How can I created or found Audio-frequency amplifier ?

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rio7

Joined Jan 1, 2015
40
Good morning,

How can I created or found Audio-frequency amplifier ? I need schema ( better in NI Multisim ) who made with ( I don't know in english ) 4-steps/stage.

Maybe someone have this schema example, NI Multisim or on photo ? I don't really care where it is from.
 

ian field

Joined Oct 27, 2012
6,539
Good morning,

How can I created or found Audio-frequency amplifier ? I need schema ( better in NI Multisim ) who made with ( I don't know in english ) 4-steps/stage.

Maybe someone have this schema example, NI Multisim or on photo ? I don't really care where it is from.
According to an author in one magazine, one of the UK pound shops had MP3 amplifiers for only £1, I never found any myself but various discount stores have similar items at slightly higher price - usually based on the likes of TDA2822 or LM386 etc, so some idea of typical specs can be got from the data sheets.

A very simple amp chip to use is the TDA7052, the A suffix part has a DC volume control - its a BTL amplifier, so there are restrictions on output power if you need a common connection such as on a pair of ear-buds.
 

Thread Starter

rio7

Joined Jan 1, 2015
40
According to an author in one magazine, one of the UK pound shops had MP3 amplifiers for only £1, I never found any myself but various discount stores have similar items at slightly higher price - usually based on the likes of TDA2822 or LM386 etc, so some idea of typical specs can be got from the data sheets.

A very simple amp chip to use is the TDA7052, the A suffix part has a DC volume control - its a BTL amplifier, so there are restrictions on output power if you need a common connection such as on a pair of ear-buds.
But how to created what type audio frequency amplifier ?
 
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