CXLC8983适用于TFT-LCD应用的8+1通道数字程控电压参考缓冲器由8个通道的缓冲电压发生器和1个通道用于VCOM参考电压补偿VCOM通道有10位数模转换器数字数据通过I2C接口编程

CXLC8983是适用于TFT-LCD应用的8+1通道数字程控电压参考缓冲器。它由8个通道的缓冲电压发生器和1个更大的通道用于VCOM参考电压补偿。每个gamma和VCOM通道都有自己的10位数模转换器，数字数据通过I2C接口编程，然后存储在集成的NVM中。NVM允许存储两组gamma和VCOM数据。数据集可以在两个寄存器组之间进行动态切换，在gamma曲线上得到快速变化。所有通道都能驱动大容量负载，并提供足够大的电流。

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXLC8983 is 8+1 channel digital programed voltage reference buffer suitable for TFT-LCD application. It consists of 8 channels buffered voltage generator for gamma curve adjustment and 1 greater channel for VCOM reference voltage compensation. Each gamma and VCOM channel has its own 10bit digital-to-analog converter, and the digital data is programed through I 2 C interface then store in the integrated NVM. The NVM allows two sets of gamma and VCOM data to be stored. The data sets can be dynamic switched between two register banks obtains rapid changes on gamma curve. All of the channels are capable of driving heavy capacitive loads and offering large current sufficiently. (VCOM: 100mA; Gamma: 25mA) The CXLC8983 is available in the QFN4X4-24 package

   产品特点 返回TOP

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„ Supply Operation Range : 7V to 20V 

„ 8+1 Channels : 

--- 8 Channel Rail-to-Rail Programmable Gamma Buffers: 

Š 10 Bits Resolution for Each Channel 

Š 25mA Output Current for Each Channel 

Š BK_SEL for Switching Stored Data Sets 

---1 Channel Rail-to-Rail VCOM Buffer: 

Š 7 Bits Adjustable Output 

Š ±100mA Output Current 

Š ±260mA Output Short-Circuit Current 

Š 20V/μs Slew Rate 

„ 2-Wire I2 C Slave Mode Interface 

„ Using One Control Pin Enable to Store Data into Non-Volatile Memory (NVM) 

„ Non-Volatile Memory (NVM) Store Setting (at Least 100 Re-Write Times) 

„ QFN4X4-24 Package

   应用范围 返回TOP

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„ TFT-LCD Monitors 

„ LCD Televisions

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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电路原理图 返回TOP

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ntegrated Buffer
Part NO.	VDD  (V) min	VDD  (V) max	CH  Vr+ Vcom	IOUT (mA)  Vr,Vcom	S/R  (V/μs） Vr,Vcom	BW (MHz） Vr,Vcom	ISC (mA) Vr,Vcom	Note	Package
CXLC8973	6.5	18	1	100	20	19	260	SMBus, Rail-to-Rail Output	TDFN3X3-10
CXLC8974	9	20	14+1	25,   100	16,   70	10,   19	100, 260	Rail-to-Rail   Output,  SMBus,2 Banks MTP	QFN5X5-32
CXLC8975	6.5	19.5	18+1	30,   100	16,   80	9,   15	120,  300	Rail-to-Rail   Output	TQFP7X7-48/(FD)
CXLC8976	6.5	19.5	14+1	30,   100	16,   80	9,   15	120, 300	Rail-to-Rail   Output	TQFP7X7-48/(FD)
CXLC8977	7	20	12+1	25, 100	16, 50	30	100, 300	Rail-to-Rail   Output,  SMBus,2 Banks REG	QFN4X4-24
CXLC8978	7	20	16+2	25,   100	16,   50	30	100,  300	Rail-to-Rail   Output, SMBus,2 Banks MTP	QFN5X5-28
CXLC8979	7	20	12+1+1	25, 100	16, 50	30	100, 300	Rail-to-Rail   Output, SMBus,Banks MTP, CRC	QFN4X4-24
CXLC8980	6.5	18	14+1	25,   100	20,   20	10,   20	75,  140	Rail-to-Rail   Output,SMBus ,2 Banks MTP, Checksum	TQFN5X5-32
CXLC8981	7	18	1	100	23	20	270	SMBus,Rail-to-Rail  Output	TDFN3X3-8
CXLC8982	7	18	1	100	--	--	--	SMBus,   VCOM REF	TDFN3X3-8
CXLC8983	7	20	8+1	25, 100	16, 50	30	100, 300	SMBus,   Rail-to-Rail  Output,2 Bank MTP	QFN4X4-24