2. Pin-out

2.1. Pin assignment

epc901

32

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

Figure 4: Pin-out of epc901 with view to the photo-sensitive side (top-view)

2.2. Pin table

Pin no. Pin name

Pin type

Default [V] Description

Digital pins

2

PWR_DOWN

DI

0

Power-down mode enable

3

CLR_DATA

DI

0

Clear internal data memory controller

5

CLR_PIX

DI

0

Rising edge resets pixels and its controller

6

SHUTTER

DI

0

Exposure active when SHUTTER set

12

READ

DI

0

Read-out control and read clock

4

DATA_RDY

DO

Flag when data on video interface is ready. Used as a strap pin to turn on/off

the charge pump

13

SDA

DIOD

VDD

I2C serial data (open drain)

14

SCL

DIOD

VDD

I2C serial clock (open drain)

15

ROI_SEL

DI

0

Region of interest selection

17

CS1

TER

VDD/2

I2C chip select 1

19

CS0

TER

VDD/2

I2C chip select 0

21

GAIN

TER

VDD/2

Select gain of read-out path

22

BW0

TER

VDD/2

LSB of bandwidth of video amplifier

23

BW1

TER

VDD/2

MSB of bandwidth of video amplifier

24

RD_DIR

DI

0

Read-out direction

25

HOR_BIN

TER

VDD/2

Horizontal binning selection

30

TEST_MODE

DI

0

Chip test

Analog pins

8

VIDEO_N

AO

Negative terminal of video output

9

VIDEO_P

AO

Positive terminal of video output

11

VIDEO_CM

AI

VDD/2 or 0 Voltage to set video output common-mode

27

I_BIAS

AI

Bias current

28

ANA_TEST_1

AIO

0

Analog test in-/output 1

29

ANA_TEST_0

AIO

0

Analog test in-/output 0

Supply pins

26

VDD

Supply

Positive chip supply voltage

10

VDD_OA

Supply

Positive supply of video amplifier

32

VDD_1V8

AO / Supply

Decoupling of digital partition

18

VDD_5V0

AO / Supply

Decoupling of CCD bias voltage, input is supplied externally (refer to 12.2.)

20

VDD_7V0

AO / Supply

Decoupling of charge pump

16

AGND

Supply

Analog ground

1

AGND

Supply

Analog ground

7

GND_OA

Supply

Video amplifier ground

31

DGND

Supply

Digital ground

Definitions:

■ DI:

Digital input pin, with an internal pull-down resistor of approx. 100-250kΩ

■ DO:

Digital output pin

■ DIOD:

General purpose bidirectional digital pin with open-drain output, requires external pull-up resistor

■ AO:

Analog output

■ AI:

Analog input

■ AIO:

Analog input and output

■ TER:

Ternary input pin, with a pull-down and an equal pull-up resistor of approx. 100-250kΩ which tie the pin to the VDD/2 state.

© 2016 ESPROS Photonics Corporation

Characteristics subject to change without notice

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Datasheet_epc901-V5.6

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