MV1820
ELECTRICAL CHARACTERISTICS (continued)
These characteristics are guaranteed over the following conditions (unless otherwise stated)
T
amb
= 0 to 70˚C, V
DD
= 5V
±
10%
Characteristic
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
1
0
V
DD
-1.0
-22
-10
-50
0.8
V
DD
-220
+10
V
V
µA
µA
V
IN
= V
SS
V
IN
= V
DD
0.2
0.4
V
11
11, 13
0
3.5
0.1
100
1.5
V
DD
0.4
1000
V
V
V
kHz
100k (nom) pull-up resistor
I
OH
= 2.4mA
100k (nom) pull-up resistor
I
OL
= 3.0mA
Not clamped when V
DD
= 0V
Pin
Value
Min
Typ
Max
Units
Conditions
NOTE
Input voltage low and input voltage high for EXT/INT, AS and XTI are as specified for DATA I/O.
PIN DESCRIPTION
Symbol
RESET
EXT/INT
Pin
1
2
Pin Name and Description
Active Low Reset.
Includes a 100kΩ pull - up resistor
Control Pin for SYNC I/O and DATA I/O.
Includes a 100kΩ 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.
Address select for I
2
C bus.
[0010 0001] with AS set high, or [0010 0011] with AS
set low. Includes 100kΩ pull - down resistor.
Data input/output.
Sync input/output.
I
2
C bus serial clock.
Positive supply voltage +5V
±
10%
I
2
C bus bi-directional data port.
Active low open drain output data available signal to microprocessor.
Includes 100kΩ pull - up resistor
Crystal out,
27.75MHz fundamental crystal with on-chip 1MΩ resistor to XTI.
Crystal input.
BLC
WLC
VIDEO
GND
TCR
AS
DATA I/O
SYNC I/O
SCL
VDD
SDA
DAV
XTO
XTI
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3
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