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Old 3rd September 2005, 06:12 PM   #1
ash_dac is offline ash_dac  United Kingdom
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Question RC filter on TDA1543 inputs

Hi,

Noticed on most of my commercial cdp's / dacs (tda1541a, tda1545a) there are input resistors on the I2S pins. Also I have an article that mentions using 3 20ohm resistors on the I2S inputs on tda1545. The links listed below also mention the use of a capacitor to form a RC filter on the I2S inputs.

Has anyone tried adding a RC filter on each of the TDA1543 inputs?



http://www.diyaudio.com/forums/showt...756#post370756


http://www.diyaudio.com/forums/showt...103#post375103


+ any recommendations for introductory electronics text ?

I'm thinking of ordering "The Art of Electronics" (Paul Horowitz and Winfield Hill) because at the moment i'm having to learn stuff adhoc (using google) when reading articles / posts because I have no foundation in electronics.




Kind regards,


Ashley
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Old 3rd September 2005, 06:58 PM   #2
bitrate is offline bitrate  Poland
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"High-speed digital design.A Handbook of Black Magic"(Howard W. Johnson and Martin Graham )

Everything You always wanted to know about high speed digital design but were afraid to ask
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Old 3rd September 2005, 08:42 PM   #3
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Quote:
Originally posted by ash_dac
+ any recommendations for introductory electronics text ?

I'm thinking of ordering "The Art of Electronics" (Paul Horowitz and Winfield Hill)
Quote:
Originally posted by bitrate
"High-speed digital design.A Handbook of Black Magic"(Howard W. Johnson and Martin Graham )

Everything You always wanted to know about high speed digital design but were afraid to ask

It is quite a leap from AOE to High Speed Digital Design. High Speed Digital Design is anything but an introductory text and is highly specialised. Want to know how to build a barrel shifter or a clock divider? Look elsewhere. Want to make said barrel shifter or clock divider run at 500Mhz? High Speed Digital Design is the book for you. AOE is much more general and would be an ideal introductory text.
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Old 3rd September 2005, 11:48 PM   #4
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Johnson's book is not for the noob..........plus, it isn't cheap. Geared towards people who do high speed stuff all day long, so they can justify the cost.

Jocko
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Old 4th September 2005, 07:01 PM   #5
gmarsh is offline gmarsh  Canada
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Quote:
Originally posted by Jocko Homo
Johnson's book is not for the noob..........plus, it isn't cheap. Geared towards people who do high speed stuff all day long, so they can justify the cost.

Jocko
Got my copy used off amazon.com for $50.

It's not for the 'noob' who doesn't know how electric/magnetic fields interact or how transmission lines interact, but once you get that part down then the book makes lots of sense. Everything is highly explained, and there's very little actual math in the book.
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