pHAT Module Series
pHAT-HIFI Technical Description
pHAT-HIFI Technical Description
Page 10 of 20
3.3
Pin Assignment
3.4
Power Supply
3.4.1
Speaker Power Input
The Speaker Power Input requires a 9.0 ~ 15VDC supply from an external mains power
adaptor fitted with a 2.1mm coaxial jack plug to power the speaker amplifier, pinout as
follows:
3.4.2
DAC Power Supply Pins
The pHAT-HIFI provides a supply input and multiple ground connections on the 20+20 header
that connect to the 5.0V supply on the Raspberry-Pi board. The table below describes the
module supply and ground pins.
Table 2: Power Supply Pins
Pin Name
Pin No
Description
Min
Typ.
Max
Unit
V+
2, 4
Power Supply
4.5
5.0
6.0
V
Ground
6,9,14,20,
25,30,34,
39
Power Ground
