 mm LGA package.

Features of ADL6331ACCZB

Broadband TxVGA interfacing RF-DAC to beamformer and PA

Operating frequency range: 0.38 GHz to 15 GHz, 2 product variants

ADL6331-A: 0.38 GHz to 8.0 GHz

ADL6331-B: 1.0 GHz to 15.0 GHz

Optimizes common-mode rejection of RF-DAC, even-order harmonics, and intermodulation

50 Ω differential inputs and 50 Ω single-ended outputs

Integrated broadband RF output balun

70 dB of gain control range in 1 dB step

RF DSA range: 24.0 dB with 1.0 dB step

Amplifier bypass loss of 12 dB each

Asynchronous toggle between multiple pre-defined attenuation values and bypass amplifier stages.

Power gain at 4 GHz: 15.5 dB (ADL6331-A), 15.8 dB (ADL6331-B)

Noise figure at 4 GHz: 7.5 dB (ADL6331-A), 8.1 dB (ADL6331-B)

OIP3 at 4 GHz: 32.8 dBm (ADL6331-A), 31.8 dBm (ADL6331-B)

OIP2 at 4 GHz: 59.7 dBm (ADL6331-A), 56.2 dBm (ADL6331-B)

OP1dB at 4 GHz: 12.2 dBm (ADL6331-A), 12.3 dBm (ADL6331-B)

Fully programmable through a 3- or 4-wire SPI

Single 3.3 V supply

24-terminal, 4.0 mm × 4.0 mm land grid array (LGA)

Applications of ADL6331ACCZB

Aerospace and defense

Instrumentation and test equipment

Communication systems

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