DatasheetsPDF.com

BUF08821

Texas Instruments
Part Number BUF08821
Manufacturer Texas Instruments
Description Programmable Gamma-Voltage Generator and Vcom Calibrator
Published Feb 25, 2020
Detailed Description BUF08821 BUF08821 www.ti.com SBOS438D – AUGUST 2008 – REVISED JULY 2011 Programmable Gamma-Voltage Generator and VCOM...
Datasheet PDF File BUF08821 PDF File

BUF08821
BUF08821

Overview
BUF08821 BUF08821 www.
ti.
com SBOS438D – AUGUST 2008 – REVISED JULY 2011 Programmable Gamma-Voltage Generator and VCOM Calibrator with Integrated Two-Bank Memory Check for Samples: BUF08821 FEATURES 1 •234 10-BIT RESOLUTION • 8-CHANNEL P-GAMMA • 1-CHANNEL P-VCOM • 16x REWRITABLE NONVOLATILE MEMORY • TWO INDEPENDENT PIN-SELECTABLE MEMORY BANKS • RAIL-TO-RAIL OUTPUT: 300mV Minimum Swing-to-Rail (10mA) > 300mA Maximum IOUT • LOW SUPPLY CURRENT • SUPPLY VOLTAGE: 9V to 20V • DIGITAL SUPPLY: 2V to 5.
5V • I2C™ INTERFACE: Supports 400kHz and 3.
4MHz Clock Frequency APPLICATIONS • TFT-LCD REFERENCE DRIVERS BKSEL Digital Analog (2.
0V to 5.
5V) (9V to 20V) 1 DESCRIPTION The BUF08821 offers eight programmable gamma channels plus one programmable VCOM channel.
The final gamma and VCOM values can be stored in the on-chip, nonvolatile memory.
To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF08821 supports up to 16 write operations to the on-chip memory.
The BUF08821 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves.
All gamma and VCOM 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 an I2C interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.
4MHz.
The BUF08821 is manufactured using Texas Instruments’ proprietary, state-of-the-art, high-voltage CMOS process.
This process offers very dense logic and HIGH supply voltage operation of up to 20V.
The BUF08821 is offered in a HTSSOP-20 PowerPAD™ package.
It is specified from –40°C to +85°C.
16x Nonvolatile Memory BANK0 16x Nonvolatile Memory BANK1 ¼ DAC Registers ¼ DAC Registers ¼ ¼ ¼ SDA SCL Control IF A0 OUT1 OUT2 OUT7 OUT8 VCOM BUF08821 RELATED PRODUCTS FEATURES 22-Channel Gamma Correction Buffer 16-Channel Gamma Correction Buffer 12-Channel Gamma Correction Buff...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)