CXLC8979由12+1+1通道缓冲靶组成，以满足薄膜晶体管液晶显示器（TFT-LCD）的需要。该装置包括12个gamma缓冲器、1个Vcom缓冲器和1个可通过I2 C接口编程的修复操作。它包含两个寄存器组，可以存储两组不同的gamma和VCOM值。每个缓冲器能够驱动重电容负载并提供大电流负载（Vcom:100mA，Gammas:25mA）
12+1+1频道：
12通道轨对轨可编程伽马缓冲器
每个通道10位分辨率
每个通道的25毫安输出电流
1通道轨对轨Vcom缓冲器：
10位可调输出
输出电流±100mA
输出短路电流±300毫安
50V/μs转换率
可编程VCOM限制
1通道轨对轨维修操作：
30mA输出电流
输出短路±100mA
使用BKSEL选择哪个银行数据输出的两个银行寄存器
2线I2 C从模式接口
非易失性存储器（NVM）存储设置
[ CXLC8979 ]
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产品概述 返回TOP
产品特点 返回TOP
„ Supply Operation Range : 9V to 20V
„ 12+1+1 Channels :
--- 12 Channel Rail-to-Rail Programmable Gamma Buffers
Š 10 bits Resolution for each Channel
Š 25mA Output Current for each Channel
---1 Channel Rail-to-Rail Vcom Buffer:
Š 10 Bits Adjustable Output
Š ±100mA Output Current
Š ±300mA Output Short-Circuit Current
Š 50V/μs Slew Rate
Š Programmable VCOM Limits
---1 Channel Rail-to-Rail Repair OP:
Š ±30mA Output Current
Š ±100mA Output Short
-Circuit Current Š 15V/μs Slew Rate
---2 Banks Registers Using BKSEL to Select which Bank Data Output
„ 2-Wire I2 C Slave Mode Interface
„ Non-Volatile Memory (NVM) Store Setting (at Least 100 Re-Write Times)
„ QFN4X4-24 Package
应用范围 返回TOP
„ TFT-LCD Monitors
„ LCD Televisions
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ntegrated Buffer |
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|
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 |
|
6.5 |
18 |
1 |
100 |
20 |
19 |
260 |
SMBus, Rail-to-Rail Output |
TDFN3X3-10 |
|
|
9 |
20 |
14+1 |
25, 100 |
16, 70 |
10, 19 |
100, 260 |
Rail-to-Rail Output, SMBus,2 Banks MTP |
QFN5X5-32 |
|
|
6.5 |
19.5 |
18+1 |
30, 100 |
16, 80 |
9, 15 |
120, 300 |
Rail-to-Rail Output |
TQFP7X7-48/(FD) |
|
|
6.5 |
19.5 |
14+1 |
30, 100 |
16, 80 |
9, 15 |
120, 300 |
Rail-to-Rail Output |
TQFP7X7-48/(FD) |
|
|
7 |
20 |
12+1 |
25, 100 |
16, 50 |
30 |
100, 300 |
Rail-to-Rail Output, SMBus,2 Banks REG |
QFN4X4-24 |
|
|
7 |
20 |
16+2 |
25, 100 |
16, 50 |
30 |
100, 300 |
Rail-to-Rail Output, SMBus,2 Banks MTP |
QFN5X5-28 |
|
|
7 |
20 |
12+1+1 |
25, 100 |
16, 50 |
30 |
100, 300 |
Rail-to-Rail Output, SMBus,Banks MTP, CRC |
QFN4X4-24 |
|
|
6.5 |
18 |
14+1 |
25, 100 |
20, 20 |
10, 20 |
75, 140 |
Rail-to-Rail Output,SMBus ,2 Banks MTP, Checksum |
TQFN5X5-32 |
|
|
7 |
18 |
1 |
100 |
23 |
20 |
270 |
SMBus,Rail-to-Rail Output |
TDFN3X3-8 |
|
|
7 |
18 |
1 |
100 |
-- |
-- |
-- |
SMBus, VCOM REF |
TDFN3X3-8 |
|
|
7 |
20 |
8+1 |
25, 100 |
16, 50 |
30 |
100, 300 |
SMBus, Rail-to-Rail Output,2 Bank MTP |
QFN4X4-24 |
|
|
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