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National Semiconductor Electronic Components Datasheet

FPD33584 Datasheet

TFT-LCD Column Driver

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January 2003
FPD33584
Low Power, Low EMI, TFT-LCD Column Driver with
RSDS Inputs, 64 Grayshades, and 384 Outputs for
XGA/SXGA Applications
General Description
The FPD33584 Column Driver is a direct drive, 64 gray level,
384 output, TFT-LCD column driver with an RSDSdata
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
FPD33584 column drivers, the FPD33584 can support XGA
(8 drivers) or SXGA (10 drivers) applications. Output volt-
ages are gamma corrected to provide a direct mapping
between digital video and LCD panel brightness. The 85MHz
operating frequency allows the FPD33584 to meet the re-
quirement of high refresh rate applications (i.e. XGA moni-
tors with a 75Hz refresh rate).
An RSDS (Reduced Swing Differential Signaling) interface is
used between the timing controller and the column driver to
minimize EMI and reduce power.
Features
n RSDS (Reduced Swing Differential Signaling) data bus
for low power, reduced EMI and small PCB foot print
n 85MHz maximum operating frequency at VDD1=3.0V
(70MHz at VDD1=2.7V)
n Pin compatible with Samsung S6C0666
n Ideal for XGA and SXGA applications
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 Four externally programmable gamma curves
n Low offset, High voltage outputs for high contrast in a
large range of display panel applications
n Optional, high current, repair amplifiers
System Diagram
© 2003 National Semiconductor Corporation DS200432
20043201
www.national.com


National Semiconductor Electronic Components Datasheet

FPD33584 Datasheet

TFT-LCD Column Driver

No Preview Available !

Absolute Maximum Ratings (Note 1)
Analog Supply, (VDD2) (Note 2)
Logic Supply, (VDD1) (Note 2)
Low-Polarity RDAC Reference
Voltages, (VGMA6 to VGMA10)
(Note 2)
High-Polarity RDAC Reference
Voltages, (VGMA1 to VGMA5)
(Note 2)
RDAC Current (All Gamma
Voltage Taps), (IGMA to IGMA10)
Input Voltage (Digital Logic), (VIN)
(Note 2)
Output Voltage, (VOUT) (Note 2)
Output Current (Analog), (IOUT)
−0.3V to +11.5V
−0.3V to +5.0V
−0.3V to 0.5VDD2
0.5VDD2 − 1.0V to
VDD2 + 0.3V
−2.5mA to 2.5mA
−0.3V to VDD1 +
0.3V
−0.3V to VDD2 +
0.3V
−7mA to +7mA
Storage Temperature Range, (TS)
−55˚C to +125˚C
Note 1: “Absolute Maximum Ratings” are those values beyond which the
safety of the device cannot be guaranteed. They are not meant to imply that
the devices should be operated at these limits. The table of “Electrical
Characteristics” specifies conditions of device operation.
Note 2: Absolute voltages referenced to VSS1 = VSS2 = 0.0V.
Recommended Operating
Conditions
Logic Supply Voltage
(VDD1)
Supply Voltage (VDD2)
Operating Temperature
(TA)
Min Typ Max Units
2.7 3.3 3.6
V
7.5
10.5
V
−10 +25 +70 ˚C
DC Electrical Characteristics
Digital Electrical Characteristics
Symbol
VIH
VIL
VOH
Parameter
Logic Input High Voltage
Logic Input Low Voltage
Logic Output High Voltage
VOL Logic Output Low Voltage
IDD1 Logic Current
IIH Input Leakage
IIL Input Leakage
CIN Input Capacitance
Conditions
IOH = −0.5mA
IOL = 0.5mA
(Note 3)
VDD1 = 3.6V, VIN = 3.6V
VDD1 = 3.6V, VIN = 0V
All logic pins
Min
Typ
Max
Units
0.7 VDD1
VDD1
0.5
0.3 VDD1
V
V
V
0.5 V
8.0 12.0 mA
-1 1 µA
-1 1 µA
2 pF
Note 3: CLK frequency = 67MHz, VDD1 = 3.3V, VSS1 = VSS2 = 0.0V, line time = 18µs, data = all 1’s for 4 lines followed by all 0’s for 4 lines.
RSDS Characteristics
Symbol
Parameter
VIHRSDS RSDS High Input Voltage
VILRSDS RSDS Low Input Voltage
VCMRSDS
IDL
RSDS Common Mode Input
Voltage Range
RSDS Input Leakage Current
Conditions
VCMRSDS = 1.2V (Note 4) see
Figure 1
VCMRSDS = 1.2V (Note 4) see
Figure 1
VIHRSDS = +100mV, VILRSDS =
−100mV (Note 5) see Figure 1
DxxP, DxxN, CLKP, CLKN
Note 4: VCMRSDS = (VCLKP + VCLKN)/2 or (VDxxP + VDxxN)/2.
Note 5: VIHRSDS and VILRSDS are referenced to VCMRRSDS
Min
Typ
Max
Units
100 200
mV
VSS1 +
0.1
−10
−200
−100
VDD1
1.3
10
mV
V
µA
www.national.com
2


Part Number FPD33584
Description TFT-LCD Column Driver
Maker National Semiconductor
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