[hpsdr] BF stage

Andreas Troschka smtp01 at gmx.net
Mon Nov 12 07:25:37 PST 2007


Andreas Troschka wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
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> For those interested in implementing a BF stage to connect the HPSDR to speakers, a headphone or/and analog Line-out, e.g. in a complete self contained radio, Cirrus-Logic produces a nice set of D/A converters with mixer, tone regulators and BF amplifiers on chip.
> 
> http://www.cirrus.com/en/pubs/brochure/portable_audio_solutions_2007_EN.pdf
> 
> Links you to a brochure describing the various BF stage chips.
> 
> This chips contain all the needed BF stage reducing circuitry and PCB complexity to a real minimum and enabling to control this stage by software.
> 
> vy 73s de - Andreas
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As probably you have noted, in my precedent message I've used the acronym "BF" instead of AF, for Audio Frequency.

BF is the acronym for the same in italian, "Bassa Frequenza". So, please, read BF as AF.

I apology for this inattention.

vy 73s de Andreas - ik2wqi



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