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AudioInjector Octo 8 Channel Sound Card for The Raspberry Pi
8 channels out, 6 channels in, operating over the GPIO header Linux ALSA driver already integrated into the stock Raspbian release DAC and ADC : 96 kHz, 24 bit audio. Customisable analogue breakouts, RCA connectors supplied, Differential lines available.
AudioInjector
AudioInjector Octo 8 Channel Sound Card for The Raspberry Pi
AudioInjector Isolated DAC and ADC Sound Card for The Raspberry Pi
Features Raspberry Pi 40 pin standard header (suits Pi 0, 2, 3, 4 & expected future versions) Isolated acoustic pathway allowing further simplification in analogue design Isolated acoustic pathway ensuring no embedded nor mains grid noise only acoustic pathway Main soundcard with all input, output and mute codec lines broken out Main soundcard with +-12V and phantom power lines provided Main soundcard with GPIO lines broken out for preamplifier control Preamplifier boards (skins) are interchangeable. Preamplifier board can be changed for different ones with other features. We have future proofed the preamplifier connectors to allow all sorts of different designs to be made, for example microphone preamps, headphone amps, phono preamplifiers. Build your own preamplifier PCBs and attach them (implements the Audio Injector Analogue Breakout Standard v1) Integrated into Linux (for Rasbian - Raspberry Pi) and the ALSA machine driver is easily ported to other Linux based embedded systems. Specifications 192 kHz sample rates, 24 bit audio words, using the cs4272 codec Suitable preamplifiers available (check their pages here or on the shop). Ships with a 40 pin header assembled, a second header slot on the sound card not assembled for you to use. Isolation hardware (magnetic) On the chip audio mixer to control the sound levels and features. DC coupled - no AC coupling caps Main sound card DAC Full Scale (FS) peak to peak output voltage : 4.8 V Main sound card ADC FS peak to peak input voltage : 5.65 V Main sound card closed loop gain (4.8/5.65) : -1.42 dB FS voltage levels are accurate to the tolerances of the cs4272 codec (specified in their data sheet).
AudioInjector
AudioInjector Isolated DAC and ADC Sound Card for The Raspberry Pi
Audio Injector XLR preamplifier for The AI-ABS v1 Standard
Signal relay muting, balanced low noise design. DC (0 Hz) to 96 kHz bandwidth. Impliments a third order low pass output filter. Implements the AI-ABS v1 analogue standard - will interface any soundcard which implements this standard. 13 dB output gain, -12.8 dB input gain. Designed to run output lines around +- 10 V. Example sound card matches : Audio Injector Isolated and Pro. sound cards. Features and specifications Balanced preamplifier with XLR connectors and headers pre-assembled Audio Injector analogue breakout standard headers (suits any soundcard which implements the AI-ABS v1 standard) Professional level signals Relays as muting circuits - ensuring popless & silent reboots DC coupled - no AC coupling caps 0 Hz to 96k Hz analogue bandwidth Output gain : 13 dB Input gain : -12.8 dB XLR preamplifier designed FS peak to peak output voltage : around 20.4 V (about 19.4 dBu) Very low harmonic distortion - we use film caps. in the signal path, we also don't use AC coupling caps. Very low noise floor, due to the balanced design and output buffer circuitry.
AudioInjector
Audio Injector XLR preamplifier for The AI-ABS v1 Standard
Audio Injector Ultra 2 Sound Card for The Raspberry Pi
Stereo balanced (and unbalanced) input and output, including 2 microphones, a preamplifier board and IO breakout boards. Standard GPIO available to allow you to keep stacking add ons and hats DAC and ADC : 192 kHz. Linux ALSA driver already integrated into the stock Raspbian release.
AudioInjector
Audio Injector Ultra 2 Sound Card for The Raspberry Pi
Audio Injector Sound Card for The Raspberry Pi with inbuilt Microphone
Stereo RCA input and output, with volume knobs Headphone amplifier - 50 mW max power into 16 ohm and 30 mW max power into 32 Ohm headphones Standard GPIO available to allow you to keep stacking add ons and hats DAC and ADC : 96 kHz, 32 bit audio. Linux ALSA driver already integrated into the stock Raspbian release.
AudioInjector
Audio Injector Sound Card for The Raspberry Pi with inbuilt Microphone
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