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BUF20800 датащи(PDF) 1 Page - Texas Instruments |
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BUF20800 датащи(HTML) 1 Page - Texas Instruments |
1 / 31 page BUF08832 Analog (9Vto20V) Digital (2.0Vto5.5V) BKSEL A0 SCL SDA V COM ControlIF OUT7 OUT8 BUF08832 OUT1 OUT2 1 V COM-FB GND(V ) COM V (V S COM) BUF08832 www.ti.com SBOS476C – AUGUST 2009 – REVISED JULY 2011 Programmable Gamma-Voltage Generator and High Slew Rate VCOM with Integrated Two-Bank Memory Check for Samples: BUF08832 1 FEATURES DESCRIPTION The BUF08832 offers eight programmable gamma 23 • 10-BIT RESOLUTION channels and one programmable VCOM channel. • 8-CHANNEL P-GAMMA The final gamma and VCOM values can be stored in • 1-CHANNEL P-VCOM the on-chip, nonvolatile memory. To allow for • HIGH SLEW RATE VCOM: 45V/μs programming errors or liquid crystal display (LCD) • 16x REWRITABLE NONVOLATILE MEMORY panel rework, the BUF08832 supports up to 16 write • TWO INDEPENDENT PIN-SELECTABLE operations to the on-chip memory. MEMORY BANKS The BUF08832 has two separate memory banks, • RAIL-TO-RAIL OUTPUT allowing simultaneous storage of two different gamma – 300mV Min Swing-to-Rail (10mA) curves to facilitate switching between gamma curves. – > 300mA Max IOUT All gamma and VCOM channels offer a rail-to-rail • LOW SUPPLY CURRENT output that typically swings to within 150mV of either • SUPPLY VOLTAGE: 9V to 20V supply rail with a 10mA load. All channels are • DIGITAL SUPPLY: 2V to 5.5V programmed using a Two-Wire interface that supports standard operations up to 400kHz and • TWO-WIRE INTERFACE: Supports 400kHz and high-speed data transfers up to 3.4MHz. 3.4MHz The BUF08832 is manufactured using Texas APPLICATIONS Instruments ’ proprietary, state-of-the-art, high-voltage CMOS process. This process offers very dense logic • TFT-LCD REFERENCE DRIVERS and high supply voltage operation of up to 20V. The BUF08832 is offered in a HTSSOP-20 PowerPAD ™ package, and is specified from –40°C to +85°C. RELATED PRODUCTS FEATURES PRODUCT 22-Channel Gamma Correction Buffer BUF22821 16-Channel Gamma Correction Buffer BUF16821 12-Channel Gamma Correction Buffer BUF12800 18-/20-Channel Programmable Buffer, 10-Bit, VCOM BUF20800 18-/20-Channel Programmable Buffer with Memory BUF20820 Programmable VCOM Driver BUF01900 18V Supply, Traditional Gamma Buffers BUF11704 22V Supply, Traditional Gamma Buffers BUF11705 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. 2 PowerPAD is a trademark of Texas Instruments Incorporated. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2011, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Аналогичный номер детали - BUF20800 |
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Аналогичное описание - BUF20800 |
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