數(shù)字可編程LCD gamma基準(zhǔn)發(fā)生器，提供數(shù)字可調(diào)電壓基準(zhǔn)

MAX5679數(shù)字可編程LCD gamma基準(zhǔn)發(fā)生器可提供18路緩沖通道，為L(zhǎng)CD列驅(qū)動(dòng)器提供偏置。器件能夠從四路外部參考電壓產(chǎn)生14路8位可編程gamma基準(zhǔn)輸出，另外四路緩沖器用于外部參考電壓的緩沖輸出?？赏ㄟ^I2C串口對(duì)14路gamma緩沖器輸出范圍高端和低端進(jìn)行獨(dú)立編程。\n MAX5679提供數(shù)字可編程基準(zhǔn)(DVR)，具有7位可調(diào)節(jié)吸入電流，用于設(shè)置LCD公共背板(VCOM)電壓。MAX5679帶有上電復(fù)位(POR)功能，在初始上電時(shí)將全部14路可編程gamma輸出配置到預(yù)設(shè)電平。\n MAX5679采用5mm x 5mm、32引腳TQFN封裝，工作在-40°C至+85°C擴(kuò)展級(jí)溫度 \n? 7位可調(diào)節(jié)VCOM校準(zhǔn)器(DVR) \n? 14路可編程gamma輸出用于LCD驅(qū)動(dòng) \n? 列驅(qū)動(dòng)器IC \n? 8位DAC分辨率，用于設(shè)置高端和低端輸出 \n? 最大輸出擺幅為(AVDD - 0.2V) (OUT1–OUT7) \n? 最低輸出擺幅為(GND + 0.2V) (OUT8–OUT14) \n? 四路獨(dú)立的參考電壓輸入 \n? 四路獨(dú)立的參考電壓緩沖輸出 \n? 9V至20V模擬電源電壓 \n? 2V至5.5V數(shù)字電源電壓 \n? 400kHz I2C兼容串口 \n? 引腳可選的I2C地址，允許同時(shí)掛接兩個(gè)從ID \n? 向下兼容于MAX5678;

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Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference

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