Datasheet

MAX3816A
I
2
C 2-Wire Extender for DDC in DVI,
HDMI, and VGA Interfaces
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
3.0V to 3.6V supply 700 1000
Rise Time (Note 4) t
R
4.5V to 5.5V supply 700
ns
3.0V to 3.6V supply 200 300
Fall Time (Note 4) t
F
4.5V to 5.5V supply 300
ns
Driver On-Time Driver asserting high or low 1750 ns
Driver Active Termination Driver asserting high or low 60 
TRANSITION SENSING
Level-Sense Filter Delay Time to transition decision and assert 300 ns
Holdoff Time t
HOLDOFF
Data/clock sensing off during this period 2.5 μs
LVTTL/LVCMOS CONTROL INPUTS (DRVR_EN, MODE)
Input-High Voltage V
IH
2.0 V
Input-Low Voltage V
IL
0.8 V
Input-High Current I
IH
V
IH(MIN)
< V
IN
-1 +1 μA
Input-Low Current I
IL
V
IN
< V
IL(MAX)
-1 +1 μA
Note 1: While the MAX3816A is operable over the continuous range of 3.0V to 5.5V, the DDC application requires V
CC
connection to
DDC +5V.
Note 2: All levels in the cable side clock and data I/O are referenced to GND_REF, unless otherwise noted.
Note 3: All levels in the display side clock and data I/O are referenced to V
SS
, unless otherwise noted.
Note 4: Rise time measured 30% to 70%; fall time measured 70% to 30%. Load range is 60pF to 3000pF on source side, and 10pF
to 400pF on display side. Pullup resistors are chosen to supply I
2
C maximum of 3mA when asserting low state.
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.0V to +5.5V, V
DD
= +3.0V to +5.5V, T
A
= 0°C to +70°C. Typical values are at T
A
= +25°C, V
CC
= +5.0V, V
DD
= +3.3V,
unless otherwise noted.)
I
CC
vs. V
CC
MAX3816A toc01
V
CC
(V)
I
CC
(mA)
5.255.004.75
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
4.50 5.50
100kbps DATA, 100kHz CLOCK,
INCLUDES 3.3kΩ PULLUP RESISTORS
CABLE C
LOAD
= 3000pF
CABLE C
LOAD
= 60pF
I
DD
vs. V
DD
MAX3816A toc02
V
DD
(V)
I
DD
(mA)
5.04.54.03.5
1
2
3
4
5
6
7
8
9
10
0
3.0 5.5
100kbps DATA, 100kHz CLOCK, INCLUDES
3.3kΩ PULLUP RESISTORS FOR 5V SUPPLY
RANGE AND 2.2kΩ PULLUP RESISTORS FOR
3.3V SUPPLY RANGE
DISPLAY C
LOAD
= 330pF
DISPLAY C
LOAD
= 10pF
MAX3816A toc03
1V/div
2μs/div
3.3kΩ PULLUP RESISTOR AT EACH END OF CABLE.
PULLDOWN SOURCE: 25Ω CMOS SWITCH SIGNAL
INITIATED AND MEASURED AT REMOTE SOURCE.
CLOCK_C TRANSIENT RESPONSE
WITH AND WITHOUT MAX3816A, 30m CABLE LOAD
(2350pF)
WITH
MAX3816A
WITHOUT
MAX3816A
Typical Operating Characteristics
(V
CC
= +5.0V, V
DD
= +3.3V, T
A
= +25°C, unless otherwise noted.)