MAX3816ACUE+ Maxim Integrated Products, MAX3816ACUE+ Datasheet - Page 12

• Manufacturer Part Number: MAX3816ACUE+
• Description: IC I2C 2WIRE EXTENDER 16-TSSOP
• Manufacturer: Maxim Integrated Products
• Type: DDC (Digital Down Converter) Extenderr

Specifications of MAX3816ACUE+

• Applications: HD Displays, DVI/HDMI
• Mounting Type: Surface Mount
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

I
HDMI, and VGA Interfaces
A single MAX3816A is designed to achieve full
100kbps operation over 60m (200ft) of cable.
When inserted at the front-end of a display, the source
side of the MAX3816A should be powered by the
source V
display-side V
play supply (typically 3.3V) to level-shift and diminish
the effects of supply noise and offset between source
and display (Figure 5). Supply decoupling capacitors of
at least 10µF should be connected close to the
MAX3816A between GND_REF and V
between GND_REF and V
Figure 5. Typical In-Display Application Circuit
12
2
C 2-Wire Extender for DDC in DVI,
SHIELD GNDS
______________________________________________________________________________________
LONG CABLE FROM VIDEO SOURCE:
Use Single MAX3816A at Display Side
DDC GND
DVI, HDMI, OR M1 CONNECTOR
DDC SDA
DDC SCL
DDC +5V
CC
CABLE UP TO 60m (200ft)
In-Display Application, Series Mode
(typically 5V) and ground (GND_REF). The
DD
Applications Information
should be powered by the local dis-
47kΩ
CC
.
10μF
10μF
47kΩ
V
CC
SS
, as well as
V
CLOCK_C
DATA_C
GND_REF
CC
DISPLAY CIRCUIT BOARD
GROUND PLANE
MAX3816A
• Long cable reach.
• The MAX3816A acts as a buffer between source and
• The MAX3816A can be turned off (DRVR_EN assert-
• Multiple MAX3816As can be used in parallel as an
When using the level-shifter feature, as shown, and assum-
ing the display 3.3V supply is off when the display is off,
the Display EDID Prom will not be able to communicate to
source DDC. If required, the solution is to either place a 5V
EDID Prom on the source side of the MAX3816A or derive
the 3.3V V
CLOCK_D
DRVR_EN
display. Hence, source reflections are isolated to the
source side of the MAX3816A, protecting display cir-
cuits from reflections (stair-step waveforms).
ed low) to isolate source and display buses. The dis-
play bus can then operate independently of
source-cable loading or malfunctions.
input mux to display, with only one “on” at a time.
DATA_D
MODE
MAX3816A In-Display, Series Mode Advantages
V
V
DD
SS
DD
V
V
from the DDC +5V supply.
SS
DD
OR V
V
DD
SS
2.2kΩ
1μF
(SEE DESCRIPTION)
2.2kΩ
REFERENCE TO 3.3V
DISPLAY I
Consideration
(See Figure 5)
2
DISPLAY 3.3V
I
I
DISPLAY GND
C BUS
2
2
C SCL
C SDA