Datasheet > LM1882-RCM

LM1882-RCM

更新时间： 2024-11-22 22:51:55

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
16页	343K
描述
Programmable Video Sync Generator

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LM1882-RCM 数据手册

December 1998

LM1882•54ACT715

LM1882-R•54ACT715-R Programmable Video Sync

Generator

LM1882-R is mask programmed to default to a Clock En-

abled state. Bit 10 of the Status Register defaults to a logic

General Description

The ’ACT715/LM1882 and ’ACT715-R/LM1882-R are 20-pin

“1”. Although completely (re)programmable, the ’ACT715-R/

TTL-input compatible devices capable of generating Hori-

LM1882-R version is better suited for applications using the

zontal, Vertical and Composite Sync and Blank signals for

default 14.31818 MHz RS-170 register values. This feature

televisions and monitors. All pulse widths are completely de-

allows power-up directly into operation, following a single

finable by the user. The devices are capable of generating

CLEAR pulse.

signals for both interlaced and noninterlaced modes of op-

eration. Equalization and serration pulses can be introduced

into the Composite Sync signal when needed.

Features

n Maximum Input Clock Frequency 130 MHz

Four additional signals can also be made available when

Composite Sync or Blank are used. These signals can be

used to generate horizontal or vertical gating pulses, cursor

position or vertical Interrupt signal.

n Interlaced and non-interlaced formats available

n Separate or composite horizontal and vertical Sync and

Blank signals available

n Complete control of pulse width via register

programming

n All inputs are TTL compatible

These devices make no assumptions concerning the system

architecture. Line rate and field/frame rate are all a function

of the values programmed into the data registers, the status

n 8 mA drive on all outputs

n Default RS170/NTSC values mask programmed into

registers

n 4 KV minimum ESD immunity

n ’ACT715-R/LM1882-R is mask programmed to default to

a Clock Enable state for easier start-up into

14.31818 MHz RS170 timing

The ’ACT715/LM1882 is mask programmed to default to a

Clock Disable state. Bit 10 of the Status Register, Register 0,

defaults to a logic “0”. This facilitates (re)programming be-

fore operation.

The ’ACT715-R/LM1882-R is the same as the ’ACT715/

LM1882 in all respects except that the ’ACT715-R/

Connection Diagrams

Pin Assignment for

DIP and SOIC

Pin Assignment

for LCC

DS100232-1

DS100232-2

Order Number LM1882CN or LM1882CM

For Default RS-170, Order Number

LM1882-RCN or LM1882-RCM

TRI-STATE^®is a registered trademark of National Semiconductor Corporation.

™

FACT is a trademark of Fairchild Semiconductor Corporation.

DS100232

www.national.com

12 3 4 5 6 7...16

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与LM1882-RCM相关器件

型号	品牌	获取价格	描述	数据表
LM1882-RCMX	TI	获取价格	SPECIALTY CONSUMER CIRCUIT, PDSO20, SOIC-20
LM1882RCN	ETC	获取价格	TV/Video Sync Circuit
LM1882-RCN	NSC	获取价格	Programmable Video Sync Generator
LM1882-RD	TI	获取价格	SPECIALTY CONSUMER CIRCUIT, CDIP20, CERAMIC, DIP-20
LM1882RE/883	TI	获取价格	SPECIALTY CONSUMER CIRCUIT, CQCC20, CERAMIC, LCC-20
LM1882-REV	TI	获取价格	SPECIALTY CONSUMER CIRCUIT, CQCC20, LCC-20
LM1882RJ/883	TI	获取价格	SPECIALTY CONSUMER CIRCUIT, CDIP20, CERAMIC, DIP-20
LM1882-RL	TI	获取价格	SPECIALTY CONSUMER CIRCUIT, CQCC20, CERAMIC, LCC-20
LM1882-RP	TI	获取价格	SPECIALTY CONSUMER CIRCUIT, PDIP20, PLASTIC, DIP-20
LM1882S	TI	获取价格	SPECIALTY CONSUMER CIRCUIT, PDSO20, SOIC-20

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