Audio Injector Ultra Sound Card for Your Pi Now on Kickstarter

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Flatmax Studio has just launched their latest board designed for Raspberry Pi on Kickstarter: the Audio Injector Ultra Sound Card.

The board gives high fidelity input and output audio @ 192 kHz, is equipped with digital output (S/PDIF) and offers dual microphone capability.  It uses premium components to ensure a low noise floor, low jitter and low harmonic distortion.

Specifications:

• Direct Inputs – Unpopulated Analogue Connectors (stereo RCAs provided)
• Direct Outputs  – Unpopulated Analogue Connectors (stereo RCAs provided), Digital Optical SPDIF (Optical transducer provided)
• Potentiometer Inputs – Unpopulated Connectors and potentiometer (stereo pot. not provided).
• Potentiometer Outputs – Unpopulated Connectors and potentiometer (stereo pot. not provided).
• Microphone – 2x high-quality ultrasound (model – SPU0410LR5H) surface mount microphones populated
• Audio Codec – Cirrus Logic CS4265 stereo codec
• Sample rate – 192 kHz, 24 bit
• Jitter control – Low jitter clock oscillator
• Hardware Compatibility – Works with the Raspberry Pi 2, Pi 3, Zero, etc.
• Metal film capacitors in the line driver/receiver audio paths yielding low harmonic distortion levels.
• TI DRV632 line drivers on output giving 2Vrms (5.66 V peak-to-peak)
• Mute line driven outputs – for silence!
• Breakout pins exposing 5v, Rin/Lin, InGND, Rout/Lout, GND, Mute.

The Balanced Ultra board is an extra balanced HAT that can be added to the sound card. It appends the following specifications:

• Balanced line drivers (TI DRV632 5.66 V peak-to-peak)
• TI INA1650 balanced line receivers
• Output connectors – 1/4″ TRS connectors (unpopulated)
• Input connectors – 1/4″ TRS connectors (unpopulated)

A pledge of $19 US should get you one Ultra Sound card, while you’d have to spend $38 US for the Balanced Ultra board + Ultrasound card. For further information, you can refer to the Kickstarter page.

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