The package is a QFN package (look it up, that's what google is for!). This is extremely small, cannotbe soldered by hand (except by some crazily skilled folks!), requires a PCB to be made with solder-mask,then solder paste applied with a stencil, then the device accurately placed on the paste and the boardheated in an oven or with a hot-air rework station.In otherwords you will require it on a break-out board, unless you have good surface-mount solderingskills.But its a 3V only chip, so if you are using a 5V Arduino you'd be better off with a 5V compatible chipso you don't need level-shifters. Alternatively use a 3.3V Arduino to talk to it.
The video showa a breakout board purchased from ebay - so you don't need to mount the chip .It provides 0..31.5dB attenuation in 64 0.5dB steps .It requires a 3-v logic interface, so you'd either need a 3.3v arduino - eg a due , or a simple 5-3.3v conversion interface to use with a 5v arduino. This can be done with a few resistors.Note : this device does not alter frequencies.Allan
The pe4312 seems to be a slightly higher performance version of the PE4302.It's range is 1MHz .. 4GHz.It requires a 1.8 to 3.6v logic drive.It does NOT alter the frequency, only it's amplitude.So how else could we help you?Allan
I have one more questionin pe4302 breakout board written that the range is: "DC-4GHz"what does "DC" mean?
I am worried about your lack of knowledge of the _most_ _most_ basic terminology - pleaseexplain exactly what you are trying to do, ie what end result you want to achieve, I havea worry that you are completely confused about frequency, amplitude, signal processing ingeneral. Don't say _how_ you think the result should be achieved, say _what_ result you want.