57 lines
1.4 KiB
Markdown
57 lines
1.4 KiB
Markdown
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<!--
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---
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name: Pi-DAC+
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class: board
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type: audio
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formfactor: HAT
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manufacturer: IQaudIO
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description: An I2S digital to analog audio converter HAT for the Pi
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url: http://www.iqaudio.co.uk/audio/8-pi-dac-0712411999650.html
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buy: http://www.iqaudio.co.uk
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image: 'iqaudio-pi-dac.png'
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pincount: 40
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eeprom: yes
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pin:
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'3':
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mode: i2c
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'5':
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mode: i2c
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'12':
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name: I2S
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'15':
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name: Mute/Unmute
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description: Pi-AMP+ only (optional)
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'16':
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name: Rotary Encoder
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description: (optional)
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'18':
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name: Rotary Encoder
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description: (optional)
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'22':
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name: IR Sensor
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description: (optional)
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'35':
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name: I2S
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'38':
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name: I2S
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'40':
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name: I2S
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install:
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'devices':
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- 'i2c'
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-->
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#Pi-DAC+
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The Pi-DAC+ takes the digital audio signals (I2S) from the Raspberry Pi and through the
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onboard Texas Instruments PCM5122 DAC delivers variable output (hardware volume
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control) analog audio to the Pi-DAC+ Phono connectors. The PI-DAC+ also, via the
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Texas Instruments TPA6133A headphone amp, supports the direct use of headphones via
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the Pi-DAC+ 3.5mm audio jack.
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The Pi-DAC+ uses GPIO22 to mute/unmute the Pi-AMP+.
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You can use GPIO25 to connect an IR sensor and GPIO23/24 for a rotary encoder. Both of
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these parts are optional, but are broken out on the Pi-DAC+ for convenient access.
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Note: pins reserved for the rotary encoder and IR sensor can be used for other purposes if those add-ons have not been fitted and enabled by software.
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