National Products DS90C3202 - Manual (Page 2)

Typical Application Diagram
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FIGURE 2. LCD Panel Application Diagram
Functional Description
The DS90C3201 and DS90C3202 are a dual 10-bit color
Transmitter and Receiver FPD-Link chipset designed to
transmit data at clocks speeds from 8 to 135 MHz.
DS90C3201 and DS90C3202 are designed to interface be-
tween the digital video processor and the display using a
LVDS interface. The DS90C3201 transmitter serializes 2
channels of video data (10-bit each for RGB for each chan-
nel, totaling 60 bits) and control signals (HSYNC, VSYNC,
DE and two user-defined signals) along with clock signal to
10 channels of LVDS signals and transmits them. The
DS90C3202 receiver converts 10 channels of LVDS signals
into parallel signals and outputs 2 channels of video data
(10-bit each for RGB for each channel, totaling 60 bits) and
control signals (HSYNC, VSYNC, DE and two user-defined
signals) along with clock signal. The dual high speed LVDS
channels supports single pixel in-single pixel out and dual
pixel in-dual pixel out transmission modes. The FPD-Link
chipset is suitable for a variety of display applications includ-
ing LCD Monitors, LCD TV, Digital TV, and DLP TV, and
Plasma Display Panels.
Using a true 10-bit color depth system, the 30-bit RGB color
produces over 1.07 billion colors to represent High Definition
(HD) displays in their most natural color, surpassing the
maximum 16.7 million colors achieved by 6/8-bit color con-
ventionally used for large-scale LCD televisions and LCD
monitors.
LVDS RECEIVER
The LVDS Receiver receives input RGB video data and
control signal timing.
SELECTABLE OUTPUT DATA STROBE
The Receiver output data edge strobe can be latched on the
rising or falling edges of clock signal. The dedicated RFB pin
is used to program output strobe select on the rising edge of
RCLK or the falling edge of RCLK.
2-WIRE SERIAL COMMUNICATION INTERFACE
Optional Two-Wire serial interface programming allows fine
tuning in development and production environments. The
Two-Wire serial interface provides several capabilities to
reduce EMI and to customize output timing. These capabili-
ties are selectable/programmable via Two-Wire serial inter-
face: Programmable Skew Rates, Progress Turn On Func-
tion, Input/Output Channel Control.
PROGRAMMABLE SKEW RATES
Programmable edge rates allow the LVCMOS/LVTTL Data
and Clock outputs to be adjusted for better impedance
matching for noise and EMI reduction. The individual output
drive control registers for Rx data out and Rx clock out are
programmable via Two-Wire serial interface.
PROGRESS TURN ON FUNCTION
Progress Turn On (PTO) function aligns the two output chan-
nels of LVCMOS/LVTLL in either a non-skew data format
(simultaneous switching) or a skewed data format (stag-
gered). The skewed format delays the selected channel data
and staggers the outputs. This reduces the number of out-
puts switching simultaneously, which lowers EMI radiation
and minimizes ground bounce. Feature is controlled via
Two-Wire serial interface.
INPUT/OUTPUT CHANNEL CONTROL
Full independent control for input/output channels can be
disabled to minimize power supply line noise and overall
power dissipation. Feature is configured via Two-Wire serial
interface
DS90C3202
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