AudioNote DAC 4 SIG.

nafunga · 9th October 2005, 04:19 PM

Hi,
Anyone know why the AN DAC 4 SIG circuit (30/1/95) shows no I/V conversion resistor on the DAC transformer primary connection? The DAC IC is a PCM63P-X. Every other transformer schematic Iv'e seen uses a resistor for conversion, usually 25 to 470 Ohms. Any ideas please?

Regards,

David.

hagtech · 10th October 2005, 05:19 AM

Why can't you just put the resistor in the secondary?

jh

analog_sa · 10th October 2005, 07:44 AM

The schematic only shows square boxes for 'interface' and 'filter' so the resistor may well be inside one of those.

9th October 2005, 04:19 PM	#1
nafunga diyAudio Member Join Date: Jul 2005 Location: Whitstable , Kent. UK	AudioNote DAC 4 SIG. Hi, Anyone know why the AN DAC 4 SIG circuit (30/1/95) shows no I/V conversion resistor on the DAC transformer primary connection? The DAC IC is a PCM63P-X. Every other transformer schematic Iv'e seen uses a resistor for conversion, usually 25 to 470 Ohms. Any ideas please? Regards, David.

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10th October 2005, 05:19 AM	#2
hagtech diyAudio Member Join Date: Mar 2002 Location: Hawaii	Why can't you just put the resistor in the secondary? jh

10th October 2005, 07:44 AM	#3
analog_sa diyAudio Member Join Date: Aug 2002 Location: Sofia	The schematic only shows square boxes for 'interface' and 'filter' so the resistor may well be inside one of those.

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