Audio Amplifier - Epson S5U1C31D50T1 Manual

3. Settings

3.3 Audio Amplifier

The S5U1C31D50T1 board has two types of audio amplifiers shown below.
• Class-AB audio amplifier
• Class-D audio amplifier
The audio amplifier can be selected by setting the JP1, JP2, JP3, J13, JP4 and J5 jumpers. Also, for each amplifier,
the signal to input to the amplifier can be selected from either single-ended input or differential input.
Note: Amplifier settings should not be done during power supply. Parts mounted on the board such as amplifier
may be damaged. Please switch the amplifier with the power off.
Connectors: JP1/JP2/JP3/J13/JP4/ J5
Amplifier
JP1
Type
Class-AB Short 2 to 3
Class-D Don't care
Connectors: JP1/JP2/JP3/J13/JP4/ J5
Amplifier
JP1
Type
Class-AB Short 1 to 2
Class-D Don't care
8
Table 3.3.1 Amplifier Settings (Differential Input)
JP2
Short 1 to 2 Short 1 to 2
Short 2 to 3 Short 2 to 3
Table 3.3.2 Amplifier Settings (Single-ended Input)
JP2
Short 1 to 2 Short 1 to 2
Short 2 to 3 Short 2 to 3
Seiko Epson Corporation
JP3 J13
Short 1 to 2
Don't care
JP3 J13
Open
Don't care
JP4 J5
Short 9 to 10
Don't care
Short 11 to 12
Short 9 to 10
Short 1 to 2
Short 11 to 12
JP4 J5
Short 10 to 11
Don't care
Open 9 and 12
Short 10 to 11
Short 2 to 3
Open 9 and 12
S5U1C31D50T1 Manual
(Rev.2.0)