Wiki

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
resources:eval:user-guides:circuits-from-the-lab:cn0534 [27 Oct 2021 08:39]
erbe reyta [Connectors]
resources:eval:user-guides:circuits-from-the-lab:cn0534 [30 Nov 2021 19:49]
Brandon Bushey updated intro paragraph
Line 3: Line 3:
 ===== Overview ===== ===== Overview =====
  
-The International Telecommunication Union (ITU) allocates the unlicensed ​5.8 GHz industrial, scientific, and medical (ISM) radio frequency band for use worldwide. Advancements in wireless technologies and standards, as well as minimal regulatory compliance requirements,​ have made this frequency band popular for short range, wireless communication systems. ​+The International Telecommunication Union (ITU) allocates the un-licensed ​5.8 GHz industrial, scientific, and medical (ISM) radio frequency band for use worldwide. Advancements in wireless technologies and standards, as well as minimal regulatory compliance requirements,​ have made this frequency band popular for short range, wireless communication systems.
  
-The 5.8GHz band is preferred for short-range digital communication applications (such as WiFi) because of the number of channels and the bandwidth available. While the transmission range is shorter ​than that of the 2.4GHz band, its 150MHz ​bandwidth accommodates up to 23 non-overlapping WiFi channels. ​ Additional ​common ​uses include software defined radio, wireless access points, public safety radio, wireless repeaters, femtocells, and LTE/​WiMAX/​4G,​ BTS infrastructure.+The 5.8 GHz band is preferred for short range digital communication applications (such as WiFi) because of the number of channels and the bandwidth available. While the transmission range is short-er ​than that of the 2.4 GHz band, its 150 MHz bandwidth accommodates up to 23 non-overlapping WiFi channels. Additional ​com-mon ​uses include software defined radio, wireless access points, public safety radio, wireless repeaters, femtocells, and Long-Term Evolution (LTE)/Worldwide Interoperability for Microwave Access (WiMAX)/4G, base transceiver station (BTSinfrastructure.
  
-This design provides ​high gain, robust overpower monitoring, and protection all in a small footprint, a great addition to any ISM band application where low signal strength or distance may be a complication.  +This design provides high gain, robust overpower monitoring, and protection all in a small footprint, ​which is a great addition to any ISM band application where low signal strength or distance may be a complication.
-The circuit shown in the figure below is a high performance RF receiver system with 10dB of gain, optimized for operation at a center frequency of 5.8GHz. By keeping the input unfiltered and using a filter to attenuates out-of-band interferers at the amplifier output, the entire system noise figure performance is at 2dB.  +
-The circuit includes a high speed overpower cutoff that protects sensitive downstream equipment connected to the receiver system. ​ The receiver system also automatically turns back on when once the RF power input is now within the acceptable range.+
  
-The RF inputs and outputs are standard SMA connectors, and the entire design is powered from a single micro USB connector.+The circuit is a high performance RF receiver system with +23 dB of gain, optimized for operation at a center frequency of 5.8 GHz. The input is unfiltered, maintaining a noise figure of 2 dB, while a bandpass filter at the output attenuates out-of-band interferers. 
 + 
 +The circuit includes a high speed overpower detector and switch that protects sensitive downstream equipment connected to the receiver system. The receiver system also automatically returns to normal operation when the RF power level drops within the acceptable range. ​The RF inputs and outputs are standard SMA connectors, and the entire design is powered from a single micro USB connector.
  
 {{ :​resources:​eval:​user-guides:​circuits-from-the-lab:​cn0534:​cn0534_system_block_diagram_simplified_v3_.png?​900 |}} {{ :​resources:​eval:​user-guides:​circuits-from-the-lab:​cn0534:​cn0534_system_block_diagram_simplified_v3_.png?​900 |}}
-{{ :​resources:​eval:​user-guides:​circuits-from-the-lab:​cn0534:​cn0534_top_view.png?500 |}}+{{ :​resources:​eval:​user-guides:​circuits-from-the-lab:​cn0534:​eval-cn0534-ebzangle.jpg?400 |}} 
  
 ===== General Setup ===== ===== General Setup =====
Line 122: Line 123:
 === Auto Shutdown Operation === === Auto Shutdown Operation ===
  
-The plot is as shown below with transmit power set to -10 dBFS producing a 40.25 dB RSSI  RF power input reading ​providing ​a 20 dB attenuation in reference with the loop back test operation:+The plot is as shown below with transmit power set to -10 dBFS producing a 40.25 dB RSSI  RF power input reading ​and showing ​a 20 dB attenuation in reference with the loop back test operation:
 {{ :​resources:​eval:​user-guides:​circuits-from-the-lab:​cn0534:​at_n10_rfoutput_scale.png?​600 |}} {{ :​resources:​eval:​user-guides:​circuits-from-the-lab:​cn0534:​at_n10_rfoutput_scale.png?​600 |}}
  
resources/eval/user-guides/circuits-from-the-lab/cn0534.txt · Last modified: 30 Nov 2021 19:49 by Brandon Bushey