Texas Instruments TPA0202 - Manual (Page 18)

Precautions
3-2 Details
3.1 Precautions
Power Supply Input Polarity and Maximum Voltage
Always ensure that the polarity and voltage of the external power
connected to V
CC
power input connector J1, J2, and/or V
DD
power
input connector J6 are correct. Overvoltage or reverse-polarity
power applied to these terminals can open on-board soldered-in
fuses and cause other damage to the platform, installed evaluation
modules, and/or the power source.
Inserting or Removing EVM Boards
Do not insert or remove EVM boards with power applied — damage
to the EVM board, the platform, or both may result.
Figure 3–1. The TI Plug-N-Play Audio Amplifier Evaluation Platform
Signal Conditioning
****CAUTION****
Do not insert or remove
EVM boards with power
applied
ICC
JP4
F1
VR1
R1
JP3 JP2 JP1
AC/DC (J2) VCC(J1)
D1 D2 D3
D4
J2
J3
J4
J5
AC/DC
In
VCC
In +
J1
DC
SOURCE
LED1 VCC
LED2 VDD R2
JP5 IDD
B1
U6
POWER SUPPL
Y
U3
U4
U5
U1
U2
Audio
Power
Amps
On
Of
f
Conditioning
S2
J7
J8
Right
Out
Left Out
+–
+–
JP6
Mode
Mute
Spk(U2-U4)
JP8
J9
Left Out
JP7
S3 HP Source
U2-U4
U5
Polarity
Lo
Hi
HP(U5)
C3
C2
+
+
R3
R4 R5
J10
Stereo
HP Out
TP1
GND Plug-N-Play Audio Amplifier
Evaluation Platform
SLOP097 Rev. C.1
Stereo
In
Right
In
Left
In
J6 In/Out VDD
F2
VR2
+
DC
Power
In/Out
Speaker
Output
Headphone
Output
Audio
Input
Power
Input
Batt
C1+
Right
Out
On Of
f
Pwr S1
TEXAS INSTRUMENTS 1997