LM1881 Video separation chip
This content will be shared across all product pages.
The LM1881 is a video sync separator chip designed to extract timing information from composite video signals. It separates composite sync, vertical sync, and burst/back porch timing, making it an essential component in video processing systems. The LM1881 is widely used in applications such as video monitors, display systems, and video signal processing equipment.
Key Features:
- Sync Separation: Extracts composite sync, vertical sync, and burst/back porch timing from composite video signals.
- Wide Input Range: Operates with a wide range of input video signal levels.
- Stable Operation: Provides stable sync separation across various video signal formats.
- Low Power Consumption: Designed for low power operation, making it suitable for battery-powered devices.
- Single Supply Operation: Operates from a single 5V power supply.
- Compact Package: Available in an 8-pin DIP or SOIC package.
- Supply Voltage: 5V ±10%
- Input Voltage Range: 0.5V to 2V peak-to-peak
- Input Impedance: Typically 10 kΩ
- Output Levels: TTL-compatible
- Composite Sync Output Pulse Width: 4.7 µs
- Vertical Sync Output Pulse Width: 190 µs (NTSC), 290 µs (PAL)
- Power Dissipation: Typically 40 mW
- Operating Temperature Range: 0°C to +70°C
- Video Monitors: Used in CRT and LCD monitors for sync separation and timing.
- Video Signal Processing: Essential for video processing equipment requiring sync extraction.
- Display Systems: Utilized in projection and large screen display systems.
- Video Test Equipment: Applied in equipment for testing and measuring video signals.
- CCTV Systems: Used in surveillance systems for video signal synchronization.
- Broadcast Equipment: Suitable for professional video broadcasting and production equipment.
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment