ANALOG DEVICES ADL5336-EVALZ 评估板, 中频可变增益放大器, 可编程有效值探测, ADL5336
The is an evaluation board for cascadable IF VGAS device. The ADL5336 consists of a pair of variable gain amplifiers VGAs designed for cascaded IF applications. The amplifiers have linear-in-dB gain control and operate from low frequencies to 1GHz. Their excellent gain conformance over the control range and flatness over frequency are due to Analog Device"s patented X-AMP architecture, an innovative technique for implementing high performance variable gain control. Each VGA has 24dB of gain control range. Their maximum gain can be independently programmable over a 6dB range via the SPI. The VGAs can be cascaded to provide a total range of 48dB. When connected to a 50R source through a 1:4 balun, the gain is 6dB higher. The second VGA has an SPI programmable input switch that selects one of two external inputs.
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- Pair of VGAs with rms AGC detectors
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- VGA and AGC modes of operation
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- Continuous gain control range of 48dB, Noise figure NF = 6.8dB at maximum gain IMD3 > 62dBc
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- Differential input and output multiplexed inputs for VGA2 programmable detector AGC setpoints
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- Programmable VGA maximum gain
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- power down feature