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 VCC power input connector J1, J2, and/or VDD power

input connector J6 are correct. Overvoltage or reverse-polarity

power applied to these terminals can open onboard 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
SUPPLY
U3 U4
U5
U1
U2
Audio
Power
Amps
OnOff 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
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
Off Pwr
S1
TEXAS
INSTRUMENTS
1997
R4