Biasing of tda1543

analog_sa · 12th January 2005, 07:22 AM

After reading the datasheet and going through a few experiments i have several questions

1. Does it make any sense to replace Rref with a current source?

2. What is the effect of exceeding the ac compliance at output on distortion?

3. It seems various 'tuned by ear' values for passive i/v resistor abound - between 1 and 3k. The 1k5/3k combo seems to be lauded for great dynamics and kick. If i am not way off base this combo will result severe clipping at max output. Does max modulation occur in real life?

thanks

aht · 13th January 2005, 06:02 AM

Ask me if you have some FAQ

analog_sa · 13th January 2005, 06:08 AM

Quote:

3. It seems various 'tuned by ear' values for passive i/v resistor abound - between 1 and 3k. The 1k5/3k combo seems to be lauded for great dynamics and kick. If i am not way off base this combo will result severe clipping at max output. Does max modulation occur in real life?

Hmmm, i tried several values last night and also prefered the 1k5/3k. Do most of us like distortion?

rfbrw · 13th January 2005, 12:32 PM

Your design has two clock domains with no proper synchronization between them.

12th January 2005, 07:22 AM	#1
analog_sa diyAudio Member Join Date: Aug 2002 Location: Sofia	Biasing of tda1543 After reading the datasheet and going through a few experiments i have several questions 1. Does it make any sense to replace Rref with a current source? 2. What is the effect of exceeding the ac compliance at output on distortion? 3. It seems various 'tuned by ear' values for passive i/v resistor abound - between 1 and 3k. The 1k5/3k combo seems to be lauded for great dynamics and kick. If i am not way off base this combo will result severe clipping at max output. Does max modulation occur in real life? thanks

13th January 2005, 12:32 PM	#4
rfbrw diyAudio Member Join Date: Oct 2001 Location: .	Re: My 1543 SCH Your design has two clock domains with no proper synchronization between them.

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