REV. A

AD9847

–6–

PIN CONFIGURATION

36

35

34

33

32

31

30

29

28

27

26

25

13 14 15 16 17 18 19 20 21 22 23 24

1

2

3

4

5

6

7

8

9

10

11

12

48 47 46 45 44

39 38 37

43 42 41 40

PIN 1

IDENTIFIER

TOP VIEW

(Not to Scale)

SL

REFT

REFB

CMLEVEL

AVSS3

AVDD3

CCDIN

(LSB) D0

D1

D2

DVSS3

DVDD3

D3

D4

BYP2

AVDD2

AD9847

D5

AVSS2

D6

(MSB) D9

BYP1

BYP3

D7

D8

NC = NO CONNECT

PIN FUNCTION DESCRIPTIONS

Pin No.

Mnemonic

Type

*

Description

1–5

D0–D4

DO

Data Outputs

6

DVSS3

P

Digital Ground 3—Data Outputs

7

DVDD3

P

Digital Supply 3—Data Outputs

8–12

D5–D9

DO

13, 14

H1, H2

DO

Horizontal Clocks (to CCD)

15

DVSS1

P

Digital Ground 1—H Drivers

16

DVDD1

P

Digital Supply 1—H Drivers

17, 18

H3, H4

DO

Horizontal Clocks (to CCD)

19

DVSS2

P

Digital Ground 1—RG Driver

20

RG

DO

Reset Gate Clock (to CCD)

21

DVDD2

P

Digital Supply 2—RG Driver

22

AVSS1

P

Analog Ground 1

23

CLI

DI

Master Clock Input

24

AVDD1

P

Analog Supply 1

25

AVSS2

P

Analog Ground 2

26

AVDD2

P

Analog Supply 2

27

BYP1

AO

Bypass Pin (0.1

µF to AVSS)

28

BYP2

AO

Bypass Pin (0.1

µF to AVSS)

29

CCDIN

AI

Analog Input for CCD Signal

30

BYP3

AO

Bypass Pin (0.1

µF to AVSS)

31

AVDD3

P

Analog Supply 3

32

AVSS3

P

Analog Ground 3

33

CMLEVEL

AO

Internal Bias Level Decoupling (0.1

µF to AVSS)

34

REFB

AO

Reference Bottom Decoupling (1.0

µF to AVSS)

35

REFT

AO

Reference Top Decoupling (1.0

µF to AVSS)

36

SL

DI

3-Wire Serial Load (from

µP)

37

SDI

DI

3-Wire Serial Data Input (from

µP)

38

SCK

DI

3-Wire Serial Clock (from

µP)

39

CLPOB

DI

Optical Black Clamp Pulse

40

CLPDM

DI

Dummy Black Clamp Pulse

41

HBLK

DI

HCLK Blanking Pulse

42

PBLK

DI

Preblanking Pulse

43

VD

DI

Vertical Sync Pulse

44

HD

DI

Horizontal Sync Pulse

45

DVSS4

P

Digital Ground 4—VD, HD, CLPOB, CLPDM, HBLK, PBLK, SCK, SL, SDATA

46

DVDD4

P

Digital Supply 4—VD, HD, CLPOB, CLPDM, HBLK, PBLK, CK, SL

47, 48

NC

NC

Internally Not Connected

*Type: AI = Analog Input, AO = Analog Output, DI = Digital Input, DO = Digital Output, P = Power