参数资料
型号: LM1253AAE/NA
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 画面叠加
英文描述: ON-SCREEN DISPLAY IC, PDIP28
封装: 0.600 INCH, PLASTIC, DIP-28
文件页数: 34/61页
文件大小: 1671K
代理商: LM1253AAE/NA
Table of Contents
Block and Connection Diagrams
3
Absolute Maximum Ratings
5
Operating Ratings
5
Electrical Characteristics
5
Test Circuit
7
Test Settings
8
Pin Descriptions
8
Input/Output Schematics
13
National VideoPlex Video System
15
ESD and Arc-Over Protection
16
Pre-Amp Functional Description
17
Horizontal Phase Locked Loop
19
Fault Operation
19
Power Save Mode
19
Schematics
20
PCB Layout
22
OSD Generator Operation
23
Micro-Controller Interface
27
LM1253A Address Map
29
Pre-Amp Interface Registers
30
Two-Color Attribute Table
31
Four-Color Attribute Table
31
Display Page RAM
32
Controller Register Definitions
40
Character Font
51
List of Tables
Table 1 Control Test Settings
7
Table 2 Registers Controlling the Output
Video and Clamp Signal
18
Table 3 Character ROM Address Map
29
Table 4 Display Page RAM Address Map
29
Table 5 OSD Interface Registers
30
Table 6 Pre-Amp Interface Registers
31
Table 7 Two-Color Attribute Registers
31
Table 8 Four-Color Attribute Registers
31
Table 9 Example 1 I
2C Transmission
35
Table 10 Example 2 I
2C Transmissions
36
Table 11 Example 3 I
2C Transmissions
39
Table 12 PLL Setting (Register 843Eh)
46
Table 13 Attribute Tables to I
2C Address
48
LM1253A
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