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Old 5th December 2003, 07:03 AM   #1
diyAudio Member
Join Date: Sep 2002
Location: Malaysia
Default passive i/v conversion with tda1545

hi all

how should i use the tda1545?

i tried passive i/v with 1.5kohm resistor from analog l/r output to "vref" but it didn't work.

"vref" is the middle point of a voltage divider with one 11kohm to iref pin and the other 11kohm wired to 5v. and there is a 0.47uf cap wired from "vref" to gnd.

i haven't tried active i/v yet but will do soon but what will be the suggested i/v resistors? thinking along the lines of 1kohm, 1.5kohm and 2kohm.

anyone tried the above?


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Old 5th December 2003, 05:05 PM   #2
Pedja is offline Pedja  Serbia
diyAudio Member
Join Date: Jun 2002
Location: Belgrade
Originally posted by DonJuan
i tried passive i/v with 1.5kohm resistor from analog l/r output to "vref" but it didn't work.
Hi Don Juan,

Why to Vref and not to ground?

Btw, any info where to find TDA1545 (I assume it is A)?

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