commit 6c99a54e37e05659de16959ede4f7e02bbc067fb
author Ryan Wans <37909218+ryanrocket@users.noreply.github.com> Wed Mar 09 16:53:33 2022 -0500
committer GitHub <noreply@github.com> Wed Mar 09 16:53:33 2022 -0500
tree ac0cd6187057f5d99e47ddd338622ac2f5ba7f85
parent e557413067b2e3ec1fa25cc88d0aeb9f7fbb1377

Update README.md

README.md

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 ### Implementation 
 
 This AGC chip is part of a larger project; an FMCW radar for robotic applications. An AGC is paramount in radar applications where the distance between the antenna and the object for detection is unknown. If the object is further away than anticipated; amplification of the received signal will be needed. If it's too close; attenuation may be necessary to prevent 'blowout' of the reciever architecture. 
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-## Design 
-
-### Digitally-Stepped Attenuator 
-
-![dsa](docs/img/dsa_layout.png) 
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-This pseudo-differential DSA consists of 4 fixed-attenuation stages, each with SPDT transmission gates to either pass the input signal into the resistor or through to the next stage. The attenuation increases in each stage. 
-
-### Low-Noise Amplifier 
-
-![lna](docs/img/lna_layout.png) 
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-Fully differential common-source amplifier with active loads and tail current mirror. 
-
-### Power Detector 
-
-![pd](docs/img/pd_layout.png)
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-Takes the differential input and creates a self-mixed DC current, which gets mirrors and converted into a voltage.