FPD33684 Datasheet, PDF (1/15 Pages) National Semiconductor (TI) – Low Power, Low EMI, TFT-LCD Column Driver with RSDS™ Inputs, 64 Grayshades, and 384 Outputs for XGA/SXGA Applications

May 2002
FPD33684A/ FPD33684B
Low Power, Low EMI, TFT-LCD Column Driver with
RSDS^™ Inputs, 64 Grayshades, and 384 Outputs for
XGA/SXGA Applications
General Description
The FPD33684 Column Driver is a direct drive, 64 gray level,
384 output, TFT-LCD column driver with an RSDS™ data
interface. It provides the capability to display 262,144 colors
(18-bit color) with a large dynamic output range for twisted
nematic applications. When used in a bank with other
FPD33684 column drivers, the FPD33684 can support both
XGA (8 drivers) or SXGA (10 drivers) applications. Output
voltages are programmably gamma corrected to provide a
direct mapping between digital video and LCD panel bright-
ness.
An RSDS™ (Reduced Swing Differential Signaling) interface
is used between the timing controller and the column driver
to minimize EMI and reduce power.
The FPD33684 offers a low power, low EMI column driver
solution with direct-drive dynamic range and dot-inversion
addressing.
Features
n RSDS™ (Reduced Swing Differential Signaling) data
bus for low power, reduced EMI and small PCB foot
print
n Up to 85MHz clock
n Supports both XGA and SXGA timing
n Supports notebook and monitor applications
n Smart Charge Conservation for low power consumption
n 64 Gray levels per color (18-bit color)
n Supports both Dot and N-Line inversion
n Externally programmable gamma characteristic
n Very low offsets for artifact-free images
n High voltage outputs for high contrast in a large range of
display panel applications
n Optional, high current, repair line buffers
n Available in 2 common gamma reference curves
Ordering Information
Part Number
FPD33684
Gamma Curve
A or B
Custom TCP #
XX(Note 1)
Note 1: Custom TCP # is assigned by National Semiconductor for each custom TCP design
System Diagram
Package Suffix
CT
© 2002 National Semiconductor Corporation DS200113
DS200113-1
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