BUF08821中文資料具有集成雙列存儲器的 8 通道伽瑪電壓發(fā)生器和 Vcom 校準(zhǔn)器數(shù)據(jù)手冊TI規(guī)格書

描述 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.

特性 Features

? 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

簡介

BUF08821屬于開發(fā)板套件編程器的評估演示板及套件。由TI制造生產(chǎn)的BUF08821評估和演示板及套件該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過驗(yàn)證的實(shí)施環(huán)境中評估某些重點(diǎn)器件的性能或特性。評估方法通常有完善的文檔說明，并且視乎具體情況由評估軟件提供支持。產(chǎn)品通常由印刷電路板組成，板上已裝有重點(diǎn)器件以及必要或有用的支持元器件，另外也可能包括其他組件，例如電纜或電源。對于數(shù)量特別多或類別獨(dú)特的器件類別(如 ADC、DAC 和開關(guān)模式電源)，評估平臺可組合為一個(gè)單獨(dú)的產(chǎn)品系列。