EL1881CN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Video Sync Separator
• Characteristics:
  • High-performance sync separator
  • Supports multiple video standards
  • Compact and versatile design
• Package: DIP-8, SOIC-8
• Essence: Extracts synchronization signals from composite video signals
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 4.75V to 5.25V
• Operating Temperature: -40°C to +85°C
• Sync Input Range: 0.5V to 2.0V
• Sync Output Level: TTL compatible
• Sync Output Rise/Fall Time: 20ns typical
• Sync Output Duty Cycle: 45% to 55%
• Sync Output Impedance: 50Ω

Detailed Pin Configuration

The EL1881CN has a total of 8 pins arranged as follows:

1. SYNC IN - Input for composite video signal
2. GND - Ground reference
3. VCC - Supply voltage
4. NC - No connection
5. NC - No connection
6. SYNC OUT - Output for extracted sync signal
7. BLANKING - Output for blanking signal
8. VIDEO - Output for video signal

Functional Features

• Extracts horizontal and vertical synchronization signals from composite video input
• Supports multiple video standards including NTSC, PAL, and SECAM
• Provides separate outputs for sync, blanking, and video signals
• Wide operating temperature range for various applications
• Low power consumption and compact design

Advantages and Disadvantages

Advantages: - High-performance sync separation - Versatile compatibility with different video standards - Compact and easy to integrate into various systems - Low power consumption

Disadvantages: - Limited output impedance options - No built-in protection features for overvoltage or ESD events

Working Principles

The EL1881CN is designed to extract synchronization signals from composite video signals. It utilizes advanced circuitry to accurately separate the horizontal and vertical sync components from the video signal. The extracted sync signals are then made available at the SYNC OUT pin, while the blanking and video signals are provided at their respective output pins.

Detailed Application Field Plans

The EL1881CN finds applications in various fields where synchronization signals need to be extracted from composite video signals. Some of the common application areas include:

1. Television and broadcast equipment
2. Video surveillance systems
3. Video game consoles
4. Multimedia devices
5. Industrial video processing systems

Detailed and Complete Alternative Models

1. LM1881 - Sync Separator IC by Texas Instruments
2. MAX7456 - On-Screen Display (OSD) with Sync Separator by Maxim Integrated
3. TDA4858 - Sync Separator and Horizontal Processor by NXP Semiconductors
4. AD724 - RGB to NTSC/PAL Encoder with Sync Separator by Analog Devices
5. MC1377 - RGB to PAL/NTSC Encoder with Sync Separator by ON Semiconductor

(Note: This list is not exhaustive and there may be other alternative models available in the market.)

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