epc120

Connection Diagrams

Top View

CS

OUTN/

SO

PD

GND

VDD

EN/

SI

LED/S

CK

VDD33

NC

VDD18

3

2

1

10

5

4

7

6

8

9

Top View

05.12.2011

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1

2

3

4

PD

GND

LED/

SCK

EN/

SI

10-Pin Chip Scale Package (CSP)

16-Pin QFN Package

10-Pin

CSP

16-Pin

QFN

Pin Name Type

Description

1

9

VDD

Power supply

Positive power supply

2

7

GND

Power supply

Negative power supply pin.

3

6

PD

Analog Input

Photo diode input.

4

4

CS

Digital Input

SPI Interface: Chip Select. Active low, with pull up

6

1

SO

Digital Output

SPI interface serial out

7

15

SI

Digital Output

SPI interface serial input

8

14

LED

SCK

Digital In / Out

Light barrier:

LED control

SPI Interface:

Shift Clock

9

12

VDD33

Power Supply

Decoupling

A power supply filter capacitor is connected to this pin.

10

10

VDD18

Analog Out

1.8V regulator output, used to connect a filter capacitor. Must not be used to supply

any other circuits.

5

2

NC

Not connected. Leave that pin floating.

n/a

3, 5, 8,

11, 13,

16

NC

Not connected. Connect this pin with VSS.

© 2011 ESPROS Photonics Corporation

Characteristics subject to change without notice

4

Datasheet epc12x - V2.1

www.espros.ch