AD9887A Analog Devices, Inc., AD9887A Datasheet - Page 16

• Manufacturer Part Number: AD9887A
• Description: Dual Interface For Flat Panel Displays
• Manufacturer: Analog Devices, Inc.

AD9887A
PIN FUNCTION DETAILS—DIGITAL INTERFACE
Digital Video Data Inputs
Rx0+
Rx0−
Rx1+
Rx1−
Rx2+
Rx2−
Digital Video Clock Inputs
RxC+
RxC−
Termination Control
R
TERM
Digital Differential Input Channel 0 True
Digital Differential Input Channel 0 Complement
Digital Differential Input Channel 1 True
Digital Differential Input Channel 1 Complement
Digital Differential Input Channel 2 True
Digital Differential Input Channel 2 Complement
Digital Differential Data Clock True
Digital Differential Data Clock Complement
These pins receive the differential, low voltage,
swing input pixel clock from a digital graphics
transmitter.
Internal Termination Set Pin
This pin is used to set the termination resistance for
all digital interface high speed inputs. To set this pin,
place a resistor of 10 times the desired input termi-
nation resistance between this pin (Pin 53) and the
ground supply. Typically, the value of this resistor
should be 500 Ω.
These pins receive three pairs of differential, low
voltage, swing input pixel data from a digital
graphics transmitter.
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Data Enable
DE
HDCP
DDCSCL HDCP Slave Serial Port Data Clock
DDCSDA HDCP Slave Serial Port Data I/O
MCL
MDA
CTL
Data Enable
This pin outputs the state of data enable (DE). The
AD9887A decodes DE from the incoming stream of
data. The DE signal is high during active video and
low when there is no active video.
For use in communicating with the HDCP-enabled
DVI transmitter.
For use in communicating with the HDCP-enabled
DVI transmitter.
HDCP Master Serial Port Data Clock
Connects the EEPROM for reading the encrypted
HDCP keys.
HDCP Master Serial Port Data I/O
Connects the EEPROM for reading the encrypted
HDCP keys.
Digital Control Outputs
These pins output the control signals for the red and
green channels. CTL0 and CTL1 correspond to the
red channel input, and CTL2 and CTL3 correspond
to the green channel input.