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Logarithmic_limiting_amplifier

2014-11-19 18:32  
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Logarithmic_limiting_amplifier
The SL3522 shown in this figure is a 7-stage succes sive-detection log amp for use in the 100- to 600-MHz range. With the values shown, the frequency range is 500 MHz, with a 40-MHz video bandwidth, and a 450-MHz balanced RF bandwidth. Both video gain and offset are adjustable. Gain has an effect on offset, but not vice versa. Typical dynamic range is 75 dB.