Texas Instruments SLOU121 manual 6.TPA6011A4 EVM Jumpers and Switches, 3.3.2.1S1 — Shutdown Switch

Using the TPA6011A4 EVM With the Plug-N-Play Evaluation Platform

Figure 3–6. TPA6011A4 EVM Jumpers and Switches

ROUT–

GND			1
C11		C10	2
10	∝ F	0.47	∝ F
			3

C1

0.47∝ F

ROUT+

PGND

ROUT– SE/BTL HP/LINE

PVDD

24	ROUT+
VDD
J1	R1
23	100 kΩ
	SE/BTL
22
	J3
	HP/LINE
J2	R2
	100 kΩ

R HP

4

RHPIN VOLUME

21 VDD

VOL

C2

0.47 ∝ F

VDD

R LINE–

5

RLINEIN SEDIFF

20

C3

0.47 ∝ F

VDD

R IN

6

RINSEMAX

19

C7∝ VDD

0.47 F

7

C4

0.47 ∝ F

VDDAGND

VDD
18	GND
C8
0.47	∝ F

L IN

8

LINBYPASS

17

C5

0.47 ∝ F

VDD

J4

L LINE–

9

LLINEIN

R3

Ω

C6

0.47∝ F

FADE

100 k

16

FADE

L HP

10

LHPIN SHUTDOWN

15		SDZ
	S1	R4

VDD	11
C9	∝ F 12
0.47

PVDD

LOUT+

LOUT–

PGND

	100 kΩ
14	VDD
	LOUT+
13	GND

LOUT–

3.3.2.1S1 — Shutdown Switch

Pushbutton switch S1 on the EVM allows the manual shutdown of the TPA6011A4 amplifier IC.

3.3.2.2J1 — Output Mode Jumper

To keep the module amplifier IC in the single-ended output mode regardless of the module control input state, set jumper J1 to ON.

Jumper J1 connects the SE/BTL output mode control input pin on the amplifier IC directly to VDD, so that when J1 is ON, the IC is held in the single-ended

output mode regardless of the state of the SE/BTL module control input. When J1 is OFF, a pulldown resistor on the module holds the IC output mode control input pin low, keeping the IC in the BTL output mode.

The TPA6011A4 amplifier IC has two separate inputs for each channel. An internal multiplexor selects which input to connect to the amplifier based on the state of the SE/BTL pin on the IC.

Details 3-11