參數(shù)資料
型號: FPD33584
廠商: National Semiconductor Corporation
英文描述: Low Power, Low EMI, TFT-LCD Column Driver with RSDS Inputs, 64 Grayshades, and 384 Outputs for XGA/SXGA Applications
中文描述: 低功耗,低EMI,TFT - LCD的輸入欄與區(qū)特別職務(wù)隊,64 Grayshades,和384的XGA輸出驅(qū)動器/ SXGA應(yīng)用
文件頁數(shù): 9/30頁
文件大小: 294K
代理商: FPD33584
Functional Description
(Continued)
When POL is low, odd numbered outputs (1, 3, 5, . . . 383)
are controlled by VGMA6 through VGMA10 and even num-
bered outputs are controlled by VGMA1 through VGMA5.
When POL is high, odd numbered outputs are controlled by
VGMA1 through VGMA5 and even numbered outputs are
controlled by VGMA6 through VGMA10. The POL signal for
line #n is sampled at the rising edge of CLK1 on line #n1.
DIO1/DIO2
Data Loading Enable 1 and 2 (I/O)
The DIO1 and DIO2 pins allow several FPD33584 column
drivers to be daisy chained together. The start pulse (SP or
STH) from the timing controller is connected to the input
DIOx pin on the first column driver in the chain. The input
DIO for the remaining column drivers in the chain are con-
nected to the output DIO from the preceding column driver.
The SHL pin controls whether DIO1 or DIO2 is configured as
the input.
If SHL is high, then the DIO1 pin is configured as an input
and the DIO2 pin as an output. If SHL is low, the DIO2 pin is
configured as an input and the DIO1 pin as an output.
The input DIOx pulse is latched on the falling edge of CLKP
DATPOL
Digital Data Invert (input)
When DATPOL is high, RSDS data is inverted. The DATPOL
pin can be tied either high or low through connection to a
neighboring pin on a custom package eliminating the need to
connect the pin to the PCB.
SHL
Data Shift Direction (input)
The SHL pin controls the data load direction. When SHL is
high, the data is loaded from output 1 to output 384, DIO1 is
configured as an input, and DIO2 is configured as an output.
When SHL is low, the data is loaded from output 384 to
output 1, DIO2 is configured as an input, and DIO1 is con-
figured as an output. The SHL pin can be tied off in the
custom package, eliminating the need to connect it to the
PCB.
RPI1/ RPI2
Repair Amp Input 1 and 2 (input)
The input signal for the repair line buffers. These buffers are
optional and when not used, the input should be tied to
ground. RPI1 and RPI2 can be tied to ground with a connec-
tion in the package, eliminating the need to connect them to
the PCB.
RPO1/ RPO2
Repair Amp Output 1 and 2 (output)
The output of the repair line buffers. These outputs are
current buffered copies of their respective inputs. When not
in use, RPO1 and RPO2 can be left unconnected.
TIME0/ TIME1
Charge Share Time Select Pins (input)
The TIME0 and TIME1 pins define the length of charge
share time.
Table 1
lists the charge share time options
defined by TIME0 and TIME1. Both of these pins have
internal pull-down resistors and default to a logic low state.
They can also be tied high in the package, eliminating the
need to connect them to the PCB.
V
GMA1
–V
GMA10
RDAC References (input)
The reference voltages to the upper and lower RDACs used
to control the inverse gamma transfer function of the driver.
Option - Any or all of the inputs V
through V
and
V
GMA7
through V
GMA9
can be left undriven (floating).
V
DD1
Digital Voltage Supply (power)
Positive supply voltage for the digital logic functions of the
driver. Nominally 3.3V.
V
DD2
Analog Voltage Supply (power)
Positive supply voltage for the analog functions of the driver.
Nominally between 8.0 and 10.0V
V
SS1
Digital Ground (power)
Digital ground reference voltage. Typically tied to V
SS2
on
the PCB.
V
SS2
Analog Ground (power)
Analog ground reference voltage. Typically tied to V
SS1
on
the PCB
F
www.national.com
9
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