Texas Instruments TPA701 manual Precautions, In/Out

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 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 2±1. Quick Start Platform Map

6b 1 10

6b

6b

6b

Power Input

		SOURCE	DC
In +	VCC	J1	VCC(J1)
AC/DC In	J2		D3
	D4

JP1 (J2)

D2

	JP2			JP3	F1
AC/DC			Batt	VR1
		D1

C1+

Off	On	ICC
		JP4
Pwr	S1

B1

U6 POWER SUPPLY		VR2	6a
	F2		DC
			Power
		+	In/Out
		J6 VDD In/Out

8

Audio Input

Right In	J3
Stereo In	J4
Left In	J5

INSTRUMENTS 1997

LED1 VCC R1

Signal Conditioning

U1

	****CAUTION****
	Do not insert or remove
TEXAS	EVM boards with power
	applied

Plug-N-Play Audio Amplifier

Evaluation Platform

SLOP097 Rev. C.1

IDD JP5

	Audio
	Power
	Amps
S2	Off
Conditioning	On

U5

TP1

GND

R2

U3

U4

U5	U2-U4
Source	HP

LED2 VDD			J7
			Right Out
				J8 +
			Out	Right		9
U2						Speaker
				±
						Output
				+
			Left Out			5
	JP6	Mode		±		4
		Mute
HP(U5)	Polarity		J9
	Lo
		Out -Spk(U2U4) JP8		Left
	Hi
	JP7
				Stereo
						Headphone
	+	C3
S3					J10	Output
			HP Out
R3	+	C2
R4					R5

3 2

2-2 Quick Start