Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
I'm trying to open schematics from a library made on "cadence 6" on "cadence 5141" and i get this error
"*WARNING* ddMapGetFileViewType: You are trying to run a CDB executable on an OA library file 'sch.oa'. The file is in library '******' in cell '******' in view 'schematic'. You must run an...
to get the mixer conversion gain I've tried the single tone test and pss and evaluated the gain ... now i want to evaluate it using PSS and PAC using some tutorials but I've got weird results ... so do you recommend a good tutorial for this simulation
I'm using Cadence with tsmc 130nm technology file ... and it's my first time ... now I'm facing a weird problem i have built a very simple circuit (an NMOS with its drain connected to the gate in series with an ideal current source between VDD and GND) I'm trying to apply the famous saturation...
look .. I'm in the beginning of my design (+ It's my first time) and I need a good reference book explaining different mixer design and design issues ... to select the appropriate design for my application.
i'am designing an RF system and i've obtained the overall system requirements from the standard (e.g the overall wanted gain) now i need to distribute that gain to the system blocks but i need to know "based on what !!" (or what is the efficient method used in distributing it)...
after obtaining the overall system specifications (Gain , NF ,IIP3 , ...) now i want to start distributing them (from overall specs. to block specs.)
what is the best method for doing that ?? ... or could you please suggest a good reference.
thanks in advance
I'm designing an RF receiver and after choosing the architecture and obtaining the system specifications I'm going into the phase of block modeling and system level design ... do you know what are the best tutorials that can help in this phase.?
1- When designing a zero if receiver will one mixer be enough for my design .. or should i use two I&Q mixers?
2- if two, there should be a phase shift by 90 between the LO signals feeding them... what are the other design differences between them?
3- to avoid 2nd order distortion i will use...
So should i use one or two mixers in Zero-if receivers ?!! ... and if two,what are the differences in design between them ?!!
(i think a phase shift of 90 degrees between the LO signals feeding them is an important difference .. i'm asking for other differences )
i think this method can be done only after having a system model because the equation variables values can only be obtained from simulation ( measurements phase) .. but now i'm obtaining the system specifications from the standard and this method will not work with me .. !!