Texas Instruments TPA005D12 manual Precautions, Details

Precautions

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 Ð damage to the EVM board, the platform, or both may result.

Figure 3±1. The TI Plug-N-Play Audio Amplifier Evaluation Platform

Power Input

				JP1				F1	C1+
							VR1
J1 VCC In +		VCC(J1) DC SOURCE		JP2 AC/DC (J2)		JP3 Batt					OffPwr
D4 J2 AC/DC In
			D3		D2	D1
	J3 Right In									R1
								LED1 VCC

On	ICC
S1	JP4

B1
IDD	JP5
Audio
Power

SUPPLY	POWER		VR2
		U6	F2
			DC
			Power
			In/Out
			+
R2			J6 VDD In/Out
	LED2 VDD		J7
			Right Out

Audio Input

Signal Conditioning

J4 Stereo In

U1

J5 Left In

****CAUTION****

Do not insert or remove

EVM boards with power

applied

Plug-N-Play Audio Amplifier

TEXAS INSTRUMENTS 1997

Evaluation Platform

SLOP097 Rev. C.1

	Amps
S2	Off	U3
Conditioning	On	U4

U5

TP1

GND

							J8
							+
						Right Out
	U2						±
							±
						Left Out
			JP6	Mode			+
				Mute
U5	HP(U5) U2-U4	JP7					StereoLeft
				JP8	Spk(U2-U4)
		Polarity					J9
		Lo
			Hi			Out
S3 HP Source		+			C3			J10
		R3	+		C2	HP Out

R4 R5

Speaker

Output

Headphone Output

3-2 Details