Texas Instruments TPA0242 - Manual (Page 25)

Using The TPA0242 EVM With the Plug-N-Play Evaluation Platform
3-9 Details
3.3.2 TPA0242 Module Jumper Settings and Switches
The TPA0242 EVM is equipped with a pushbutton SPST switch and a jumper
that acts as an SPST switch to allow module operation to be modified to suit
various requirements. In the following discussion, setting a jumper to
ON
means that a shunt is installed across the two pins of the jumper. Setting a
jumper to
OFF means that no shunt is installed on the jumper. See Figure 3.5.
In typical applications, some or all of the jumper functions are controlled by the
system microcontroller or external logic.
Figure 3–5. TPA0242 EVM Jumpers and Switches
R4
100 k Ω
C12
10 µ F
GND GND
RLINEIN PCB ENABLE
SHUTDOWN VOLUME
ROUT+ LOUT+
ROUT– LOUT–
SE/BTL LIN
PC–BEEP BYPASS
GND GND
RHPIN LLINEIN
VDD LHPIN
PVDD PVDD
CLK RIN
10
9
12
11
6
5
8
7
2
1
4
3
23
22
21
20
19
18
17
16
15
14
13
24
S1
L OUT –
L OUT +
L HP
VDD
C4
0.47
µ F
R3
0 Ω
R LINE –
R OUT +
R HP
VDD
ROUT–
SE/BTL
TPA0242
C12
0.47 µ F
C9
0.47 µ F
L IN +
C2
0.47
µ
F
R IN +
GND
C8
0.47
µ
F
C7
0.47
µ
F
L LINE –
CCW
VDD
R2
50 k Ω
VDD
R1
100 k Ω
C1
0.47 µ F
SHUTDOWN
SHUTDOWN
C3
0.47 µ F
C10
10
µ
F
GND
C5
0.1
µ
F
TP1
C11
0.47
µ
F
PCBEEP
VDD
S2
CW
C6
47 nF
S3
HP/LINE
S4
SE/BTL