Teyleten Robot PCM5102 PCM5102A AUX Stereo Digital Audio DAC Decoder Board Module Player Voice Digital-to-Analog Converter IIS I2S for Arduino Raspberry Pi (3PCS)

I bought this PCM5102A breakout as part of an STM32H7 embedded audio DSP project, and it ended up being an excellent board for firmware bring-up and real-time audio development. I was using it with independent ADC receive and DAC transmit buses on the STM32, and this module made it very easy to isolate and validate the DAC side of the system during development. Once the I2S framing and clocks were configured correctly, it was stable and reliable at 48 kHz / 24-bit operation. The output quality was more than good enough for real-time DSP testing, latency evaluation, vocal effects development, and general embedded audio experimentation. What I appreciated most is that this board removed uncertainty from the hardware side so I could focus on DSP architecture and firmware behavior instead of chasing analog problems. It is a fantastic low-risk choice for STM32, ESP32, Raspberry Pi, FPGA, or other embedded audio projects where you want to validate your design before committing to expensive custom converter hardware. Documentation varies a bit between sellers, so definitely verify your I2S settings during bring-up, but overall this was a very solid little module and I would absolutely buy it again for future embedded audio work.

It worked for me with basic sound from a FPGA though I am not an audiophile and can't comment much about the sound quality except that it's good enough for me. Some technical info follows. The is marked as Burr-Brown PCM5102A. The four jumpers 1, 2, 3, 4, at the bottom allows to connect FLT, DEMP, XSMT and FMT, to ground or vdd,. These four signals are also connected to the pads 1, 2, 3, 4, an the default is L, L, H, L. The four digital inputs SCK, BCK, DIN, and LCK, are connected via 220 ohm serial resistors to the IC, and the solder jumper new the SCK pad can be shorted if you don't use SCK (that's what I did, using the IC's PLL). There are two +3.3V LDOs that are fed from the VIN pad. One goes to AVDD and the other goes to CPVDD and DVDD. If you connect VIN to 3.3V they are almost like shorts and pass on the 3.3V. I connected VIN to 5V to have actual regulation and noise filtering on the board. The digital input are still at 0-3.3V level due to the DVDD regulator. The two outputs (on the jack and on the L and R pads) are connected through 470 ohms resistors. I replaced them with 1.5K to reduce the sound level with the headset I use (35 ohms per side). Overall it's a well designed board and I am happy with it.

works great, used for a synthesizer

Sounds fantastic! Hi-Fi quality from a rasperry pi

I purchased these for my Raspberry Pi's. Very easy to connect and come with wire for hookup. DOES require 5v to work properly. Sound quality good and they appear well built. Great for those DIY projects that require sound using SPI connection. You can plug in earphones or wire it to larger jack's..

I support a small dance school as their techie and they had been wrestling with a constant fallout of AUX cables to feed the music systems in the classrooms. They were going through two to four 1/8" AUX to RCA cables/iPhone to AUX cables per month. Cheap or expensive cables really didn't matter, except for how much it cost for the month. These boards plus an ESP32 plus a wall wart cost less than the monthly budget for disposable AUX cables. I hooked one of these up to one of the stereos and they never looked back. They asked for one in each room within the first two weeks. They've been using these for nearly a year now, and at worst, they've had to power cycle them, which is nearly instantaneous.

Two out of three DACs had the side contacts of the line out jack smashed in so that instead of contacting the sides of the inserted plug, they completely blocked the line out(which is the only output). The jacks were ruined, therefore two of the three were completely DOA due to physical trauma during manufacturing. Two of the DACs hadn't even been snapped apart and were not properly washed, so were still covered in sticky corrosive flux. If I could give it zero out of five, I would. All three DACs shipped were damaged and non-functional due to poor manufacturing and zero QA(line out completely blocked is obvious, just shine a light inside, as is completely coated with flux)

I got this to build a DIY bluetooth speaker with an ESP32, it works wonderfully. The sound quality is better than I expected. It will easily drive headphones or the line-in on an amplified speaker.

Three of them for similar price to one, so was skeptical of quality, but wired it up and worked first try. Definitely would recommend.