Datasheet > ELM624_1

ELM624_1

更新时间： 2024-11-23 04:17:19

品牌	Logo	应用领域
ELM		局域网
页数	文件大小	规格书
16页	131K
描述
Control L (LANC) to RS232 Interpreter

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ELM624_1 数据手册

ELM624

Control L (LANC) to RS232 Interpreter

Description

Features

The Control L or LANC interface is an industry

• Low power CMOS design

standard introduced by the Sony Corporation for

controlling audio and video devices. It uses a bit

serial data format, and requires that the controller be

synchronized to the controlled device – something

which is difficult to do using standard serial

interfaces. The ELM624 is an 8 pin integrated circuit

that performs the synchronizing function for you.

• Enable input allows control of multiple devices

• Configurable with simple AT commands

• ASCII output formatted as standard hex digits

• Oscilloscope trigger pulse output

• Power control pulse output

All user interaction with the ELM624 is by

standard ASCII characters over an RS232 interface.

There is no special formatting required, other than

perhaps an understanding of the hexadecimal

numbering system, nor is there a need for a powerful

PC - virtually any model with a serial port will do.

• Crystal controlled for timing accuracy

• Works with 50 Hz and 60 Hz systems

• Power up to monitor mode

Since the ELM624 was designed to provide a

cost-effective way for people to experiment with the

Control L system, many features typically found in

commercial devices, such as RS232 handshaking,

variable baud rates, extra buffering of signals, etc.

have not been implemented. Responses are kept to

a minimum as well (eg. a single question mark is

returned for a misunderstood command), but the

general principles of operation are demonstrated

and for many applications, this is all that is required.

Connection Diagram

PDIP and SOIC

(top view)

VDD

XT1

VSS

LANC

XT2

Applications

Enable

• Video editors

• Time-lapse recording controllers

• Programmed control of A/V equipment

• Remote camera controls

3.58MHz

Block Diagram

XT1

XT2

VDD

Control

Enable

VDD

LANC

RS232

Interface

Control L

Interface

VSS

ELM624DSD

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