4 GY PCM5102 DAC module

Dale Whinham edited this page 2021-01-13 21:56:40 +00:00

Table of Contents

• Jumpers
• Pinout
• mt32-pi setup

This inexpensive DAC module can be found on AliExpress and other places like eBay for very little money. It features the Texas Instruments PCM5102A on a small breakout board with integrated 3.5mm jack.

Jumpers

The module has four solder-pad jumpers on the back which must be set correctly before sound will be produced. Some boards arrive with no jumpers soldered at all, or configured incorrectly, so be sure to check it and (re)solder the pads.

Ensure your board is configured as shown in the picture above, that is:

• 1 = L
• 2 = L
• 3 = H
• 4 = L

Pinout

Connect your module to the Raspberry Pi as follows:

GY-PCM5102 pin	Physical Raspberry Pi pin	BCM pin
SCK	9 (unused, grounded)	N/A
BCK	12	18
DIN	40	21
LCK	35	19
GND	6	N/A
VIN	2	N/A

mt32-pi setup

This DAC requires no special configuration; simply enable I²S output in your mt32-pi.cfg:

[audio]
output_device = i2s

🏠 Home

📝 Configuration file

💾 SD card preparation

🔧 Updating mt32-pi

🎹 MIDI connectivity

• USB MIDI interfaces
• GPIO MIDI interface
• MIDI via RS 232 or USB to serial
• MIDI via the network

🔊 I²S DACs

• CJMCU-5102 DAC module
• GY-PCM5102 DAC module

📺 LCD and OLED displays

• Hardware hacks

🖧 Networking

• RTP-MIDI (AppleMIDI)
• UDP MIDI
• Embedded FTP server

🔩 Custom hardware

• Control surface

🕹️ MiSTer FPGA

• Setup and usage
• Tested USB cables
• Interface pinout

🎶 MT-32 synthesis

• MIDI channel assignment

🎺 SoundFont synthesis

• Recommended SoundFonts
• Effects profiles

💬 Custom SysEx messages

• System Exclusive utilities

🎬 Showcase

❓ Help

• FAQ
• Troubleshooting

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❤ Support mt32-pi

Amazon wishlist
Buy mt32-pi stickers

© Dale Whinham 2020-2022. Released under the GNU General Public License v3.0.