TS4985

Application Information

25/29

4.11

Demoboard

A demoboard for the TS4985 in flip-chip package is available.

For more information about this demoboard, please refer to Application Note AN2152, which

can be found on www.st.com.

Figure 67 shows the schematic of the demoboard. Figure 68, Figure 69 and Figure 70 show the

component locations, top layer and bottom layer respectively.

Figure 67. Demoboard schematic

1

2

Cn1

InputL

1

2

Cn3

1

2

Cn4

InputR

1

2

Cn6

100nF

1

2

C1

1

2

C3

22K

2

1

R1

2

1

R3

22K

2

2

R8

22K

2

22K

2

R7

100nF

1

2

C4

1

2

C6

1

2

C2

1

2

C5

100nF

C8

1uF

C7

1uF

C9

VCC

1

2

Cn9

Vcc

1

2

Cn2

OUTL

1

2

Cn5

OUTR

GND

GND

GND

GND

1

2

3

Cn7

StandByL

VCC

Jumper J1

6

5

15

4

3

Bias

STDBYL

13

14

11

12

7

Bypass

VO-L

VO+L

VO-R

VO+R

IN-L

IN+L

IN-R

IN+R

STDBYR

8

+

-

+

-

+

-

AV = -1

+

-

AV = -1

U1

TS4985_FC_ADAPTER

1

2

3

Cn8

StandByR

VCC

Jumper J2

neg

pos.

neg.

pos.

neg.

pos.

neg.

pos.

GND