Audio communications microphone preamp/compressor box with PCB - repost

$250-750 USD

Anuluar

Postuar

almost 11 years ago

$250-750 USD

Paguhet në dorëzim

This is for those with knowledge of radio and communications systems out there : I would like to build a small board for use with radio communications that would provide a small 3 channel mixer to allow using a condenser microphone with XLR connector. This will require a 48 vdc phantom supply with switchable on/offI would like to use the Signetics NE570 compandor to give me good compression - as in a broadcast station. I would like to have an LED VU display - LM3915 or equivelent, to be able to calibrate to avoid overrmodulation. There will be four inputs: condenser, dynamic/headset, OEM microphone. There should be two outputs - USB interface for audio out using CM??? USB-Audio IC. All powered from 12 vdc wall wart. Milestone 1 - meet and discuss the project prior to making the final [login to view URL] to work with someone to arrive at a schematic (Milestone 2) and then have that schematic tested (I would order a PCB based upon the files you provide) Allow for 2 iterations of changes to schematic/PCB design.

PCB Layout

ID e Projektit: 4551003

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3 propozime

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Aktive 11 yrs ago

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3 profesionistët e pavarur ofrojnë mesatarisht $605 USD oferta për këtë punë

@carelle

Hello Sir. I can do what you need with quality and reliability. Please read more about me and about my proposal at on the Private Messages box. Thanks for your time!

$412 USD në 10 ditë

4,9

(21 përshtypje)

5,9

@MIKY4227

Hi i can help you,see samples of works in portfolio

$526 USD në 10 ditë

4,6

(14 përshtypje)

4,9

@betaenergy

Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of hardware For each concept descriptions are as follows: Digital Motor Control: -3-phase induction motor vector control drive -Flux estimation algoritm generation -DSP(TMS320) implementation on motor drive -Low speed application -Torque and speed loop generation -Control algoritms Analog design -Low power distribution -Noissless special opamp based analog circuits -Analog filters -Orcad simulation of several circuits Electronic Design -RF transmitter and receiver -Bluetooh reader and transmitter -Magnetic reader Power Electronics -Implementation motor drive -AC/DC converter -DC-DC converter -Battery charger -Solar inverter -Renewable Energy simulations -Uninterruptle power supplies PCB design -Schematic design by Altium -PCB design by Altium -Power board design -SMPS board design Embedded system -PIC18,PIC24,PIC30 and dsPIC applications -Ardino -MSP430 -Atmel -DSP(Texas Instruments) -Renesas Matlab -Power Electronics simulation -Motor drive -Wind Energy -Solar Energy -Control applications Simulation of Hardware -Orcad Simulation(TI,National, Linear Tech, Maxim libraries) -LTI -National -Matlab Very important Note: References attached. Please look excel file to see projects which we made until now! Metin

$526 USD në 3 ditë