2015-05-11 04:46:25 +08:00
|
|
|
<!--
|
|
|
|
|
---
|
2015-11-07 01:42:12 +08:00
|
|
|
name: "Pi-DAC+"
|
|
|
|
|
manufacturer: IQaudIO
|
|
|
|
|
buy: http://www.iqaudio.co.uk
|
|
|
|
|
description: An I2S digital to analog audio converter HAT for the Pi
|
|
|
|
|
install:
|
|
|
|
|
'devices':
|
|
|
|
|
- 'i2c'
|
|
|
|
|
pincount: 40
|
2015-05-11 04:46:25 +08:00
|
|
|
pin:
|
|
|
|
|
3:
|
2015-11-07 01:42:12 +08:00
|
|
|
mode: i2c
|
2015-05-11 04:46:25 +08:00
|
|
|
5:
|
2015-11-07 01:42:12 +08:00
|
|
|
mode: i2c
|
2015-05-11 04:46:25 +08:00
|
|
|
12:
|
|
|
|
|
name: I2S
|
2015-11-07 01:42:12 +08:00
|
|
|
15:
|
|
|
|
|
name: (optional) Mute/Unmute Pi-AMP+
|
2015-05-11 04:46:25 +08:00
|
|
|
16:
|
2015-11-07 01:42:12 +08:00
|
|
|
name: (optional) Rotary Encoder
|
2015-05-11 04:46:25 +08:00
|
|
|
18:
|
2015-11-07 01:42:12 +08:00
|
|
|
name: (optional) Rotary Encoder
|
|
|
|
|
20:
|
2015-06-25 23:59:01 +08:00
|
|
|
22:
|
2015-11-07 01:42:12 +08:00
|
|
|
name: (optional) IR Sensor
|
2015-05-11 04:46:25 +08:00
|
|
|
35:
|
|
|
|
|
name: I2S
|
|
|
|
|
38:
|
|
|
|
|
name: I2S
|
|
|
|
|
40:
|
|
|
|
|
name: I2S
|
|
|
|
|
-->
|
|
|
|
|
#IQaudIO Pi-DAC+
|
|
|
|
|
|
|
|
|
|
The Pi-DAC+ takes the digital audio signals (I2S) from the Raspberry Pi and through the
|
|
|
|
|
onboard Texas Instruments PCM5122 DAC delivers variable output (hardware volume
|
2015-11-07 01:42:12 +08:00
|
|
|
control) analog audio to the Pi-DAC+ Phono connectors. The PI-DAC+ also, via the
|
2015-05-11 04:46:25 +08:00
|
|
|
Texas Instruments TPA6133A headphone amp, supports the direct use of headphones via
|
2015-11-07 01:42:12 +08:00
|
|
|
the Pi-DAC+ 3.5mm audio jack.
|
2015-06-25 23:59:01 +08:00
|
|
|
|
|
|
|
|
The Pi Dac uses GPIO22 to mute/unmute the Pi-AMP+.
|
|
|
|
|
|
|
|
|
|
You can use GPIO25 to connect an IR sensor and GPIO23/24 for a rotary encoder. Both of
|
2015-11-07 01:42:12 +08:00
|
|
|
these parts are optional, but are broken out on the Pi-DAC+ for convenient access.
|
|
|
|
|
|
|
|
|
|
Note: pins marked as optional can be used for general purpose if those add-ons are not enabled by software.
|
