更多資訊
【產品簡介】
HiFiBerry DAC + ADC Pro是用於Raspberry Pi(具有40引腳GPIO連接器的新型)的高分辨率數模和模數轉換器。這是Raspberry Pi的特殊聲卡,已針對一種特定用例進行了優化:最佳的音頻播放和錄製質量。它是專門為不僅需要回放而且還需要記錄功能的應用程序而設計的。
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【產品特性】
- Stereo input and output
- Dedicated 192kHz/24bit high-quality Burr-Brown DAC
- Dedicated 192kHz/24bit high-quality Burr-Brown ADC
- Hardware volume control for DAC and ADC. You can control the input and output parameters using “alsamixer” or any application that supports ALSA mixer controls.
- Connects directly to the Raspberry Pi, no additional cables needed
- No soldering, comes as a pre-fabricated kit. You just plug it onto the Raspberry Pi, it is conform to the Raspberry Pi hardware-attached-on-top (HAT) specification.
- Compatible with all Raspberry Pi models with a 40-pin GPIO connector
- Directly powered from the Raspberry Pi, no additional power supply
- Three ultra-low-noise linear voltage regulators for optimal audio performance
- Low-jitter dual-domain clock for optimised clock decoupling from the Raspberry Pi
- Mic bias voltage for the use with electret microphones
- No anti-aliasing filter in the input path for best recording bandwidth
- HAT compliant, EEPROM for automatic configuration
- Gold plated RCA output connectors
- Comes with all components required to mount it. We include 4 M2.5x12mm spacers to fix the board onto the Raspberry Pi
- Audio input might require Linux kernel update (at least version 4.19.60)

請注意,實際的板可能看起來有些不同。Layout和組件可能會有所更改,恕不另行通知。我們不保證特定的PCB Layout或特定的組件。
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【產品規格】
CONNECTORS AND JUMPERS
- 1 Analog input
- 2 Analoge output
- 3 Analog output
- 4 I2S data
- 5 Microphone bias jumper (you need to close both jumpers to provide a microphone bias voltage)
- 6 Analog input
BALANCED/UN-BALANCED INPUT CONNECTOR J4
This 6-pin connector can be used to connect a balanced input (e.g. XLR or 6.5mm jacks). Pin 1 is on the left bottom corner.
- in R- / 1 / 2 / in R+
- GND / 3 / 4 / GND
- in L / 5 / 6 / in L-
This connector can be used to connect to external components, e.g. an amplifier. The output is connected in parallel to the RCA jacks. Pin 1 is on the top left.OUTPUT CONNECTOR P5
- +5V / 1 / 2 / R
- GND / 3 / 4 / GND
- +5V / 5 / 6 / L
SPECIFICATIONS
- Maximum input voltage : 2.1Vrms (4.2Vrms for balanced input)
- Maximum output voltage : 2.1Vrms
- ADC signal-to-noise ratio : 110db (typical)
- DAC signal-to-noise ratio : 112db (typical)
- ADC THD+N : -90db (typical)
- DAC THD+N : -93db (typical)
- Frequency response : 10Hz-70kHz (-3dB)
- Input gain : -12db to 32dB
- Power consumption : <0.3W
- Sample rates : 44.1-192kHz
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【文件下載】





