Datasheet

Overview

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22 Saved Data Format ....................................................................................................... 22

23 Load File Prompt .......................................................................................................... 22

24 Run Batch Dialog.......................................................................................................... 23

25 Control Panel Window .................................................................................................... 24

26 Program OTP All Channels .............................................................................................. 25

27 BUF22821EVM-USB Board Schematic ................................................................................ 26

28 BUF22821EVM-USB PCB Top Layer (Component Layout) ......................................................... 27

1 Overview

The BUF22821 is a programmable gamma-voltage generator and V

COM

calibrator. This device offers 22

programmable gamma channels, two programmable V

COM

channels, and two static gamma channels,

making it ideal for 10-bit source TFT-LCD reference drivers.

The BUF22821EVM-USB is a platform for evaluating the performance of the BUF22821 under various

signal, reference, and supply conditions. This document gives a general overview of the

BUF22821EVM-USB, and provides a general description of the features and functions to be considered

while using this evaluation module.

BUF22821EVM-USB Evaluation Board and Software Tutorial SBOU117–September 2011

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