Simple I/V for TDA1541

[powerflux]

i've built the circuit, and when the volume on the cd is low, it sounds fine. but as soon as samples come above a certain level, they transform to a harsh 'click' or 'pop'. all initial adjustments have been done, but even when seriously offset (try and error-method), the behaviour doesn't change. both channels have the same problem

is hfe very important?

[robertor]

hi everybody.

i just bought the last lampucera DAC:

2010 NEW VERSION 24bit/192khz DAC Kit su eBay.it CD Players Recorders, Home Audio, Electronics

who use the opamp, in this case the NE5532, as the I/V conversion stage.

the schematic appear on the first post of this 3D can be used also to replace this type of opamps?

the third opamp you see is for the output and will be replaced by opa627 or audio-gd MOON.

thanks everyone.

rob

[SoNic_real_one]

You need DUAL OpAmps to replace those - 2xOPA627 need to be mounted on a brown-dog adaptor.
Personally I didn't want to complicate thinks. I liked the best the sound of LM4562.

[robertor]

ok, then nothing "discrete stage" replacing the opamp.
that will be a big problem.
will come back the opamp rolling.

[mootzeroni]

Originally Posted by SoNic_real_one

You need DUAL OpAmps to replace those - 2xOPA627 need to be mounted on a brown-dog adaptor.
Personally I didn't want to complicate thinks. I liked the best the sound of LM4562.

fyi, we were just discussing this DAC's opamps a few topics up on the forum:

New Small DIY Gigawork Dac? - diyAudio

I'm burning-in a Burson module in the output now, the other guy recommends LM4562's in the I/V. Those OPA Sun, Moon and Earth modules pique my interest as well...

[regal]

Originally Posted by robertor

ok, then nothing "discrete stage" replacing the opamp.
that will be a big problem.
will come back the opamp rolling.

See the Pass D1 for Sabre thread, thats the only discrete I/V stage I have seen that handles differential output DAC's.

[totohung]

hi, i want to know what part to choose for the CCS i-dac?