
Precautions
2.1 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 
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 2–1. Quick Start Platform Map
6b  | 1  | 10  | 6b  | 7b  | 
6b
Power Input
J1 VCC In +  | VCC(J1) DC SOURCE  | (J2)  | JP2 AC/DC  | JP3 Batt  | 
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  | JP1  | 
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  | F1  | C1+  | 
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  | VR1  | 
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D4 J2 AC/DC In  | D3  | 
  | D2  | D1  | 
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J3 Right In  | 
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  | LED1 VCC  | R1  | |
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Signal Conditioning
Off Pwr![]()
On  | ICC  | ||
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S1  | JP4  | 
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B1
Audio
Power
Amps
IDD
JP5
R2
SUPPLY  | POWER  | 
  | VR2  | 
U6  | F2  | ||
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  | +  | 
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  | J6 VDD In/Out  | 
  | LED2 VDD  | 
  | J7  | 
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  | Right Out  | |
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  | J8  | 
6a
DC
Power
In/Out
8
Audio Input
J4 J5
Stereo Left
InIn
TEXAS INSTRUMENTS 1997
S2  | Off  | 
U1  | 
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Conditioning  | On  | 
****CAUTION****
Do not insert or remove EVM boards with power applied
TP1 GND | ||||
Evaluation Platform  | ||||
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SLOP097 Rev. C.1 | 
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3  | 
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U3  | 
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  | U2  | 
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  | Right Out  | 
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  | Left Out  | 
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U4  | 
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  | JP6  | Mode  | +  | 
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  | JP7 HP(U5)  | Mute  | 
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U5  | U5  | +  | 
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C3 JP8  | 
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  | Polarity  | J9 Left Out  | 
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  | Lo  | Spk(U2 -  | 
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  | Hi  | U4)  | 
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  | Stereo  | |||
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  | S3 HP Source  | 
  | C2  | HP Out  | J10  | |||
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  | R3  | 
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  | R4  | 
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  | R5  | 
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Speaker
Output
Headphone Output
9
Quick Start  |