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resources:eval:user-guides:adar2004-evalz [26 Mar 2019 20:54]
wsapia Initial creation
resources:eval:user-guides:adar2004-evalz [20 Jun 2019 18:54] (current)
wsapia Add text to recommend that bias points are left as is
Line 126: Line 126:
  
 Follow the below steps to configure the Multiplier block for an LO signal of 4.75GHz (mixer LO signal of 19GHz): Follow the below steps to configure the Multiplier block for an LO signal of 4.75GHz (mixer LO signal of 19GHz):
-  - Choose ​bias points from the dropdowns for the LO input buffer stages ​and click on the amplifier itself to enable the buffer. The buffer will change from grey to blue. +  - If the recommended bias conditions aren't sufficient, choose ​bias points from the dropdowns for the LO input buffer stages. Click on the amplifier itself to enable the buffer. The buffer will change from grey to blue. 
-  - Choose ​a bias point from the dropdown for the Mid-Band multiplier/​amplifier ​and check the “Active” box next to the multiplier/​amplifier. This will enable the circuit and change the input/​output switches to the middle setting. The “Ready” checkbox should automatically be checked as well. The Mid-Band amplifier will change from grey to blue.+  - If the recommended bias condition isn't sufficient, choose ​a bias point from the dropdown for the Mid-Band multiplier/​amplifier. Check the “Active” box next to the multiplier/​amplifier. This will enable the circuit and change the input/​output switches to the middle setting. The “Ready” checkbox should automatically be checked as well. The Mid-Band amplifier will change from grey to blue.
   - Be sure that the box setting the bandpass filters to their low corners is **//not//** checked.   - Be sure that the box setting the bandpass filters to their low corners is **//not//** checked.
   - Click “Apply Changes” at the top-left of the page to write all the new settings to the part.   - Click “Apply Changes” at the top-left of the page to write all the new settings to the part.
  
 ===== Receiver Block Setup ===== ===== Receiver Block Setup =====
-The Receiver block is designed to take a received signal from the 4 external antennae as well as an LO signal from teh Multiplier block, amplify and convert the received signal to an IF using all four LNA/Mixer channels, and scale the output signal using four independently controlled IF amplifiers. To accomplish this, the Receiver block contains four Low Noise Amplifiers (LNAs), four active mixers, two stages of active LO splitters and four Variable Gain Amplifiers (VGAs). It should be noted that all four channels are intended to be operated together, but any combination of channels can be enabled at once.+The Receiver block is designed to take a received signal from the 4 external antennae as well as an LO signal from the Multiplier block, amplify and convert the received signal to an IF using all four LNA/Mixer channels, and scale the output signal using four independently controlled IF amplifiers. To accomplish this, the Receiver block contains four Low Noise Amplifiers (LNAs), four active mixers, two stages of active LO splitters and four Variable Gain Amplifiers (VGAs). It should be noted that all four channels are intended to be operated together, but any combination of channels can be enabled at once.
  
 Follow the below steps to configure the Receiver block to receive a signal at 19.1GHz and use the 19GHz signal from the Multiplier block to output an IF signal at 100MHz on all channels: Follow the below steps to configure the Receiver block to receive a signal at 19.1GHz and use the 19GHz signal from the Multiplier block to output an IF signal at 100MHz on all channels:
   - Enable all channels by clicking all the enable checkboxes to the left of the LNAs.   - Enable all channels by clicking all the enable checkboxes to the left of the LNAs.
-  - Choose ​a bias point for the LNAs from the dropdown. +  - If the recommended bias condition isn't sufficient, choose ​a bias point for the LNAs from the dropdown. 
-  - Choose ​a bias point for the Mixers from the dropdown. +  - If the recommended bias condition isn't sufficient, choose ​a bias point for the Mixers from the dropdown. 
-  - Choose ​a bias point for the VGAs from the dropdown. +  - If the recommended bias condition isn't sufficient, choose ​a bias point for the VGAs from the dropdown. 
-  - Choose ​a gain setting for each VGA using the associated dropdown. +  - If the recommended bias condition isn't sufficient, choose ​a gain setting for each VGA using the associated dropdown. 
-  - Choose ​an output common mode voltage (V<​sub>​OCM</​sub>​) from the dropdown. +  - If the recommended bias condition isn't sufficient, choose ​an output common mode voltage (V<​sub>​OCM</​sub>​) from the dropdown. 
-  - Choose ​a bias point for each stage of the active splitters from the dropdowns. Enable the splitters by clicking them. They will change from grey to blue.+  - If the recommended bias condition isn't sufficient, choose ​a bias point for each stage of the active splitters from the dropdowns. Enable the splitters by clicking them. They will change from grey to blue.
   - Enable all the LNAs by clicking the "​Enable LNAs" checkbox. The LNAs will turn from grey to blue.   - Enable all the LNAs by clicking the "​Enable LNAs" checkbox. The LNAs will turn from grey to blue.
   - Enable all the Mixers by clicking the "​Enable Mixers"​ checkbox. The Mixers will turn from grey to blue.   - Enable all the Mixers by clicking the "​Enable Mixers"​ checkbox. The Mixers will turn from grey to blue.
resources/eval/user-guides/adar2004-evalz.txt · Last modified: 20 Jun 2019 18:54 by wsapia