3. Settings
8
Seiko Epson Corporation
S5U1C31D50T1 Manual
(Rev.2.0)
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.
Table 3.3.1 Amplifier Settings (Differential Input)
Connectors: JP1/JP2/JP3/J13/JP4/ J5
Amplifier
Type
JP1
JP2
JP3
J13
JP4
J5
Class-AB
Short 2 to 3
Short 1 to 2
Short 1 to 2
Short 1 to 2
Don’t care
Short 9 to 10
Short 11 to 12
Class-D
Don’t care
Short 2 to 3
Short 2 to 3
Don’t care
Short 1 to 2
Short 9 to 10
Short 11 to 12
Table 3.3.2 Amplifier Settings (Single-ended Input)
Connectors: JP1/JP2/JP3/J13/JP4/ J5
Amplifier
Type
JP1
JP2
JP3
J13
JP4
J5
Class-AB
Short 1 to 2
Short 1 to 2
Short 1 to 2
Open
Don’t care
Short 10 to 11
Open 9 and 12
Class-D
Don’t care
Short 2 to 3
Short 2 to 3
Don’t care
Short 2 to 3
Short 10 to 11
Open 9 and 12
Содержание S5U1C31D50T1
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