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MAX9669ETI+

更新时间： 2024-11-06 06:14:43
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理
页数 文件大小 规格书
23页 433K
描述
Analog Circuit, 1 Func, BICMOS, ROHS COMPLIANT, MO-220WHHD-1, TQFN-28

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MAX9669ETI+ 数据手册

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19-4326; Rev 4; 8/11  
10-Bit Programmable Gamma Reference  
System with MTP for TFT LCDs  
MAX69  
General Description  
Features  
The MAX9669 outputs 16 voltage references for gamma  
correction in TFT LCDs and one voltage reference for  
VCOM. Each gamma reference voltage has its own 10-  
bit digital-to-analog converter (DAC) and buffer to  
ensure a stable voltage. The VCOM reference voltage  
has its own 10-bit DAC and an amplifier to ensure a sta-  
ble voltage when critical levels and patterns are dis-  
played. The MAX9669 features integrated multiple-time  
programmable (MTP) memory to store gamma and  
VCOM values on the chip, eliminating the need for exter-  
nal EEPROM. The MAX9669 supports up to 100 write  
operations to the on-chip nonvolatile memory.  
o 16-Channel Gamma Correction, 10-Bit Resolution  
o VCOM Driver  
o Integrated MTP Memory  
o Programmable VCOM Limits  
o 200mA Peak Current on Gamma Channels  
o 600mA Peak Current on VCOM Channel  
o 1µs Settling Time  
Ordering Information  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
28 TQFN-EP*  
28 TQFN-EP*  
The gamma outputs can drive 200mA peak transient  
current and settle within 1µs. The VCOM output can  
provide 600mA peak transient current and also settles  
within 1µs. The analog supply voltage range extends  
from 9V to 20V, and the digital supply voltage range  
extends from 2.7V to 3.6V.  
MAX9669ETI+  
MAX9669ETI/V+  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed pad.  
/V denotes an automotive qualified part.  
Gamma values and the VCOM value are programmed  
Functional Diagram  
2
into registers through the I C interface.  
AVDD  
Applications  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10-BIT  
DAC  
GMA1  
GMA2  
GMA3  
GMA4  
GMA5  
GMA6  
GMA7  
GMA8  
GMA9  
GMA10  
GMA11  
GMA12  
GMA13  
GMA14  
GMA15  
10-BIT  
DAC  
TFT LCDs  
10-BIT  
DAC  
Pin Configuration  
10-BIT  
DAC  
10-BIT  
DAC  
TOP VIEW  
10-BIT  
DAC  
10-BIT  
DAC  
21 20 19 18 17 16 15  
10-BIT  
DAC  
14  
13  
GMA9 22  
GMA3  
GMA2  
2
MTP  
MEMORY  
DAC  
REGISTERS  
10-BIT  
DAC  
I
C
REGISTERS  
GMA10 23  
10-BIT  
DAC  
12 GMA1  
24  
25  
26  
27  
28  
GMA11  
GMA12  
GMA13  
GMA14  
GMA15  
10-BIT  
DAC  
AGND  
11  
10  
9
MAX9669  
10-BIT  
DAC  
AVDD  
10-BIT  
DAC  
AVDD_AMP  
VCOM_FB  
EP*  
6
+
10-BIT  
DAC  
8
10-BIT  
DAC  
1
2
3
4
5
7
10-BIT  
DAC  
GMA16  
AVDD_AMP  
VCOM  
10-BIT  
DAC  
AGND_AMP  
VCOM_FB  
DVDD  
SDA  
SCL  
THIN QFN  
(5mm × 5mm)  
2
I
C
MAX9669  
INTERFACE  
A0  
DGND  
*EP = EXPOSED PAD, CONNECT EP TO DIGITAL GROUND PLANE.  
AGND  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
1234567...23

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