What is difference on TDA1545 and TDA1545A?

tkchoi · 28th October 2003, 01:08 PM

I ordered a few TDA1545A DAC chips. But, I received the parts without "A". Do anybody know what is the difference between TDA1545 and TDA1545A?

P.S. The TDA1545 DAC chips I received are in DIP package

Best regards,
T K Choi

Elso Kwak · 29th October 2003, 10:47 AM

Quote:

Originally posted by tkchoi
I ordered a few TDA1545A DAC chips. But, I received the parts without "A". Do anybody know what is the difference between TDA1545 and TDA1545A?

P.S. The TDA1545 DAC chips I received are in DIP package

Best regards,
T K Choi

Hi, -Skating on thin ice here-

Philips datasheet only mentions TDA1545A
A version is for most of Japanese format. Maybe without A for I2S????

I might be interested buying the chips from you.

tkchoi · 29th October 2003, 11:11 AM

Hello Elso,

The TDA1545, I have, are worked on Japan format, but not Philips I2S. I tried to build the circuit just following Philips TDA1545A datasheet. It sounded vague with very soft bass. So, I wonder if there is difference between TDA1545 and TDA1545A. And, may need different circuit configuration from TDA1545A.

Best regards,
T K Choi

Netlist · 29th October 2003, 11:20 AM

According to my data:
TDA1545: Stereo, dig. Audio, continuous calibr.
TDA1545A: =TDA 1545: verbessert/improved

It however doesn’t say what's improved

From Audioasylum:

Quote:

The TDA1545 suffers from variations in series production and AFAIK they are still being "graded", it is worth getting the better grades.

/Hugo

28th October 2003, 01:08 PM	#1
tkchoi diyAudio Member Join Date: May 2003 Location: Hong Kong	What is difference on TDA1545 and TDA1545A? I ordered a few TDA1545A DAC chips. But, I received the parts without "A". Do anybody know what is the difference between TDA1545 and TDA1545A? P.S. The TDA1545 DAC chips I received are in DIP package Best regards, T K Choi

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29th October 2003, 11:11 AM	#3
tkchoi diyAudio Member Join Date: May 2003 Location: Hong Kong	Hello Elso, The TDA1545, I have, are worked on Japan format, but not Philips I2S. I tried to build the circuit just following Philips TDA1545A datasheet. It sounded vague with very soft bass. So, I wonder if there is difference between TDA1545 and TDA1545A. And, may need different circuit configuration from TDA1545A. Best regards, T K Choi

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