參數(shù)資料
型號: LM2462
廠商: National Semiconductor Corporation
英文描述: Monolithic Triple 3 ns CRT Driver
中文描述: 單片三3納秒CRT顯示器驅(qū)動
文件頁數(shù): 7/11頁
文件大?。?/td> 1065K
代理商: LM2462
Application Hints
(Continued)
NSC DEMONSTRATION BOARD
Figure 12 shows the routing and component placement on
the NSC LM126X/246X demonstration board. The sche-
matic of the board is shown in Figure 10 and Figure 11 This
board provides a good example of a layout that can be used
as a guide for future layouts. Note the location of the follow-
ing components:
C16, C19—V
bypass capacitor, located very close to
pin 4 and ground pins
C17, C20—V
BB
bypass capacitors, located close to pin 8
and ground
C46, C47, C48—V
bypass capacitors, near LM2462
and V
CC
clamp diodes. Very important for arc protection.
The routing of the LM2462 outputs to the CRT is very critical
to achieving optimum performance. Figure 13 shows the
routing and component placement from pin 1 of the LM2462
to the blue cathode. The white line through the PCB traces
show the path of the blue video. Note that the components
are placed so that they almost line up from the output pin of
the LM2462 to the blue cathode pin of the CRT connector.
This is done to minimize the length of the video path be-
tween these two components. Note also that D8, D9, R24
and D6 are placed to minimize the size of the video nodes
that they are attached to. This minimizes parasitic capaci-
tance in the video path and also enhances the effectiveness
of the protection diodes. The anode of protection diode D8 is
connected directly to a section of the ground plane that has
a short and direct path to the LM2462 ground pins. The
cathode of D9 is connected to V
very close to decoupling
capacitor C48 (see Figure 13) which is connected to the
same section of the ground plane as D8. The diode place-
ment and routing is very important for minimizing the voltage
stress on the LM2462 during an arc-over event. Lastly, no-
tice that S3 is placed very close to the blue cathode and is
tied directly to CRT ground.
L
www.national.com
7
相關PDF資料
PDF描述
LM2462TA Monolithic Triple 3 ns CRT Driver
LM2467TA Monolithic Triple 7.5 ns CRT Driver
LM2467T Monolithic Triple 7.5 ns CRT Driver
LM2467 Monolithic Triple 7.5 ns CRT Driver
LM2468TA Monolothic Triple 14nS High Gain CRT Driver
相關代理商/技術參數(shù)
參數(shù)描述
LM2462AT WAF 制造商:Texas Instruments 功能描述:
LM2462TA 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Monolithic Triple 3 ns CRT Driver
LM2462TA/NOPB 功能描述:IC CRT DVR TRIPLE 3NS TO220-11 RoHS:是 類別:集成電路 (IC) >> PMIC - 顯示器驅(qū)動器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 顯示器類型:真空熒光 (VF) 配置:5 x 7(矩陣) 接口:串行 數(shù)字或字符:- 電流 - 電源:3.5mA 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SSOP(0.154",3.90mm 寬) 供應商設備封裝:16-QSOP 包裝:帶卷 (TR)
LM2463 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Monolithic Triple 4 ns CRT Driver
LM2463TA 制造商:OC White Company 功能描述:CRT DRVR 85V 11-Pin(11+Tab) TO-220 Rail