Let me introduce to you: YM2612
And it's clone: TA-07
These chips have different technology, but it still shows that the clone is made almost by copy-paste technique. For example, you may look at it here. So, very soon we can know almost all about YM2612 and it's clones. Feel free to use it as you wish. You can start to search peoples, which can read these photos, or learn it yourself.
Check this out!
So, this picture 24516x21770 pixels and 116MBytes. It's too big for FileDen, and all pichostings, so I placed it on filesharing service. Someone of you can rehost it to better place.
1. DAC is 8bit, not 9bit.
2. DAC seems to be one not only for 6 channels, but for left/right output too. But I don't get it: oscilloscope shows channel synchronization:
Perhaps they used the capacitance to store the current signal level. DAC place at upper right corner on picture. All analog pins can easily be traced to him.
The first step is to identify all the blocks in the picture. Interestingly, below the center at right side there are some matrixes, perhaps this is the operator unit and the calculation tables for the level of the envelope and sine. And they're seems 14-bit. On the left side above the middle is likely array of registers.
Learning, thinking and posting here.
PS Any part of picture can be recaptured with better quality. Source PSD file was 1,5GB. :3
And it's clone: TA-07
These chips have different technology, but it still shows that the clone is made almost by copy-paste technique. For example, you may look at it here. So, very soon we can know almost all about YM2612 and it's clones. Feel free to use it as you wish. You can start to search peoples, which can read these photos, or learn it yourself.
Check this out!
So, this picture 24516x21770 pixels and 116MBytes. It's too big for FileDen, and all pichostings, so I placed it on filesharing service. Someone of you can rehost it to better place.
1. DAC is 8bit, not 9bit.
2. DAC seems to be one not only for 6 channels, but for left/right output too. But I don't get it: oscilloscope shows channel synchronization:
Perhaps they used the capacitance to store the current signal level. DAC place at upper right corner on picture. All analog pins can easily be traced to him.
The first step is to identify all the blocks in the picture. Interestingly, below the center at right side there are some matrixes, perhaps this is the operator unit and the calculation tables for the level of the envelope and sine. And they're seems 14-bit. On the left side above the middle is likely array of registers.
Learning, thinking and posting here.
PS Any part of picture can be recaptured with better quality. Source PSD file was 1,5GB. :3