VSP2272

SLES020 – DECEMBER 2001

4

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Terminal Functions

TERMINAL

TYPE (see

DESCRIPTION

NO.

NAME

TYPE (see

Note 1)

DESCRIPTION

1

B0 (LSB)

DO

A/D converter output, bit 0 (LSB)

2

B1

DO

A/D converter output, bit 1

3

B2

DO

A/D converter output, bit 2

4

B3

DO

A/D converter output, bit 3

5

B4

DO

A/D converter output, bit 4

6

B5

DO

A/D converter output, bit 5

7

B6

DO

A/D converter output, bit 6

8

B7

DO

A/D converter output, bit 7

9

B8

DO

A/D converter output, bit 8

10

B9

DO

A/D converter output, bit 9

11

B10

DO

A/D converter output, bit 10

12

B11 (MSB)

DO

A/D converter output, bit 11 (MSB)

13

DRVDD

P

Power supply for digital output

14

DRVGND

P

Digital ground for digital output

15, 17. 25, 26

35, 36, 41, 42

GNDA

P

Analog ground

16

ADCCK

DI

Clock for digital output buffer

18, 24, 27, 33, 34, 40

VCC

P

Analog power supply

19

PBLK

DI

Preblanking: High = Normal operation mode

Low = Preblanking mode: digital outputs are all 0s

20

CLPOB

DI

Optical black clamp pulse (default = active low) (see Note 5)

21

SHP

DI

CDS reference level sampling pulse (default = active low) (see Note 5)

22

SHD

DI

CDS data level sampling pulse (default = active low) (see Note 5)

23

CLPDM

DI

Dummy pixel clamp pulse (default = active low) (see Note 5)

28

COB

AO

Optical black clamp loop reference (bypass to ground) (see Note 2)

29

BYPP2

AO

Internal reference P (bypass to ground) (see Note 3)

30

CCDIN

AI

CCD signal input

31

BYP

AO

Internal reference C (bypass to ground) (see Note 4)

32

BYPM

AO

Internal reference N (bypass to ground (see Note 3)

37

CM

AO

A/D converter common mode voltage (bypass to ground) (see Note 4)

38

REFP

AO

A/D converter positive reference (bypass to ground) (see Note 4)

39

REFN

AO

A/D converter negative reference (bypass to ground) (see Note 4)

43, 44

NC

Must be left open

45

RESET

DI

Asynchronous system reset (active low)

46

SLOAD

DI

Serial data latch signal (triggered at the rising edge)

47

SDATA

DI

Serial data input

48

SCLK

DI

Clock for serial data shift (triggered at the rising edge)

NOTES:

1. Designators in TYPE: P: power supply and ground, DI: digital input, DO: digital output, AI: analog input, AO: analog output

2. Must be connected to ground with a bypass capacitor. The recommended value is 0.1

µF to 0.22 µF, however it depends on the

application environment. Refer to the optical black level clamp loop section for details.

3. Must be connected to ground with a bypass capacitor. The recommended value is 400 pF to 1000 pF, however it depends on the

application environment. Refer to the voltage reference section for details.

4. Must be connected to ground with a bypass capacitor (0.1

µF). Refer to the voltage reference section for details.

5. Refer to the serial interface section for details.