Texas Instruments TPA2008D2 manual Precautions, 1.Quick Start Platform Map, Operation

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 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 2–1. Quick Start Platform Map

7b 1 13 7b 7b

7b

Power Input

J1 VCC In +	VCC(J1) DC SOURCE	(J2)	JP2 AC/DC	JP3 Batt
		JP1
D4 J2 AC/DC In	D3		D2	D1

F1

VR1

C1+

Off Pwr

On	ICC
							VR2
S1	JP4
			SUPPLY	POWER
					U6	F2	7a
							DC
							Power
	B1						In/Out
							+
							J6 VDD In/Out
	IDD	JP5	R2

9

Audio Input

J3 Right In	LED1 VCC	R1
	Signal Conditioning
J4 Stereo In		U1

	LED2 VDD	J7
Audio		Right Out
Power
Amps		J8 +
Off S2	U3	Right Out	10
	U2	–	Speaker
			Output

J5 Left In

****CAUTION****

Do not insert or remove

EVM boards with power

applied

Plug-N-Play Audio Amplifier

Evaluation Platform

SLOP097 Rev. C.1

TEXAS INSTRUMENTS 1997

On

Conditioning

TP1

GND

	U4
U5	U5
	Source

					–
				Left Out
	JP6	Mode			+
		Mute
U2-U4	JP7 HP(U5)
		JP8	Spk(U2-U4)
	Polarity				J9
	Lo
	Hi			Left Out
				Stereo
	+		C3			J10
S3 HP			C2	HP Out
	R3
	+
	R4					R5

5

Headphone Output

3 2

64

2-2 Operation