JustBoom DAC HAT為Raspberry Pi

JustBoom DAC HAT for the Raspberry Pi


Hats & Plates



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The JustBoom DAC HAT is a plug and play, high resolution, digital-to-analog converter for the Raspberry Pi. Simply stack the plug-and-play add on board (HAT) onto your Raspberry Pi A+, B+, 2B or the new 3B and it will be ready to use immediately.

Just connect your DAC HAT to a set of powered speakers or an audio amplifier and you can be up and running quickly, enjoying flawless high quality audio playback within minutes of unboxing this Raspberry Pi HAT. 

Includes a 384kHz/32 bit DAC chip with hardware volume mixing as well as a 138mW headphone amplifier (note that the Raspberry Pi is only capable of a 192kHz/32bit output). Outputs are line level over RCA and headphone amplified over 3.5mm jack cable. The HAT uses the I2S interface for its audio input which reduces CPU load on the Raspberry Pi compared to USB solutions. It is also powered directly from the GPIO header so no extra cables or power supplies are required to connect to the Raspberry Pi. All of the Raspberry Pi GPIO pins are still accessible on the DAC HAT for easy customisation of your project – add additional sensors, buttons, LEDs, rotary encoders or anything your heart desires.

Use Cases 

Pairing the Raspberry Pi with a high quality audio card provides the perfect solution for a number of exciting projects and applications where the standard on-board audio on the Raspberry Pi simply won’t cut it. Here are some possible use cases for the JustBoom DAC HAT and your Raspberry Pi computer:

•Streaming (either from cloud or network storage) high-definition audio player

•Multi-room audio player

•Media centre / set-top box living room entertainment system

•Shop floor / elevator / background music audio player

•High quality audio player with local storage

•Desktop high definition audio player with amplified headphone output

•And many many more….


•Full high quality audio – 384kHz / 32bit

•Includes both a DAC (digital to analog converter) and headphone amplifier

•Line-level RCA and headphone amplified 3.5mm jack outputs

•Plug and play compatibility for ease of use

•Hardware and software volume control from your Raspberry Pi

•No soldering required

•Powered by the Raspberry Pi GPIO header

•Compatible with Raspberry Pi  A+,B+, 2B and the new 3B 

•Mounting hardware included

•All Raspberry Pi GPIO pins still accessible via 40pin unpopulated extension header

•Our Raspberry Pi DAC is fully HAT compliant

•Full driver support in Raspbian

•Compatible with the JustBoom Player / OSMC / RuneAudio / Volumio / Moode / PiCorePlayer / PiMusicBox / OpenELEC and others

We also have AMP and  Digi Raspberry Pi HATs available to purchase.

Technical Details

Weight G.W 65g    
Battery Exclude
Burr-Brown / Texas Instruments PCM5122 DAC chip – 384kHz / 32 bit. Please note that due to Linux driver restrictions, max frequency is currently limited to 192kHz by standard on the Raspberry Pi, however, this can be increased with some manual driver updates
Texas Instruments TPA6133A2 headphone amplifier – 138mW
Fully integrated hardware volume mixing via “alsamixer” or any ALSA compatible application
Integrated EEPROM for automatic Raspberry Pi devicetree driver configuration and fully HAT compatible
Optional Vishay TSOP4838 IR receiver included in the package (solder yourself if required). Also possible to use Vishay TSOP4938 or TSOP4138 or TSOP34338SS1F
112dB signal to noise ratio (SNR) and -93dB total harmonic distortion (THD +N at -1dB) for best-in-class audio
Advanced ESD protection on both headphone and RCA outputs
Ultra low noise voltage regulator for the best audio output (LDO 10uVrms)

Part List

JustBoom DAC HAT for the Raspberry Pi 1


JustBoom DAC HAT是Raspberry Pi的即插即用,高分辨率,數模轉換器。只需將即插即用(HAT)添加到您的Raspberry Pi A +,B +,2B或新3B上即可立即使用。

只需將DAC HAT連接到一組有源揚聲器或音頻放大器,您可以快速啟動並運行,在幾分鐘之內即可開箱即可播放這款Raspberry Pi HAT的完美無瑕的高品質音頻播放。

包括具有硬件音量混合的384kHz / 32位DAC芯片以及一個138mW的耳機放大器(請注意,Raspberry Pi僅支持192kHz / 32位輸出)。輸出為RCA線路電平,耳機放大超過3.5mm插孔電纜。 HAT使用I2S接口進行音頻輸入,與USB解決方案相比,可以降低Raspberry Pi上的CPU負載。它也直接從GPIO頭供電,所以不需要額外的電纜或電源連接到Raspberry Pi。所有的Raspberry Pi GPIO引腳仍然可以在DAC HAT上訪問,方便您自定義項目 - 添加額外的傳感器,按鈕,LED,旋轉編碼器或任何您所需要的東西。

product guide.png

Use cases.jpg

將Raspberry Pi與高品質音頻卡配對為許多令人興奮的項目和應用程序提供了完美的解決方案,其中Raspberry Pi上的標準機載音頻不會被切斷。以下是JustBoom DAC HAT和您的Raspberry Pi計算機的一些可能的用例:









•全高音質 - 384kHz / 32bit




•您的Raspberry Pi的硬件​​和軟件音量控制


•由Raspberry Pi GPIO頭部提供支持

•與Raspberry Pi A +,B +,2B和新3B兼容


•所有Raspberry Pi GPIO引腳仍然可以通過40pin未擴展擴展接頭連接

•我們的Raspberry Pi DAC符合HAT標準


•兼容OSMC / RuneAudio / Volumio / Moode / PiCorePlayer / PiMusicBox / OpenELEC等

Technical Information.jpg

•Burr-Brown /德州儀器PCM5122 DAC芯片 - 384kHz / 32位。請注意,由於Linux驅動程序限制,Raspberry Pi上的最大頻率限制為192kHz

•德州儀器TPA6133A2耳機放大器 - 138mW


•集成EEPROM,用於自動Raspberry Pi設備驅動程序配置和完全HAT兼容

•可選的Vishay TSOP4838紅外線接收器(需要焊錫)

•112dB信噪比(SNR)和-93dB總諧波失真(THD + N在-1dB),用於同類最佳音頻


•超低噪聲電壓調節器,用於最佳音頻輸出(LDO 10uVrms)


我們也有AMPDigi Raspberry Pi HAT可以購買。




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