TS4851

Daisy Chain Samples

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7 Daisy Chain Samples

A daisy chain sample is a “dummy” silicon chip that can be used to test your flip-chip soldering process

and connection continuity. The daisy chain sample features paired connections between bumps, as

shown in the schematic below. On your PCB layout, you should design the bump connections such that

they are complementary to the above schema (meaning that different pairs of bumps are connected on

the PCB side). In this way, by simply connecting an ohmmeter between pin 1A and pin 5A, you can test

the continuity of your soldering process.

The order code for daisy chain samples is given below.

Order code for daisy chain samples

Figure 62: Daisy chain sample mechanical data

R

OUT-

GND

R

OUT +

L

OUT -

L

OUT +

R

IN

VCC

DATA

L

IN

VCC

NC

ENB

PHONE

IN

SPKR

OUT +

SPKR

OUT -

CLK

GND

BYPASS

2.44 mm

2.17 mm

AE

D

C

B

1

5

4

3

2

7

6

R

OUT-

GND

R

OUT +

L

OUT -

L

OUT +

R

IN

VCC

DATA

L

IN

VCC

NC

ENB

PHONE

IN

SPKR

OUT +

SPKR

OUT -

CLK

GND

BYPASS

2.44 mm

2.17 mm

R

OUT-

GND

R

OUT +

L

OUT -

L

OUT +

R

IN

VCC

DATA

L

IN

VCC

NC

ENB

PHONE

IN

SPKR

OUT +

SPKR

OUT -

CLK

GND

BYPASS

R

OUT-

GND

R

OUT +

L

OUT -

L

OUT +

R

IN

VCC

DATA

L

IN

VCC

NC

ENB

PHONE

IN

SPKR

OUT +

SPKR

OUT -

CLK

GND

BYPASS

R

OUT-

GND

R

OUT +

L

OUT -

L

OUT +

R

IN

VCC

DATA

L

IN

VCC

NC

ENB

PHONE

IN

SPKR

OUT +

SPKR

OUT -

CLK

GND

BYPASS

2.44 mm

2.17 mm

AE

D

C

B

1

5

4

3

2

7

6

AE

D

C

B

1

5

4

3

2

7

6

Part Number

Temperature Range

Package

Marking

J

TSDC02IJT

-40, +85°C

•

DC2