BUF08630 Datasheet, PDF (1/8 Pages) Texas Instruments – Programmable Gamma-Voltage Generator

BUF08832
BUF08630
www.ti.com
SBOS535 – OCTOBER 2010
Programmable Gamma-Voltage Generator and High Slew Rate V_COM
with Integrated Two-Bank Memory plus 1/2 AVDD Topology
FEATURES
1
•2 10-Bit Resolution
• 8-Channel P-Gamma
• 1-Channel P-V_COM
• High Slew Rate V_COM: 45V/ms
• 16x Rewritable Nonvolatile Memory
• Two Independent Pin-Selectable Memory
Banks
• Rail-to-Rail Output:
– 300mV Min Swing-to-Rail (10mA)
– > 300mA Max I_OUT
• Low Supply Current
• Supply Voltage: 9V to 20V
• Digital Supply: 2V to 5.5V
• Two-Wire Interface:
– Supports 400kHz and 3.4MHz
• 1/2 AVDD Capability
APPLICATIONS
• TFT-LCD Reference Drivers
DESCRIPTION
The BUF08630 offers eight programmable gamma
channels and one programmable V_COM channel.
The final gamma and V_COM values can be stored in
the on-chip, nonvolatile memory. To allow for
programming errors or liquid crystal display (LCD)
panel rework, the BUF08630 supports up to 16 write
operations to the on-chip memory.
The BUF08630 has two separate memory banks,
allowing simultaneous storage of two different gamma
curves to facilitate switching between gamma curves.
All gamma and V_COM channels offer a rail-to-rail
output that typically swings to within 150mV of either
supply rail with a 10mA load. All channels are
programmed using a two-wire interface that supports
standard operations up to 400kHz and high-speed
data transfers up to 3.4MHz.
For the complete BUF08630 data sheet, contact your
TI representative.
RELATED PRODUCTS
FEATURES
22-channel gamma correction buffer
16-channel gamma correction buffer
12-channel gamma correction buffer
18-/20-channel programmable buffer, 10-Bit, V_COM
18-/20-Channel programmable buffer with memory
Programmable V_COM driver
22V supply, traditional gamma buffers
High-resolution, fully-programmable LCD bias IC for TV
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1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated