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Old 16th July 2011, 07:47 PM   #1
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Default PCM5102, 2VRMS ground centered direct output with two digital filters

TI announce the PCM5102 a DAC chip integrating two different digital filters, a direct path 2V RMS ground centered output.

PCM5102 Audio Stereo DAC (29 Apr 2011)

Datasheet: PCM5102

Few characteristics:
- Hardware control,
- Full scale output 2.1V RMS (Ground center),
- No DC blocking capacitor required,
- Sampling frequency 8KHz to 384kHz,
- Accepts 16, 24 and 32 bit audio data,
- Classical FIR Brickwall filter and Apodising IIR filter
- Integrated high-performance audio PLL to generate SCK internally


This chip seems ideal for simple DAC.
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Old 16th July 2011, 07:54 PM   #2
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Default PCM5102 interpolation filters

Graphical response of two interpolation filters.
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File Type: gif PCM5102 interpolation filters.gif (23.1 KB, 1792 views)
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Old 16th July 2011, 07:54 PM   #3
EUVL is offline EUVL  Europe
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You're the first to post :

PCM 5102 DAC


Patrick
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Old 16th July 2011, 07:58 PM   #4
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hi EUVL,
Quote:
Originally Posted by EUVL View Post
You're the first to post: PCM 5102 DAC

Patrick
No the second one

Quote:
Originally Posted by ionutzxpo View Post
Hello guys ,i just received from TI 5 PCM5102...
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Old 16th July 2011, 11:54 PM   #5
EUVL is offline EUVL  Europe
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I meant you were NOT the first.
Why not merge the two threads ?

Patrick
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Old 17th July 2011, 06:26 AM   #6
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Hi Patrick,
Quote:
Originally Posted by EUVL View Post
I meant you were NOT the first.
Why not merge the two threads ?

Patrick
ionutzxpo want help for its personal realization. It is not really an open thread to speak about PCM5102's interesting characteristics.

I have some doubts that many people were interested by a thread named 'PCM5102'. Except if they already knew this circuit.
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Old 17th July 2011, 07:32 AM   #7
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Hi guys,I am a beginner in digital audio conversion and i don't know how to connect the PCM2707 to PCM 5102 to make a simple functional USB DAC with much much better performance than any other integrated sound solution (I use computer for music playback)
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Old 24th July 2011, 07:08 PM   #8
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Default PCM5102 upsampling method

The PCM5102 upsample audio data to 352.8/384KHz.
- 44.1KHz, 88.2KHz, 176.4KHz are upsampled to 352.8KHz,
- 48KHz, 96KHz, 192KHz are upsampled to 384KHz.
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File Type: gif PCM5102 internal upsampling.gif (5.9 KB, 1644 views)
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Old 25th July 2011, 01:37 AM   #9
col_s is offline col_s  Australia
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i got my sample up and running last night. It's sort of similar (but better i think) to the wolfson WM8524 used in the GrubDAC.

It is a very easy DAC to implement and interface to. It needs very few components to make it work, and only needs a single 3.3V supply. I've only listened to it briefly so far. I'm thinking only a tiny PCB would be needed to piggyback onto my MiniDSP to replace the built-in DACs.
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Old 25th July 2011, 01:48 AM   #10
col_s is offline col_s  Australia
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from reading the PCM5102 evaluation board datasheet, it seems that there may be a PCM5122 chip as well in the future, which has software control and digital volume control.
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