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francolargo  
#1 Posted : Tuesday, November 10, 2015 5:51:35 PM(UTC)
francolargo

Rank: Member

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Joined: 4/21/2007(UTC)
Posts: 59
Location: Minnesota
2 Questions:
How many taps or volume levels does the firmware I2C master implement in the ES9018?
Does the firmware controller draw any current through the external potentiometer?

Reason: I am wondering if it is feasible or inadvisable to control volume on multiple BIIIse's using one I2C-controlled multi-channel digital pot.

Thanks in advance!

Frank
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Brian Donegan  
#2 Posted : Tuesday, November 10, 2015 6:55:30 PM(UTC)
Brian Donegan

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Joined: 10/24/2006(UTC)
Posts: 2,868
Location: Massachusetts, USA

Thanks: 2 times
Was thanked: 141 time(s) in 134 post(s)

1: 0 to -127dB in 0.5dB steps (255 steps)

2: 3.3V/10K = 0.00033A
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francolargo  
#3 Posted : Tuesday, November 10, 2015 9:17:32 PM(UTC)
francolargo

Rank: Member

Groups: Member
Joined: 4/21/2007(UTC)
Posts: 59
Location: Minnesota
Thanks so much Brian!

Here is more on the project at hand.

http://www.diyaudio.com/...liances.html#post4513045

I am the first to admit that without the kind support of the DIY community, I'd be screwed! ;-) :-P
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