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PDF SPFD5408A Data sheet ( Hoja de datos )
| Número de pieza | SPFD5408A | |
| Descripción | 720-channel 6-bit Source Driver | |
| Fabricantes | ORISE | |
| Logotipo |  |
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SPFD5408A
720-channel 6-bit Source Driver with
System-on-chip for Color
Amorphous TFT-LCDs
Preliminary
DEC. 20, 2006
Version 0.1
ORISE Technology reserves the right to change this documentation without prior notice. Information provided by ORISE Technology is believed to be
accurate and reliable. However, ORISE Technology makes no warranty for any errors which may appear in this document. Contact ORISE Technology to
obtain the latest version of device specifications before placing your order. No responsibility is assumed by ORISE Technology for any infringement of patent
or other rights of third parties which may result from its use. In addition, ORISE products are not authorized for use as critical components in life support
devices/ systems or aviation devices/systems, where a malfunction or failure of the product may reasonably be expected to result in significant injury to the
user, without the express written approval of ORISE.
Free Datasheet http://www.datasheet-pdf.com/
1 page  
SPFD5408A
720-CHANNEL DRIVER WITH SYSTEM-ON-CHIP (SOC)
FOR COLOR AMORPHOUS TFT LCD
1. GENERAL DESCRIPTION
The SPFD5408A, a 262144-color System-on-Chip (SoC) driver
LSI designed for small and medium sizes of TFT LCD display, is
capable of supporting up to 240xRGBx320 in resolution which can
be achieved by the designated RAM for graphic data. The
720-channel source driver has true 6-bit resolution, which
generates 64 Gamma-corrected values by an internal D/A
converter.
The SPFD5408A is able to operate with low IO interface power
supply up to 1.6V and incorporate with several charge pumps to
generate various voltage levels that form an on-chip power
management system for gate driver and source driver.
The built-in timing controller in SPFD5408A can support several
interfaces for the diverse request of medium or small size portable
display. SPFD5408A provides system interfaces, which include
8-/9-/16-/18-bit parallel interfaces and serial interface (SPI), to
configure system. Not only can the system interfaces be used to
configure system, they can also access RAM at high speed for still
picture display. In addition, the SPFD5408A incorporates 6, 16,
and 18-bit RGB interfaces for picture movement display. The
SPFD5408A also supports a function to display eight colors and a
standby mode for power control consideration.
2. FEATURE
n One-chip solution for amorphous TFT-LCD.
n Supports resolution up to 240xRGBx320, incorporating a
720-channel source driver and a 320-channel gate driver
n Outputs 64 γ -corrected values using an internal true 6-bit
resolution D/A converter to achieve 262K colors
n Built-in 172800 bytes internal RAM
n Line Inversion AC drive / frame inversion AC drive
n System interfaces
− High-speed interfaces to 8-, 9-, 16-, and 18-bit parallel ports
− Serial Peripheral Interface (SPI)
n Interfaces for moving picture display
− 6-, 16-, and 18-bit RGB interfaces
n Diverse RAM accessing for functional display
− Window address function to display at any area on the
screen via a moving picture display interface
− Window address function to limit the data rewriting area
and reduce data transfer
− Moving and still picture can display at the same time
− Vertical scrolling function
− Partial screen display
n Power supply
− Logic power supply voltage (Vcc): 2.5 ~ 3.3 V
− I/O interface supply voltage (IOVcc): 1.65 ~ 3.3 V
− Analog power supply voltage (Vci): 2.5 ~ 3.3 V
n Resize function( x 1/2, x 1/4)
n On-chip power management system
− Power saving mode (standby / 8-color mode, etc)
− Low power consumption structure for source driver.
n Built-in Charge Pump circuits
− Source driver voltage level : DDVDH-GND=4.5V ~ 6V.
− Gate driver voltage level (VGH, VGL)
VGH = 10.0V ~20.0V
VGL = -4.5V ~ -13.5V
VGH – VGL < 28.0V
− Built-in internal oscillator and hardware reset
n Built–in One-Time-Programming (OTP) function for VCOM
amplitude and VcomH voltage adjustment. User identification
code,4 bits, VCOM level adjustment, 5 bits x 2 sets
3. ORDERING INFORMATION
Product Number
SPFD5408A-C
Package Type
Chip Form with Gold Bump
© ORISE Technology Co., Ltd.
Proprietary & Confidential
5
DEC. 20, 2006
Preliminary Version: 0.1
Free Datasheet http://www.datasheet-pdf.com/
5 Page 
SPFD5408A
Signal
VCOMH
VCOML
VCOMR
VGS
VCC
GND
RGND
VDD
IOVCC
IOGND
AGND
VCI
VCILVL
Misc. Signal
Test/Dummy
Pin No.
1
1
1
1
1
1
1
1
1
1
1
1
1
I/O Connected with Function
O
Stabilizing
The High level of VCOM amplitude. The output level can be adjusted by either
capacitor
external resistor (VCOMR) or electronic volume. Make sure to connect to
stabilizing capacitor.
O
Stabilizing
The Low level of VCOM amplitude. The output level can be adjusted by
capacitor
instruction (VDV bits). VCOML = (VCL+0.5)V ~ 0V. Make sure to connect to
stabilizing capacitor.
I Variable resistor Connect a variable resistor when adjusting the VCOMH level between
or open
VREG1OUT and GND.
I
GND
Reference level for the grayscale voltage generating circuit.
- Power supply Internal logic power: VCC = 2.5V ~3.3V. VCC > IOVCC.
- Power supply Internal logic GND: GND = 0V.
- Internal RAM GND. RGND must be at the same electrical potential as GND. In
Power supply
case of COG, connect to GND on the FPC to prevent noise.
O
Stabilizing
Internal logic regulator output, which is used as the power supply to internal
capacitor
logic. Connect a stabilizing capacitor.
- Power supply Power supply to the interface pins: RESET*, CS*, WR, RD*, RS, DB17-0,
VSYNC, HSYNC, DOTCLK, ENABLE. IOVCC = 1.65V ~ 3.3V. VCC ≥IOVCC.
In case of COG, connect to VCC on the FPC if IOVCC=VCC, to prevent noise.
- Power supply GND for the interface pins: RESET*, CS*, WR, RD*, RS, DB17-0, VSYNC,
HSYNC, DOTCLK, ENABLE. IOGND = 0V. In case of COG, connect to GND
on the FPC to prevent noise.
- Power supply Analog GND (for logic regulator and liquid crystal power supply circuit): AGND
= 0V. In case of COG, connect to GND on the FPC to prevent noise.
I Power supply to the liquid crystal power supply analog circuit. Connect to an
Power supply
external power supply of 2.5V ~ 3.3V.
I Reference power VCILVL must be at the same electrical potential as VCI. VCILVL = 2.5V ~ 3.3V.
supply
Connect to external power supply. In case of COG, connect to VCI on the FPC
to prevent noise.
O Open
Test pins. Leave them open. SPFD5408A use these pins to do self-test.
No any signal on panel can cross these pins, otherwise function fail.
© ORISE Technology Co., Ltd.
Proprietary & Confidential
11
DEC. 20, 2006
Preliminary Version: 0.1
Free Datasheet http://www.datasheet-pdf.com/
11 Page | ||
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