MV1820

3

ELECTRICAL CHARACTERISTICS (continued)

These characteristics are guaranteed over the following conditions (unless otherwise stated)

I2C bus

SCL, SDA Schmitt inputs

Input voltage Low

Input voltage High

Output voltage Low

SCL clock frequency

DAV data available

Output voltage low

RESET Schmitt input

Input voltage Low

Input voltage High

Input current Low

Input current High

11, 13

11

1

0

3.5

0

-22

-10

0.1

100

0.2

-50

1.5

0.4

1000

0.4

0.8

-220

+10

V

V

V

kHz

V

V

V

µA

µA

100k (nom) pull-up resistor

100k (nom) pull-up resistor

Characteristic

Pin

Min

Typ

Max

Value

Units

Conditions

NOTE

Input voltage low and input voltage high for EXT/INT, AS and XTI are as specified for DATA I/O.

AS

XTO

XTI

Pin

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Pin Name and Description

Active Low Reset. Includes a 100k

Ω pull - up resistor

Control Pin for SYNC I/O and DATA I/O. Includes a 100k

Ω pull - down resistor.

When low or not connected, internal SYNC and DATA are used, pins 9 and 10 are

outputs. When high, supply SYNC and DATA from an external source, pins 9 and

10 are inputs.

Black level capacitor.

White level capacitor.

Input for composite video signal with negative going syncs

Ground 0 volts.

Time constant resistor.

Controlling discharge rate of black and white level

capacitor voltages.

set low. Includes 100k

Ω pull - down resistor.

Data input/output.

Sync input/output.

Positive supply voltage +5V

Active low open drain output data available signal to microprocessor.

Includes 100k

Ω pull - up resistor

Crystal out, 27.75MHz fundamental crystal with on-chip 1M

Ω resistor to XTI.

Crystal input.

DATA I/O

SYNC I/O

SCL

VDD

SDA

DAV

PIN DESCRIPTION

Symbol

RESET

EXT/INT

BLC

WLC

VIDEO

GND

TCR