音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

LM1236 Datasheet

  • LM1236

  • 150 MHz I2C Compatible RGB Preamplifier with Internal 254 Ch...

  • 43頁(yè)

  • NSC

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

LM1236 150 MHz I
2
C Compatible RGB Preamplifier with Internal 254 Character OSD ROM, 512
Character RAM and 4 DACs
PRELIMINARY
September 2003
LM1236
150 MHz I
2
C Compatible RGB Preamplifier with Internal
254 Character OSD ROM, 512 Character RAM and 4
DACs
General Description
The LM1236 pre-amp is an integrated CMOS CRT preamp.
It has an I
2
C compatible interface which allows control of all
the parameters necessary to directly setup and adjust the
gain and contrast in the CRT display. Brightness and bias
can be controlled through the DAC outputs, which are well
matched to the LM2479 and LM2480 integrated bias clamp
ICs. The LM1236 preamp is also designed to be compatible
with the LM246x high gain driver family.
Black level clamping of the video signal is carried out directly
on the AC coupled input signal into the high impedance
preamplifier input, thus eliminating the need for additional
clamp capacitors. Horizontal and vertical blanking of the
outputs is provided. Vertical blanking is optional and its
duration is register programmable.
The IC is packaged in an industry standard 24-lead DIP
molded plastic package.
n
OSD Window Fade In/Fade Out
n
OSD Half Tone Transparency
n
OSD override allows OSD messages to override video
and the use of burn-in screens with no video output.
n
4 DAC outputs (8-bit resolution) for bus controlled CRT
bias and brightness
n
Spot killer which blanks the video outputs when V
CC
falls below the specified threshold
n
Suitable for use with discrete or integrated clamp, with
software configurable brightness mixer
n
4-Bit Programmable start position for internal
Horizontal Blanking
n
Horizontal blanking and OSD synchronization directly
from deflection signals. The blanking can be disabled, if
desired.
n
Vertical blanking and OSD synchronization directly from
deflection signals. The blanking width is register
programmable and can be disabled, if desired.
n
Power Saving Mode with 65% power reduction
n
Matched to LM246x driver and LM2479/80 bias IC鈥檚
Features
n
Internal 254 character OSD ROM usable as either (a)
190 2-color plus 64 4-color characters, (b) 318 2-color
characters, or (c) some combination in between
n
Internal 512 character RAM, which can be displayed as
one single or two independent windows
n
Enhanced I
2
C compatible microcontroller interface
to allow versatile Page RAM access
Applications
n
Low end 15" and 17" bus controlled monitors with OSD
n
1024x768 displays up to 85 Hz requiring OSD capability
n
Very low cost systems with LM246x driver
漏 2005 National Semiconductor Corporation
DS200757
www.national.com

LM1236相關(guān)型號(hào)PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號(hào)推薦

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫(kù)提出的寶貴意見，您的參與是維庫(kù)提升服務(wù)的動(dòng)力！意見一經(jīng)采納，將有感恩紅包奉上哦！