Difference between pages "PE4302 RF Attenuator" and "ODAS-PSOC5"

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== Features ==
 
== Features ==
 
* This is a [http://www.west-l.com/uploads/tdpdf/yqperegrine_hf-switch-pe4302_en.pdf PE4302] numerical control RF attenuator module.
 
* The parallel immediate mode is simple and easy to use.
 
* Bandwidth is wide and can be 1MHz to 4GHz.
 
* Program control gain attenuation range is from 0 to 31.5DB.
 
* The module supports parallel port and serial port mode as well as power on state selection function.
 
 
=== Specifications ===
 
 
* Power Supply Voltage
 
** 2.7-3.3 VDC - 3V typical
 
** Typical current 5mA
 
* Program control gain attenuation range
 
** 0~31.5DB
 
** 10K pull down resistors to ground
 
** Digital Input High 0.7xVDD in V = 2.1V
 
** Using 1.5K pullup with 18K pulldown = 2.6V
 
* Stepping: 0.5DB
 
* Input/Output Impedance
 
** 50 ohm
 
* Bandwidth
 
** 1MHz~4GHz
 
** Attenuation value will differ under different frequency
 
* Max Input power (50Ω) +30 dBm (1W = 7.1V RMS)
 
* Connectors
 
** SMA-female
 
 
== Control Board ==
 
 
* A lot of designs using an Arduino/OLEDS, etc to control the card
 
** Unnecessary
 
*** Could add noise from OLED
 
*** Doesn't need to switch too often
 
* Use [[SWLEDX8]] to control attenuation selection
 
* Use center 6 switches
 
* Mount in small extruded metal project box
 
* [[Mini360 Adapter Board]] for broad input voltage range
 
** Concern over EMI?
 
 
[[file:SWLEDX8-I2C-P118-720px.jpg]]
 
 
== References ==
 
 
* [https://kv4qb.blogspot.com/2019/04/63-db-step-attenuator.html DuWayne's Arduino based attenuator]
 
** Hackaday project page
 
* [https://www.psemi.com/products/family/rf-attenuators Peregrine Semiconductor's page] - Chip maker
 
* [https://github.com/tswfi/PE4302_Attenuator PE4302 tswfi] - Simple attenuator built with PE4302 and Arduino "pro micro".
 
** [https://github.com/tswfi/PE43xx PE43xx Arduino Library]
 

Revision as of 12:52, 15 March 2022

ODAS-PSOC5-P682-X4-720px.jpg

Features