Pin Assignment

Pin Description

Pin Name

I/O

Description

AGND

P

Negative power supply for analog circuit

DVDD1

P

Digital Driver Power (3.3V).

CDSCLK2

DI

CDS Video Sample Clock Pulse Input

RLC/ACYC

DI

ACYC auto cycles between R, G, B inputs.

DCLK

DI

ADC Clock. This clock is applied at N times the input pixel rate (N = 2, 3, 6, 8 or any multiple

of 2 thereafter depending on input sample mode).

DGND

P

Digital Driver Ground

SEN

DI

Serial Interface Enable Pulse (High Active)

DVDD2

P

Digital Driver Power(3.3V).

SDI

DI

Serial Data Input

SCK

DI

Clock Input for Serial Interface

OD0~OD2

OD3/SDO

DO

Digital multiplexed output data bus.

ADC output data D[15:0] is available in two multiplexed formats as shown.

When register bit OEB = 0, address bit4 = 1 and SEN has been pulsed high, this pin use as

SDO for register data read-back. Otherwise, this pin use as Digital Data Output.

AVDD

P

Analog Supply (3.3V).

VRB

AO Reference Decoupling, this pin must be connected to AGND via a decoupling capacitor.

VRT

AO Reference Decoupling, this pin must be connected to AGND via a decoupling capacitor.

VRX

AO Reference Decoupling, this pin must be connected to AGND via a decoupling capacitor.

VRLC/VBIAS

AO

Selectable analog output voltage for RLC or single-ended bias reference. This pin would

typically be connected to AGND via a decoupling capacitor. VRLC can be externally driven

if programmed Hi-z.

VIN

AI

Analog Input

Note:

AI=Analog Input; AO=Analog Output; AIO=Analog Inout

DI=Digital Input; DO=Digital Output; P=Power

HT82V42

Rev. 1.00

2

November 20, 2009

H T 8 2 V 4 2

2 0 S S O P - A

2 0

1 9

1 8

1 7

1 6

1 5

1 4

1 3

1 2

1 1

1

2

3

4

5

6

7

8

9

1 0

A G N D

D V D D 1

C D S C L K 2

D C L K

D G N D

S E N

D V D D 2

S D I

S C K

O D 0

V I N

V R L C / V B I A S

V R X

V R T

V R B

A G N D

A V D D

O D 3 / S D O

O D 2

O D 1

H T 8 2 V 4 2

2 0 T S S O P - A

2 0

1 9

1 8

1 7

1 6

1 5

1 4

1 3

1 2

1 1

1

2

3

4

5

6

7

8

9

1 0

A G N D

V I N

C D S C L K 2

A C Y C

D C L K

D G N D

S E N

D V D D 2

S D I

S C K

V R L C / V B I A S

V R X

V R T

V R B

A G N D

A V D D

O D 3 / S D O

O D 2

O D 1

O D 0

ABCD

D12

D8

D4

D0

D13

D9

D5

D1

D14

D10

D6

D2

D15

D11

D7

D3