AGC amplifier and filter design

I want a schematic and working logic of a signal interface which will take the signal from the coupling unit connected to a cable. The output of the design will be TTL which will be input to a microprocessor.

- the carrier frequency band will be between 95-140kHz - FSK or ASK modulation will be used

- there must be a filter rejecting out of band signals, strong enough to attenuate (telephone cables will be used as transmission medium, noise will be from up and lower than the carrier frequancy, so the filter must be BAND-PASS)

- the gain of the amplifier must be ~60dB or more

- output will be clear TTL (like a schmitt trigger output)

- only schematics and the working explanation wanted, I will accept the project after testing it. If it will work without problems I want to give a bonus.

- must use common and low cost components

- total number of components is important

- space of the design is important

- if there is (a) low cost common IC that can accomplish these targets with some external components it is better

Please give details proves that you can safely design this project.

## Deliverables

1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.

2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables):

a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment.

b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request.

3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).

## Platform

- Electronic circuit hardware design

- Analog design

- communication circuit

Habilidades: Eletrônica, Engenharia, MySQL, PHP, Arquitetura de software, Teste de Software

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Acerca do Empregador:
( 0 comentários ) Turkey

ID do Projeto: #3351100

1 freelancer está oferecendo em média $85 para esse trabalho


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$85 USD in 10 dias
(3 Comentários)