Texas Instruments SLOU121 manual Precautions, 1.Quick Start Platform Map

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			F1	C1+
					VR1
D4 J2 AC/DC In	D3		D2	D1
J3 Right In					LED1 VCC	R1

Signal Conditioning

Off Pwr

On	ICC
S1	JP4

B1

Audio

Power

Amps

IDD

JP5

R2

SUPPLY	POWER		VR2
		U6	F2
			+
			J6 VDD In/Out
	LED2 VDD		J7
			Right Out
			J8

7a

DC

Power

In/Out

9

Audio

Input

J4 J5

Stereo Left

InIn

TEXAS INSTRUMENTS 1997

S2	Off
U1
Conditioning	On

****CAUTION****

Do not insert or remove EVM boards with power applied

Plug-N-Play Audio Amplifier
Evaluation Platform	TP1 GND
SLOP097 Rev. C.1
3	2

							+
U3			U2			Right Out
							–
							–
						Left Out
U4				JP6	Mode		+
			JP7 HP(U5)		Mute
U5	U5	U2-U4		+
					C3 JP8
			Polarity			J9 Left Out
				Lo	Spk(U2 -
				Hi	U4)
							Stereo
	S3 HP Source		R3		C2	HP Out		J10
				+
			R4					R5
		6					4

10

Speaker

Output

5

Headphone

Output

2-2 Quick Start