Texas Instruments manual 2 TPA0103 Module Jumper Settings, ±5. TPA0103 EVM Jumpers

Using The TPA0103 EVM With the Plug-N-Play Evaluation Platform

3.3.2TPA0103 Module Jumper Settings

The TPA0103 EVM is equipped with several jumpers that act like SPST switches to allow module operation to be modified to suit various requirements. In the following discussion, setting a jumper to ON means that a shunt is installed across the two pins of the jumper. Setting a jumper to OFF means that no shunt is installed on the jumper. See Figure 3.5.

In typical applications, some or all of the jumper functions are controlled by the system microcontroller or external logic.

Note that jumpers S2 through S5 tie various amplifier control input pins directly to VDD. When one of these EVM jumpers is set to ON, the signal on the associated EVM control input pin will have no effect. In addition, VDD appears on that EVM control input pin. Care should be taken to ensure that low-impedance paths to ground are not provided through the circuitry that applies control signals to the EVM control input pins or that external circuits will not be upset by VDD appearing on the EVM control input lines.

Figure 3±5. TPA0103 EVM Jumpers

R15, 20 kΩ

LOUT+

ROUT+

1

24

C8

R13

C3

GND/HS

GND/HS

200 kΩ

5 pF

5 pF

R7

2

23

20 kΩ

R2

NC

NC

20 kΩ

3

22

R14

C1

R1

LOUT+

ROUT+

R8

C6

R4

200 kΩ

1 μF

1

μF

20 kΩ

20 kΩ

4

21

20 kΩ

LIN

LLINE IN

RLINE IN

R9

RIN

5

20

LINHP

LHP IN

20 kΩ

RINHP

R3

RHP IN

R10

R16

C2

6

19

C7

20 kΩ

20 kΩ

1 μF

1 μF

20 kΩ

CIN

RBYPASS

C9

R18

R17

VDD

7

TPA0103

18

2.2 μF

200 kΩ

VDD

VDD

V

20 kΩ

C5

C10

C11

DD

2.2 μF

8

SHUTDOWN

17

2.2 μF

10 μF

GND

NC

S3

C12

R5

9

16

LVDD

HP/L*

5 pF

MUTE OUT

100 kΩ

HP/LINE

S1

10

15

COUT+

COUT+

R11

COUT±

S2

11

14

100 kΩ

MODE B

VDD

S5

MODE B

MODE A

COUT±

12

13

S4

GND/HS

GND/HS

VDD

MODE A

R6

100 kΩ

R12, 100 kΩ

3-8

Details