Tda1547 Dac

[JKoch]

Hi Klaus

I intend to modify my Philips CD950.
You wrote in Post #13: "First success was a complete removement of the filter OP chain – just the first OPA as buffer for the DAC internal i/u stage remained. A simple network of 400Ohm output resistor and 8,2nF cap filters passive the HF trash".

Where did you use the RC network or what resistor and cap you remove from original schematic and changed to 400Ohm and 8,2nF?

Thanks for any details

JKoch

 

[jockel77]

Hi there,

I´m looking for a cd-player with TDA1547 DAC chip inside to modify the output stage (bypass all opamps).

There are several lists in the net which list CD-Players with DAC-Chips (see: http://www.hifiworld.com.cn/read.php?tid=371&skinco=pangwa&t=1)

Here I found that Kenwood has built some Players with TDA1547: DP 7050, DP 7060). The TDA1547 is also called (DAC7).

My question is the following:
Is the (DAC7) just the same Chip as the other TDA1547 or is it a special version of TDA1547?

 

[aparatusonitus]

Is the (DAC7) just the same Chip as the other TDA1547 or is it a special version of TDA1547?

TDA1547 is usually call DAC7, but if I am not mistaking, Philips guys use to call combination of SAA7350 (doing only oversampling) + TDA1547 (doing conversion) DAC7.

 

[ll0ll]

Is the blue star tda1547 available anywhere?
The Marantz cd15 uses the blue star version. The blue star is somewhat like the S1/S2 versions of the tda1541.

 

[CFT]

TDA1547 vs PCM1704

How would you compare these two DAC chips? TDA1547 vs PCM1704? Any one has the experience????

Thanks!

 

[highfidelity]

T+A uses in the CD 1200R also 4x NE5532 and the TDA1547

 

[fraserh]

VRDS 10SE uses a 1547, i tested loads of outboard DACs with it and they all sounded different but not any better i would say. I finally settled on a NOS one, i think with a 1543 instead. I liked the 1547 a lot

 

[Telstar]

Hi there,

I´m looking for a cd-player with TDA1547 DAC chip inside to modify the output stage (bypass all opamps).

Get the Teac VRDS 10SE (will be 400-600 euro on ebay and audio markets).
One modder here does a discrete output stage and swear about this chip.

 

[Telstar]

VRDS 10SE uses a 1547, i tested loads of outboard DACs with it and they all sounded different but not any better i would say. I finally settled on a NOS one, i think with a 1543 instead. I liked the 1547 a lot

Care to make some names? I didnt try enough DACs as I wanted
Which one are you using now? Peter Daniel's?

 

[highfidelity]

Further CD-Player with TDA1547:

EMT 982 PROFESSIONAL TDA1547 (DAC7) CDM-9 Pro
PHILIPS CD950 TDA1547 – SAA7350 CDM-9/44
PHILIPS CD951 TDA1547 – SAA7350 – SAA7310 CDM-9/65