Texas Instruments TPA701 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 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

Power Input

Audio

Input

SOURCE	DC	JP1	JP2		JP3	F1		C1+	Off
J1 VCC In +	VCC(J1)	(J2)	AC/DC	Batt	VR1				Pwr
J2 AC/DC In	D3	D2		D1
D4
Right In	J3					VCC	LED1	R1
		Signal Conditioning
Stereo In	J4							U1
Left In	J5
					****CAUTION****
				Do not insert or remove
1997	TEXAS INSTRUMENTS			EVM boards with power
						applied

Plug-N-Play Audio Amplifier

Evaluation Platform

SLOP097 Rev. C.1

On	ICC
	JP4
S1

	B1
	IDD	JP5
	Audio
	Power
	Amps
S2	Off
Conditioning	On

U5

TP1

GND

R2

U3

U4

U5	U2-U4
Source	HP

SUPPLY		POWER	U6			F2		VR2		Power
										DC
									+	In/Out
							VDD In/Out		J6
VDD		LED2			J7
					Right Out
						J8 +
U2					Out	Right				Speaker
						±
										Output
						+
					Left Out
		JP6		Mode		±
				Mute
HP(U5)	Polarity				Out
	JP7		JP8	Spk(U2-U4)
		Lo			J9
		Hi				Left
						Stereo
S3	+			C3						Headphone
								J10		Output
		+		C2
R3					HP Out
R4								R5

3-2 Details