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Raspberry Pi IQAudio DAC Pro 專業版 (DEV-17739)
DESCRIPTION
The IQAudio DAC Pro, a new breed of audiophile DAC for the Raspberry Pi! With Phono (RCA), Heaphone (3.5mm) and support for Balanced / Differential output (for XLR use in Studio, or home studio), it allows connection to studio equipment or powered speakers over long cable runs. Now you can run your disco, radio station or home studio from a Raspberry Pi!
IQAudio DAC Pro，Raspberry Pi的新型發燒級DAC！借助Phono（RCA），Heaphone（3.5毫米）並支持平衡/差分輸出（用於Studio或家庭工作室的XLR），它可以通過長電纜連接到工作室設備或有源揚聲器。現在，您可以從Raspberry Pi運行迪斯科，廣播電台或家庭工作室！
The DAC Pro comes complete with PCB spacers, screws and two 3 Pin JST headers for balanced output support. It utilises the Texas Instruments PCM5242 DAC, the big brother of the PCM5122 featured on the DAC+ and boasts balanced output, better Signal to Noise Ratio and THD!
DAC Pro隨附PCB墊片，螺釘和兩個3引腳JST接頭連接器，以實現平衡的輸出支持。它利用了德州儀器（TI）的PCM5242 DAC，這是DAC +上的PCM5122的老大哥，並具有平衡的輸出，更好的信噪比和THD！
With the Linux drivers built in to Raspbian no kernel recompilation is needed and the DAC Pro is supported by all the regular audio software, just like the DAC+. It's also compatible with the AMP+.
Raspbian內置了Linux驅動程序，因此無需重新編譯內核，並且所有常規音頻軟件（如DAC +）都支持DAC Pro。它也與AMP +兼容。
The DAC Pro also includes the headphone amplifier on the DAC HAT delivering an all in one Full HD audio experience for those who listen through headphones, volume is again hardware based under software control and shared with Line Out.
DAC Pro還包括DAC HAT上的耳機放大器，可為通過耳機收聽的人提供全高清音頻體驗，音量再次由硬件控制，並由軟件控制並與Line Out共享。
A fully HAT compliant Raspberry Pi expansion board with EEPROM support, the DAC Pro delivers Full HD audio from your Raspberry Pi. As the DAC Pro uses the same family of audio chipset as the DAC+ and full Linux device driver support is already built into the official Raspbian Linux distribution.
完全支持HAT的Raspberry Pi擴展板具有EEPROM支持，DAC Pro可從Raspberry Pi提供Full HD音頻。由於DAC Pro使用與DAC +相同的音頻芯片組系列，並且正式的Raspbian Linux發行版中已經內置了完整的Linux設備驅動程序支持。
FEATURES
- Raspberry Pi HAT (A+/B+/2/3/3B+/4) compliant accessory
- Pre-programmed EEPROM for auto configuration
- Full-HD audio – up to 24-bit/192kHz playback
- Integrated hardware volume control (via ALSA)
- Built in High quality audio headphone amplifier (TI TPA6133A)
- Class leading audio; 114db SNR, and -94db THD
- Audiophile TI Burr Brown 32-bit/384kHz DAC (TI PCM5242)
- Advanced ESD protection
- Digital I2S audio signals
- Raspberry Pi powered, no external power requirements
- Industry standard audio quality Phono/RCA connectors
- Balanced output exposed on PCB
- Built in mini DSP
- Full GPIO access with no soldering required
- 符合Raspberry Pi HAT（A + / B + / 2/3 / 3B + / 4）的附件
- 預編程的EEPROM用於自動配置
- 全高清音頻–最高24位/ 192kHz播放
- 集成硬件音量控制（通過ALSA）
- 內置高品質音頻耳機放大器（TI TPA6133A）
- 一流的音頻；SNR為114db，THD為-94db
- 高保真TI Burr Brown 32位/ 384kHz DAC（TI PCM5242）
- 先進的ESD保護
- 數字I2S音頻信號
- Raspberry Pi供電，無需外部電源
- 行業標準的音質Phono / RCA連接器
- 平衡輸出暴露在PCB上
- 內置迷你DSP
- 完全GPIO訪問，無需焊接
- P1：模擬輸出（0..2VRMS），帶有GPIO27，MUTE信號（耳機檢測），左右音頻以及左右接地。
- P6：耳機插孔信號（針腳1：左，2：接地，3：右，4：接地，5：檢測）
- P7 / 9：差分（0..4VRMS）輸出（P7：LEFT，P9：RIGHT）
- P10：備用5v輸入，為Raspberry Pi並行供電
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