ADRPM Raspberry Pi Magazine Link High Resolution DAC Expansion Board for Raspberry Pi
A DAC board for Raspberry Pi that allows beginners to advanced users to enjoy high-resolution audio!
Product Summary
The popular high-resolution DAC board is back with a commentary!
The "High-Resolution DAC Expansion Board", a product linked with the Raspberry Pi magazine that was very well received at the time of its release, is back with a web commentary! It is an extremely high-performance expansion board, such as high-quality audio produced by the PCM5122, various displays using a color TFT display, and remote control support. The software prepared for this product can be used as it is in the linked article. You can enjoy the network audio function, etc., taking advantage of the network system functions that the Raspberry Pi is good at. It is also possible to further improve the sound quality by installing an external clock board (available as an option). In addition, on the web explanation page newly prepared for the renewal, you can thoroughly explain everything from assembly to a series of actions! Beginners will also be guided to the playback of the sound source. Two types of products are available: pre-assembled / kit. It will satisfy both those who want to touch the player part immediately and those who want to thoroughly enjoy electronic work. With this board, you can turn your Raspberry Pi into a high-performance high-resolution DAC.
This product is a renewal model of a product that was born in a joint project with the April 2018 issue of Raspberry Pi Magazine.
In Mook, more polite and easy-to-read high-quality detailed commentary articles are posted. https://www.nikkeibp.co.jp/atclpubmkt/book/18/267000/
Release of external system clock option board!
This is an external system clock board that can fully demonstrate the capabilities of the ADRPM1801P/K. Kyocera's "KC7050K", which has a good reputation among audiophiles, is used as the crystal oscillation module. By combining this board, it is possible to supply the system clock signal to the high-resolution DAC and aim for higher performance and higher sound quality. .
Click here for the external clock board circuit diagram.
Product features
DAC board for Raspberry Pi that allows beginners to advanced users to enjoy high-resolution audio
In the Raspberry Pi Magazine article, player software that can be operated with an infrared remote control is provided as a sample, and by supporting external system clock input for advanced users, it is possible to aim for further improvement in sound quality and characteristics. . *Additional processing by the customer is required to support external system clock input.
Equipped with TI's high-performance high-resolution audio DAC (PCM5122)
Equipped with a high-performance high-resolution audio stereo DAC module (PCM5122) that supports 32-bit, 384kHz PCM, and you can turn your Raspberry Pi into a high-performance high-resolution audio player just by plugging it into the pin header! * It is recommended to use together with the amplifier unit. Depending on the impedance specifications of your headphones or earphones, it may not be possible to drive due to specifications. (minimum 1kΩ)
128 x 160 dots, color TFT display
Equipped with a color TFT display with a screen size of 28.03 x 35.04 mm, it is possible to display a variety of displays such as album jackets during play.
Name of each part
General knowledge of electronic work and electronic circuits is required to use this product.
(*Raspberry Pi body, case, and cables are not included.)
Basic specifications [Target Raspberry Pi] Raspberry Pi Model B+ / Raspberry Pi 2 Model B / Raspberry Pi 3 Model B / Raspberry Pi 3 Model B+ [Audio data bit length] 16/24/32bit [Sampling frequency] Minimum 8kHz, maximum 384kHz [ Analog output voltage] Standard 2.1 Vrms [Load impedance]: Minimum 1 kΩ [External clock input] x 1 [Display] Color TFT, 128 x 160 dots (screen size 28.03 x 35.04 mm) [Infrared remote control function] Receive *Remote control is not included [Input/output] PCM GPIO input/output x 4, switch input x 2 Audio connector: φ3.5 stereo minijack, SD card slot, support for external system clock input is required.) [Power supply] Power supply from Raspberry Pi [Size] W65xH26xD56mm (excluding protrusions) [Weight] Approx. [Operating temperature] 0 to 40°C (no condensation) [Country of origin] Made in Japan [Warranty period] 1 year from purchase (assembled only)
Hi-Res Audio DAC Module (PCM5122) Product Specifications
[Audio data bit length] 16/24/32bit
[Sampling frequency] Minimum 8kHz, maximum 384kHz
[Number of pins] 28
[Size] W36xH18 (excluding protrusions)
[Weight] About 4g (Board only)
[Accessories] 1 warranty card
[Operating temperature] 0 to 40°C (no condensation)
[Country of origin] Made in Japan
[Warranty period] 1 year from purchase
* Please check the PCM5122 datasheet for detailed IC specifications.
Click here for the circuit diagram of the module! (pdf)
