Hi 🙂
I've a bit of experience with Altium Designer, C/PP, general MCU stuff, things like I2C and so on. I'd like to have a crack at making a decent DAC to level up my elec skills. I'm hoping this community could be of help.
I'm at the first hurdle, finding accurate footprints/models to avoid naming 128pins or more. I'm going with the AK4499 to start. Also noteworthy, I'm doing a prototype using TQFP or similar SMD packages to keep things simpler. My first query is, where's all the chip info? I've read the datasheet which is pretty light, very little examples of circuit diagrams/schematics which is a bit surprising but it's at least not the es9038pro hiding behind an NDA. (Great dac though, no hate here) I'm also curious about what the numerous identically named pins are doing like that, no doubt there's method there that I'm missing but either way it's always nice to have clearly labled gpio/input/output/control(i2c etc)/power.
I'm starting to work up the I/V converter section according to the data sheet and I find things a little confusing (on the aforementioned points).
If anyone has thoughts, ideas, examples, anything to kick start a discussion on the topic that'd be great. Even if it doesn't address the points I've made, still all learning is good learning.
Cheers
TIA
I've a bit of experience with Altium Designer, C/PP, general MCU stuff, things like I2C and so on. I'd like to have a crack at making a decent DAC to level up my elec skills. I'm hoping this community could be of help.
I'm at the first hurdle, finding accurate footprints/models to avoid naming 128pins or more. I'm going with the AK4499 to start. Also noteworthy, I'm doing a prototype using TQFP or similar SMD packages to keep things simpler. My first query is, where's all the chip info? I've read the datasheet which is pretty light, very little examples of circuit diagrams/schematics which is a bit surprising but it's at least not the es9038pro hiding behind an NDA. (Great dac though, no hate here) I'm also curious about what the numerous identically named pins are doing like that, no doubt there's method there that I'm missing but either way it's always nice to have clearly labled gpio/input/output/control(i2c etc)/power.
I'm starting to work up the I/V converter section according to the data sheet and I find things a little confusing (on the aforementioned points).
If anyone has thoughts, ideas, examples, anything to kick start a discussion on the topic that'd be great. Even if it doesn't address the points I've made, still all learning is good learning.
Cheers
TIA
The AK4499 evaluation board comes with a manual that includes a schematic. Quite a bit can be learned from that.
Regarding the issue of getting AK4499 to sound anything close to what it is capable of is another matter. Great care must be taken in design and layout. A 4-layer PCB would be the absolute minimum.
By the way, you are not the first person with the idea to learn about building dacs starting with AK4499. No one here has published a completed and tested design yet.
Regarding the issue of getting AK4499 to sound anything close to what it is capable of is another matter. Great care must be taken in design and layout. A 4-layer PCB would be the absolute minimum.
By the way, you are not the first person with the idea to learn about building dacs starting with AK4499. No one here has published a completed and tested design yet.
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