<![CDATA[ChipMusic.org - Is this amplifier proper for my superhet radio receiver design?]]> 2017-10-26T15:21:06Z PunBB https://chipmusic.org/forums/topic/20158/is-this-amplifier-proper-for-my-superhet-radio-receiver-design/ <![CDATA[Re: Is this amplifier proper for my superhet radio receiver design?]]> not really the right forum for this question, but i'll leave it up on the off chance someone here can help

]]> https://chipmusic.org/e.s.c. 2017-10-26T15:21:06Z https://chipmusic.org/forums/post/254483/#p254483 <![CDATA[Is this amplifier proper for my superhet radio receiver design?]]> I'm trying to design a superhet radio receiver that can be built up in sections, and now I met some problems.

The receiver is based on the AN602 double-balanced mixer IC, with the big brother of the ZN414 (the 10-transistor radio chip), the ZN416, employed as an IF amplifier, coupled with a standard LM386 audio stage . Power-supply requirements are 9 to 12 volts dc at 10 mA average (up to 30 mA at full volume).

*As the LM386(datasheet for reference:http://www.kynix.com/uploadfiles/pdf2286/LM386M-1.pdf) is almost a standard chip for audio use, the only caution revolves around the 10-mF gain-setting capacitor. So what should I do if my LM386 seems a bit too lively?

*Also, do you know how to enable the reception of SSB signals? Do I need other designs?

]]> https://chipmusic.org/Channald 2017-10-26T06:38:02Z https://chipmusic.org/forums/post/254466/#p254466