Zossen Posted May 28, 2008 Report Share Posted May 28, 2008 http://www.st.com/stonline/products/literature/ds/4291/tda7439.pdfInput multiplexer– four stereo inputs– selectable input gain for optimal adaptationto different sources! Single stereo output! Treble, mid-range and bass control in 2-dBsteps! Volume control in 1-dB steps! Two speaker attenuators:– two independent speaker controls in 1-dBsteps for balance facility– independent mute function! All functions are programmable via serial busfor the Midimixer istead or to help TI PGA 43**/23** ??? Control possible with Mios ? Quote Link to comment Share on other sites More sharing options...
stryd_one Posted May 29, 2008 Report Share Posted May 29, 2008 Ooooh there's external filtering for the three frequency bands. Tasteful. Unfortunately the crossover frequencies are fixed :(Can you actually find the chips available as a stocked item? Quote Link to comment Share on other sites More sharing options...
Zossen Posted May 29, 2008 Author Report Share Posted May 29, 2008 ;D Jes i have in front of me, see attachment ; Digital in ; Cinch in ; Tape ;CD 1 cabel to AMP ; 1 cable to I2CAnd the Chips are here for less than 3€ Stock Reported Date** AMERICA DIGIKEY 0 29-May-2008ASIA/PACIFIC DIGIKEY 0 29-May-2008EUROPE SPOERLE 272 28-May-2008http://www.spoerle.com/web_ctrl/0,5747,,00.html?application=SEARCH&event=1000&search_token=TDA7439&search_criteria=match_begins_with&match_in_stock_only=NO&rows_to_display=10&super_neda=60552&start_index=0&search_type=click_through&catID=&partDescription=&SupplierNeda=&full_domain_name=www.spoerle.com&domain=spoerleor here http://www.cdlens.com/?item=6913KIF_1828.JPG Quote Link to comment Share on other sites More sharing options...
stryd_one Posted May 29, 2008 Report Share Posted May 29, 2008 The topic was successfully added to your bookmarks!Which means: This is interesting but I am personally way too busy right now :(Anyone?PS Zossen what is that board? Just out of curiosity... Quote Link to comment Share on other sites More sharing options...
Zossen Posted May 29, 2008 Author Report Share Posted May 29, 2008 thats a board from JVC-Musik-Box (pic3) , 6 years old ;Tape and Cd-player broken , so now i have an 2x70W+2x20W AMP with the Controlboard with AD7439 ; 4 Alps Encoders with Knops , 30 switches and a new projekt . When the equi would be controlled by a Pic then i have a Digital controlled Amp with 4 Channel In. But i think that this equi funktion in Stereo could be usefull for others ,too. if somebody interested i can copy the boardlayout to eagle or NIThe Encoders and Knops for are now the first part (FX-Control ; 6 Buttons ;3 Encoder ; 2 Pots , 8 Led's) of my midbox. Pic 4 )encoder5.JPGKIF_1809.JPGKIF_1833.JPG Quote Link to comment Share on other sites More sharing options...
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