BUF16821開發(fā)板套件編程器的評(píng)估演示板及套件規(guī)格書PDF中文資料

BUF16821屬于開發(fā)板套件編程器的評(píng)估演示板及套件。由德州儀器制造生產(chǎn)的BUF16821評(píng)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(píng)估某些重點(diǎn)器件的性能或特性。評(píng)估方法通常有完善的文檔說明，并且視乎具體情況由評(píng)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(duì)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(píng)估平臺(tái)可組合為一個(gè)單獨(dú)的產(chǎn)品系列。

1 Features

1? AEC-Q100 Qualified with:

– Temperature Grade 3: –40°C to 85°C

– HBM ESD Classification 2

– CDM ESD Classification C4B

? 16-Channel P-Gamma, 2-Channel P-VCOM, 10-

Bit Resolution

? 16x Rewritable Nonvolatile Memory

? Two Independent Pin-Selectable Memory Banks

? Rail-to-Rail Output:

– 300-mV (Min) Swing-to-Rail (10 mA)

– > 300-mA (Max) I OUT

? Supply Voltage: 9 V to 20 V

? Digital Supply: 2 V to 5.5 V

? I2C? Interface: Supports 400 kHz and 2.7 MHz

2 Application

TFT-LCD Reference Drivers

3 Description

The BUF16821-Q1 offers 16 programmable gamma

channels and two programmable VCOM channels. 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 device supports up to 16 write

operations to the on-chip memory.

The device 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 150 mV of either supply

rail with a 10-mA load. All channels are programmed

using an I2C interface that supports standard

operations up to 400 kHz and high-speed data

transfers up to 2.7 MHz.

The device 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 20 V. The

device is offered in an HTSSOP-28 PowerPAD?

package, and is specified from –40°C to +85°C.