Silicon Laboratories SI824XCLASSD-KIT SI8410 データシート
S i 8 2 4 x C l a s s D - K I T
6
Rev. 0.2
5. Si8241-Based Class D Amplifier Connection Description
The Si8241-based Class D Amplifier has two Si8241 ISOdrivers and two Si8410 digital isolators installed. Refer to
Figure 7 for the locations of the various I/O connectors and major components. Relevant user connection points
are detailed below.
Figure 7 for the locations of the various I/O connectors and major components. Relevant user connection points
are detailed below.
J1
+50 V
Positive Input Power: Input power connection +50 V, 3 A.
J2
PGND
Power Ground Return, 0 V.
J3
–50 V
Negative Input Power: Input power connection –50 V, 3 A.
J4
SPKA+
Speaker A positive terminal
J5
SPKA–
Speaker A negative terminal
J6
SPKB+
Speaker B positive terminal
J7
SPKB–
Speaker B negative terminal
J8
VBIAS
±12 V Bias supply connector (500 mA)
J9
AUDIO A
RCA input female connector channel A
J10
AUDTIO B
RCA input female connector channel B
JP1
OCPDISA
Over current protection disable channel A channel
JP2
OCPDISB
Over current protection disable channel B channel
JP3
MUTE
Amplifier Mute or manual shut down
LED1
FAULT
Over current protection fault indicator LED
Figure 7. Si8241 Si8241-Based Class D Amplifier Silkscreen
5.1. Voltage and Current Sense Test Points
The Si824x Class D Audio Amplifier reference design has several test points. These test points correspond to the
respective pins on the Si8241, Si8410 as well as other useful inspection points. See “6. Schematics” for more
details.
respective pins on the Si8241, Si8410 as well as other useful inspection points. See “6. Schematics” for more
details.