HT82V842 datasheet(2/18 Pages) HOLTEK

2 / 18 page

Pin Assignment

Pin Description

Pin No.

Pin Name

I/O

Description

1, 3, 17~18, 21

¾ No connection

2, 6~7, 19, 34, 43

VDD

¾ Positive power supply for analog circuit

VRN

Negative reference voltage for internal ADC

Connect to VSS via 0.1

VRP

Positive reference voltage for internal ADC

Connect to VSS via 0.1

8~9, 20, 33, 42

VSS

¾ Negative power supply for analog circuit

VCOM

Common reference voltage for internal ADC

CCDIN

CDS circuit data input

REFIN

CDS circuit reference input

CLPCAP

Clamp level output

Connect to VSS via 0.1

ADIN

ADIN signal input

OBCAP

Black level integration voltage

Connect to VSS via 0.1

mF~1mF (by applications)

MONOUT

Monitor output of CDS or PGA

ADCK

ADC sampling clock input

SHR

Reference sampling pulse input

SHD

Data sampling pulse input

ADCLP

Pulse input for ADIN clamp and black calibration control

BLK

Blanking pulse input

CCDCLP

Clamp control input

OBP

Black level period pulse input

SCK

Serial clock input

SDATA

Serial data input

Serial port chip selection (Active at low)

STBY

Power down control (Active low)

RESET

Reset signal (Active low)

OUTCK

Clock source for ADC output

37~41, 44~48

DO0~DO9

Digital output from ADC

HT82V842

Rev. 1.00

July 15, 2004

H T 8 2 V 8 4 2

4 8 L Q F P - A

1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4

4 8 4 7 4 6 4 5 4 4 4 3 4 2 4 1 4 0 3 9 3 8 3 7

1 0

1 1

1 2

3 6

3 5

3 4

3 3

3 2

3 1

3 0

2 9

2 8

2 7

2 6

2 5

N C

V D D

N C

V R N

V R P

V D D

V S S

V C O M

C C D I N

R E F I N

O U T C K

R E S E T

V D D

V S S

S T B Y

C S

S D A T A

S C K

O B P

C C D C L P

B L K

A D C L P

HT82V842 Datasheet(PDF) 2 Page - Holtek Semiconductor Inc

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